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Breakthrough Brings Star Trek Transporter Closer

japerr writes to mention The Independant is reporting that a new breakthrough may bring scientists one step closer to a Star Trek style transporter. " A team of physicists has teleported data over a distance of 89 miles from the Canary Island of La Palma to the neighbouring island of Tenerife, which is 10 times further than the previous attempt at teleportation through free space. The scientists did it by exploiting the "spooky" and virtually unfathomable field of quantum entanglement - when the state of matter rather than matter itself is sent from one place to another. Tiny packets or particles of light, photons, were used to teleport information between telescopes on the two islands. The photons did it by quantum entanglement and scientists hope it will form the basis of a way of sending encrypted data."

503 comments

  1. The "Independant"? by Anonymous Coward · · Score: 0

    Come on, guys. :-(

    1. Re:The "Independant"? by spun · · Score: 4, Funny

      They tried to teleport the name of the source directly into the summary and it got scrambled. Cut them some slack, it's a new technology.

      --
      - None can love freedom heartily, but good men; the rest love not freedom, but license. -- John Milton
    2. Re:The "Independant"? by Anonymous Coward · · Score: 0

      Oh, was that a typo? I thought The Independant was a new newspaper for insects.

    3. Re:The "Independant"? by MannyO · · Score: 2, Informative

      Well, a google search for "the independant" changes all the options to "independent" and http://theindependant.com/ looks like a news site but it's just a parked domain. So yeah, it may be a typo.

    4. Re:The "Independant"? by corifornia · · Score: 0

      teleported data over a distance of 89 miles from the Canary Island of La Palma

      50 bucks it was a goatse link, any takers?
      --
      crap.
    5. Re:The "Independant"? by Columcille · · Score: 1

      Dang trolls, so that's how they always manage to get first post!

      --
      I love my sig.
    6. Re:The "Independant"? by slickwillie · · Score: 1

      The OP actually got it right.

      The Talosians are making it appear to read "Independant".

    7. Re:The "Independant"? by minginqunt · · Score: 1

      Tags: misleadingsummary independant

      I think that Slashdot's blurbs are getting notably worse over time. And I wouldn't have though that were possible given the shockingly low starting base.

    8. Re:The "Independant"? by Anonymous Coward · · Score: 0

      "Independant" is an infact a legitimate word.

    9. Re:The "Independant"? by Anonymous Coward · · Score: 0
    10. Re:The "Independant"? by dosquatch · · Score: 2, Funny

      "Independant" is an infact

      infact; v; 1. to agressively attack with facts and/or information 2. the state of being so set upon ("I'm infacting as hard as I can, Captain!", "Help! Help! I'm being infacted!") n; any implement used in the execution of such
      See also "LART", "clueing"

      I'm not so sure that "Independant" is an infact, but it makes my head hurt so you may be right.

      --
      "Hey, the third matrix movie would have been good except for the plot,story, and acting." --AC
  2. Bad Summary by Zenaku · · Score: 5, Funny

    It is true that "Star Trek style Transporters" are used to send Data, but it is with a capital "D" and they can send other crew members too.

    Misleading summary. Minus 100 points.

    --
    If fate makes you a motorcycle, you become a motorcycle.
    1. Re:Bad Summary by RealGrouchy · · Score: 5, Funny

      It is true that "Star Trek style Transporters" are used to send Data

      He woke up the next day and told Geordi he didn't think he'd be able to go to the holodeck.

      "Sorry, but I woke up feeling really encrypted"

      - RG>
      --
      Hey pal, this isn't a pleasantforest, so don't waste my time with pleasantries!
    2. Re:Bad Summary by Tablizer · · Score: 5, Funny

      [Data:] "Sorry, but I woke up feeling really encrypted"

      Explains why Data had the urge to write Perl ;-)

      -1 Troll

    3. Re:Bad Summary by Viraptor · · Score: 5, Funny

      Data: Cpt., I feel encrypted by that last teleportation...
      Cpt.: What do you mean?
      Data: All my video data has been modified... and there is a number burned in my mind... it's 09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0.

    4. Re:Bad Summary by thre5her · · Score: 4, Insightful

      Data doesn't use contractions.

    5. Re:Bad Summary by Anonymous Coward · · Score: 0

      >> [Data:] "Sorry, but I woke up feeling really encrypted"

      > Explains why Data had the urge to write Perl ;-)

      No no, it's the other way around-- Perl writes Data. Larry Wall wrote Perl. :)

    6. Re:Bad Summary by fizzup · · Score: 1

      But you can transmit the quantum state of matter:

      1. Step into the transporter at the first site.
      2. Transmit quantum state to the second site.
      3. Assemble a facsimile at the second site, using the transmitted quantum data.
      4. Facsimile steps out of the transporter.
      5. Second site sends a positive acknowledgement to the first site.
      6. First site destroys the original.

      You go first, and tell me what it's like.

    7. Re:Bad Summary by Old+Benjamin · · Score: 0

      Microsoft rejected my license... So I'm stuck encrypted forever.

      What did you say? I couldn't understand.

      --
      "The quickest way to end a war is to lose it" -Orwell
    8. Re:Bad Summary by gr8f8d8 · · Score: 1

      You forget... with that transport VistaBot Installed security patch V2.343. That's a known issue....

    9. Re:Bad Summary by Archangel_Azazel · · Score: 1

      Didn't I see that process on an episode of The Outer Limits?

      --
      Your mind is like a parachute. It works best when it's been opened.
    10. Re:Bad Summary by big_oaf · · Score: 5, Informative

      Sorry to nit, but since we are flexing our geek muscles here (the only muscles I have), Data has actually used contractions on occasion. According to Memory Alpha, "...Data also had trouble using contractions in regular speech although this was part of his programming by Dr. Soong." So apparently, it was possible for Data to use contractions, but not without difficulty and, therefore, rarity.

      --
      -- My hovercraft is full of eels.
    11. Re:Bad Summary by revengebomber · · Score: 5, Funny

      That wasn't informative. Everyone on slashdot already knows that.

      --
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      45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2
    12. Re:Bad Summary by Eravnrekaree · · Score: 1

      Seriously, just because we can send data, with a lowecase d, does not mean we can send a human. They might just come out the other end, thier body, but no life in it, especially since we are not sending the body itself, just data representing it I suppose, sort of replicating it?

      This might have better uses with sending data, computer data. Does this technique since it uses quantum entanglement, allow data to be sent faster than the speed of light, the way quantum nonlocality allows?

    13. Re:Bad Summary by Webmasterguy · · Score: 1

      we are all just packets of information, I can only see other people because light is reflected or absorbed from them, then that information is sent to me at the speed of light etc. Webmasterguy

    14. Re:Bad Summary by someone1234 · · Score: 1

      A misfired quantum teleportation caused that flaw in his positronic brain.

      --
      Patents Drive Free Software as Hurricanes Drive Construction Industry
    15. Re:Bad Summary by Sobrique · · Score: 1
      Even if we get as far as actually being able to transfer 'matter replication' then there's still the fairly fundamental problem of the 'state' of the thing you're transporting.

      I mean, it's hard enough getting 'consistent' backups of computer systems (which basically requires suspending operations to get a good copy). We still have no clue how to define the 'state' of a human system. It's not like we ever have to shutdown, and restart people.

    16. Re:Bad Summary by Anonymous Coward · · Score: 0

      maybe he got an upgrade. He can copy other peoples voices but can't say it's?

  3. I don't think... by u-bend · · Score: 0, Redundant

    ...that they meant Brent Spiner here:
    >A team of physicists has teleported data over a distance of 89 miles.

    --
    u-bend
  4. Teleport? by jshriverWVU · · Score: 4, Insightful

    This sounds like a new form of fiber optics rather than teleportation. No item was physically disassembled and reassembled in another place. Rather they used telescopes to focus light. Perhaps I misinterpreted the article.

    1. Re:Teleport? by Tablizer · · Score: 5, Funny

      This sounds like a new form of fiber optics rather than teleportation. No item was physically disassembled and reassembled in another place.

      In other words:

      No red-shirted crewman were harmed in this experiment.

    2. Re:Teleport? by Fireye · · Score: 1

      They used quantum theory/application to transmit the state of the photons. So, if this could be applied to real matter, you would know what stuff goes where and then have to assemble it on the receiving end. Note, no disassembly of the transmitting end.

      (I think)

      (Maybe)

    3. Re:Teleport? by brunascle · · Score: 4, Informative

      you missed the part about quantum entanglement, which is not simply fiber optics. Niels Bohr is rolling in his grave right now.

    4. Re:Teleport? by huckda · · Score: 0, Flamebait

      yes...stupid article summary

      --
      "Just Smile and Nod." --Huck
    5. Re:Teleport? by nelsonal · · Score: 5, Funny

      Wouldn't he only be rolling in his grave if you try to observe him?

      --
      Degaussing scares the bad magnetism out of the monitor and fills it with good karma.
    6. Re:Teleport? by UnHolier+than+ever · · Score: 3, Informative

      It is teleportation of information, not of matter. We scientists define teleportaion as "moving something between point A and point B without ever being in between", which is different from the Star Trek "transforming matter in energy and into matter again". It does get us a whole lot more funding than if we had called it something unfashionable like "Communication through entanglement".

      By the way, IAAT (I am a teleporter). I don't get to work work in the Canaries though. It's a shame.

    7. Re:Teleport? by Lockejaw · · Score: 4, Funny

      He'd be spinning both clockwise and counterclockwise until you observe him.

      --
      (IANAL)
    8. Re:Teleport? by crAckZ · · Score: 1

      Wouldn't he only be rolling in his grave if you try to observe him? mod up. by the way, is the cat dead or alive?
    9. Re:Teleport? by LoveGoblin · · Score: 5, Funny

      Hah. I read that as "No red-shifted crewman were harmed" and thought "Well, they would be moving pretty fast..."

    10. Re:Teleport? by vertinox · · Score: 1

      No red-shirted crewman were harmed in this experiment.

      Well... Except the one that looked at the fiber optic laser with his remaining good eye.

      --
      "I am the king of the Romans, and am superior to rules of grammar!"
      -Sigismund, Holy Roman Emperor (1368-1437)
    11. Re:Teleport? by sabernet · · Score: 4, Funny

      mod up. by the way, is the cat dead or alive? Yes, I believe it is. But I'm not certain.
    12. Re:Teleport? by dave420 · · Score: 4, Funny

      I have a quantumly-entangled scale model of him on my desk, and it's rolling like a bastard right now. Just knocked my coffee into the middle of next week. But that's a different problem all together.

    13. Re:Teleport? by AeroIllini · · Score: 1

      Nah, that's Heisenburg.

      --
      For security, the MD5 hash of this message and sig is 09f911029d74e35bd84156c5635688c0.
    14. Re:Teleport? by Anonymous Coward · · Score: 0

      Hah. I read that as "No red-shifted crewman were harmed" and thought "Well, they would be moving pretty fast..."


      And i read that as "No shit faced crewmen were singing harmony"
    15. Re:Teleport? by lamarguy91 · · Score: 1

      So the tree didn't make a sound when it crashed in the forest and nobody was around to hear it?

      Or did it just quantumly entangle itself from standing upright to laying over?

    16. Re:Teleport? by servognome · · Score: 1

      by the way, is the cat dead or alive?
      I'm sure it's died of old age by now
      --
      D6 63 0D 70 89 81 BB 8E 7B 7C 5F 5D 54 EA AB 73
    17. Re:Teleport? by paganizer · · Score: 0

      Care to clarify the "faster than light" thing? or have you "teleporters" not figured out a way to test it yet? with the small distances involved I could see accurate measurement being a pain.

      --
      Why, yes, I AM a Pagan Libertarian.
    18. Re:Teleport? by Chris+Burke · · Score: 1

      I have a quantumly-entangled scale model of him on my desk, and it's rolling like a bastard right now. Just knocked my coffee into the middle of next week. But that's a different problem all together.

      I guess how you feel when the coffee shows up next week depends on whether or not its still in its cup or if it suddenly spills out of nowhere onto your lap.

      --

      The enemies of Democracy are
    19. Re:Teleport? by Anonymous Coward · · Score: 0

      Would that make him Schrödinger's colleague?

    20. Re:Teleport? by kmac06 · · Score: 1

      The state that is being teleported can only be reconstructed by sending some amount of classical information, which must be sent at (or slower than) the speed of light. So there is no information moving "faster than light".

    21. Re:Teleport? by UnHolier+than+ever · · Score: 1

      Very easy. We do not go faster than light. Once, a journalist came to see me for some local TV station. He asked: "So, how do you manage to go faster than light?". We answered: "Actually, we can't go faster than light. We still need to have a classical signal on the side. The classical signal doesn't encode information, but we still have to wait for it to arrive otherwise we can't retrieve the information". Guess what was the headline the following morning?

      Yep, "Local scientists manage to communicate faster than light."

      By the way, it's not that hard to test. Three kilometers at the speed of light is 10 microseconds, which is still kind of fast but well within the range of today's clocks.

    22. Re:Teleport? by cytg.net · · Score: 1

      mod parent up, that was funny

    23. Re:Teleport? by Anonymous Coward · · Score: 0

      That's a different problem.

  5. Accurate headline? by Verteiron · · Score: 4, Insightful

    From TFA, this sounds less like teleportation and more like another extension to the distance quantum cryptography has been successfully sent.

    --
    End of lesson. You may press the button.
    1. Re:Accurate headline? by Rakshasa+Taisab · · Score: 1

      Exactly... The thing is, they didn't even send data as per the summary's claim, but rather they observed the same data from two different locations.

      --
      - These characters were randomly selected.
    2. Re:Accurate headline? by Anonymous Coward · · Score: 0

      I know that if you think you understand quantum mechanics then you don't understand quantum mechanics, but could someone give a quick run-down on how this is supposed to work and how it has been proven that this isn't just the light reaching the second location?

  6. Does it matter? by Anonymous Coward · · Score: 1, Interesting

    If you want to teleport a brick, does its exact quantum state matter? Does it matter for life? It seems like the only use would be to teleport a running quantum computer.

    1. Re:Does it matter? by Goffee71 · · Score: 0

      Only if you want to send the spooky psyche of the brick over; the jolly, perky side remains where it was. Psychosis for bricks... I can see the lawsuits now.

      --
      If he's the Walrus then can I be a penguin please?
    2. Re:Does it matter? by PhxBlue · · Score: 1

      Does it matter for life?

      That depends on whether, when you transmit the tissue, the consciousness automatically goes with it.

      --
      !#@%*)anks for hanging up the phone, dear.
    3. Re:Does it matter? by Anonymous Coward · · Score: 0

      Now *THAT'S* what I call distributed computing!

    4. Re:Does it matter? by DerWulf · · Score: 1

      It certainly doesn't when I commute to work ...

      --

      ___
      No power in the 'verse can stop me
    5. Re:Does it matter? by Anonymous Coward · · Score: 0

      See "The Fly" with Vincent Price (or Jeff Goldblum)

  7. spooky? by Lord+Ender · · Score: 2

    The only thing spooky about this article is that the editors think data transmission and matter transmission are in any way related.

    --
    A slashdotter who didn't build his own computer is like a Jedi who didn't build his own lightsaber.
    1. Re:spooky? by jollyreaper · · Score: 1

      The only thing spooky about this article is that the editors think data transmission and matter transmission are in any way related. Speaking of that, what about fax machines? How come it's supposed to be sending the piece of paper to the other fax machine but I keep getting it back in the tray? I think it must be broken.
      --
      Kwisatz Haderach
      Sell the spice to CHOAM
      This Mahdi took Shaddam's Throne
    2. Re:spooky? by brunascle · · Score: 4, Interesting

      ugh. how are they not related? what is matter? how could you possibly distinguish 1 photon from another with equal properties? you cant. there is no difference.

      and "spooky" is a reference to Einstein's phrase "spooky action at a distance"

    3. Re:spooky? by freakmn · · Score: 2, Interesting

      That relation is mentioned in the fine article as the headline, so it's not the fault of the Slashdot editors. It does seem that it's more of an encryption method than anything after reading the content of the article.

      On that note, I think that encryption of a transmission of matter in data form is extremely important. Can you imagine what an intercepted transmission of that nature would do? It would bring an entirely new meaning to identity theft. What about in a war situation, if the leader of the enemy was intercepted, and there was an extra copy of him, with memories intact, that was captured? It would change much more than you'd see on the face of it.

      All in all, I think that it's not directly related to a transporter, but it could be used if one were invented. It really is not the best title.

      --
      warning: This post is likely to contain gobs of dripping sarcasm. Consume at your own risk.
    4. Re:spooky? by numbski · · Score: 4, Interesting

      How are they NOT related?

      Let's put it this way - there are two sects in the field of teleportation that I'm aware of right now.

      Sect 1 defines teleportation as the tearing down of matter, converting it into energy, transport that energy, and convert it back into matter.

      Sect 2 defines teleportation as scanning all of the information about an object, transport that INFORMATION to destination, create replica, then tear down the original.

      Star Trek subscribes to version 1, unless of course you're watching a very particular episode. :)

      Anyway, in both cases, you recall hearing the term "pattern buffer" in trek, right? In either case, you have to break Heisenberg's Law (Heisenberg compensator anyone?) about knowing the exact state and location of all particles that make up an object. You store that information, transmit it to the other site, and from that site you either reconstruct the original, or duplicate the original.

      The frightening thing is, I see this program in my head writing an XML document, with trees and braches going something like atom/particle/state, and gzip compress it, then transmit it over the fastest method available, decompress on the other side. Just add matter. :D

      Wow I'm sick. :P

      --

      Karma: Chameleon (mostly due to the fact that you come and go).

    5. Re:spooky? by maxume · · Score: 1

      I hereby dare you to transmit matter without also transmitting information.

      --
      Nerd rage is the funniest rage.
    6. Re:spooky? by Anonymous Coward · · Score: 0

      Just because you can't tell two objects apart doesn't mean that they are the same, singular, object.

    7. Re:spooky? by moderatorrater · · Score: 1

      The methods of "teleportation" that I've read get around Heisenburg's uncertainty principle in that it uses a third, unknown particle (in the case of the article, a photon) to transmit all the information between the particles. Since the particles don't break quantum states, it works, although we haven't been able to do it large scale yet.

    8. Re:spooky? by Jerry+Coffin · · Score: 2, Insightful

      It does seem that it's more of an encryption method than anything after reading the content of the article.

      It's not really encryption either -- it's just a way of transmitting some information, and knowing whether anybody else has intercepted the transmission. The relationship to encryption is that it allows you to transmit a key and know that it wasn't intercepted during transmission. Obviously, you only use the key if it wasn't intercepted. If memory serves, it's not immune to a MITM attack though. This is why the free-air transmission means something -- it's much easier to put your agent in the middle of an optical fiber.

      In the absence of public-key cryptography, this would be a big deal, as key distribution has historically been a big problem in encryption. In the presence of public key cryptography, however, the practical significance is likely to be fairly limited. In theory, if the problems associated with PK algorithms turned out to be easier than expected, this could become a big thing again -- but I see little sign of major breakthroughs in factoring, finding logarithms in a finite field, etc. Some pretty serious mathematicians have pretty solid arguments that elliptical curve encryption is probably not even amenable to the types of algorithms used for factoring and finite field algorithms (the sieve-style algorithms only work if you can prove "smoothness" and nobody's done so for elliptical curves -- and there are some fairly solid-looking arguments that they're not smooth).

      --
      The universe is a figment of its own imagination.
    9. Re:spooky? by Anonymous Coward · · Score: 0

      AND, it's not even clear that quantum teleportation is necessary for successful human-scale "teleportation" - in fact, my money would be on it not being necessary. Humans are large, macroscopic phenomena.

    10. Re:spooky? by Anonymous Coward · · Score: 0

      ... Just add matter.

      That right there shows that data transmission and matter transmission are different. Matter transmission != Data transmission. If you don't get it, you need to think harder about it. That you can use matter transmission to transmit data and that you can use data transmission to give an appearance of matter transmission doesn't make them equal.

    11. Re:spooky? by suv4x4 · · Score: 1

      Sect 1 defines teleportation as the tearing down of matter, converting it into energy, transport that energy, and convert it back into matter.

      Sect 2 defines teleportation as scanning all of the information about an object, transport that INFORMATION to destination, create replica, then tear down the original.


      Euh, I prefer Sect 3, a time-space bridge/warp, so I don't have to tear down my perfect haircut and rebuild it, put just pass through it and be elsewhere. Duh.

    12. Re:spooky? by caitsith01 · · Score: 1

      Just because you can't tell two objects apart doesn't mean that they are the same, singular, object.

      Precisely. GP would not be so keen to have his or her particles "reassembled" with exactly the same properties somewhere else while the originals are destroyed locally.

      In discussing "teleportation" many people seem to be unable to distinguish between two things being functionally identical and two things actually being the same thing. One is called "copying", the other might amount to teleportation.
      --
      Read Pynchon.
    13. Re:spooky? by crakbone · · Score: 2, Funny

      Either way, I think we are now one stop closer to the Fax-a-Pizza

    14. Re:spooky? by maxwell+demon · · Score: 1

      Heisenburg's uncertainty principle

      HeisenBERG! It's E, not U!
      Sorry, but I've seen that mistake far too often here.
      --
      The Tao of math: The numbers you can count are not the real numbers.
    15. Re:spooky? by mark-t · · Score: 1

      And sect 3 defines teleportation as a sort of macroscopic version of quantum tunnelling, where the object's probability diminishes to 0 in one location while simultaneously increasing to 1 at another location. The object never gets disassembled, torn down, or converted into energy, it is simply relocated.

    16. Re:spooky? by numbski · · Score: 1

      Don't suppose you have a whitepaper on that method, do you? :)

      I hate car trips.

      --

      Karma: Chameleon (mostly due to the fact that you come and go).

    17. Re:spooky? by numbski · · Score: 1

      Well that's just it. I'm seeing an increasing amount of references to teleportation which are sect 2 - trasmit data, duplicate, destroy the original. I recall seeing mention of it in sci-fi that way as far back as a Trek novel named Star Trek: Federation. The book came out around the same time as Generations, and told the story of Zephram Cochran, seemed for more plausible than the movie/tv version, and how he was appalled at transporter technology, as it essentially kept creating transporter duplicates, each one believing it is the original when in fact the original died long before, and it was either Kirk or Scott that corrects him and states that the original matter is transported as a stream of energy.

      Now I know I'm mixing fiction and fact here, but understand something - I don't like calling the "sect 2" version teleportation any more than you like, but it keeps getting referred to as teleportation. I'd rather refer to it as teleduplication.

      That said - which happens first? Teleportation duplicates of humans, or genetic cloning of humans? Which one becomes closer to what comes to mind from sci-fi when we refer to cloning? :)

      --

      Karma: Chameleon (mostly due to the fact that you come and go).

    18. Re:spooky? by kmac06 · · Score: 1

      No. According to quantum mechanics, two particles in the same state are the same. There is no way of "marking" an electron as electron A, and then following that one. The state describes everything about a particle.

    19. Re:spooky? by kmac06 · · Score: 1

      Quantum cryptography (or more accurately, quantum key distribution) is immune to man in the middle attack, assuming that you have a verifiable (but not necessarily secure!) classical communication channel (which should be pretty easy).

    20. Re:spooky? by caitsith01 · · Score: 1

      two particles in the same state are the same

      This does not imply that two human beings assembled out of particles in the same state are the same person. And furthermore "according to quantum mechanics" does not help your argument.

      Would you argue that two particles in the same state at different points in time are the "same" particle?
      --
      Read Pynchon.
    21. Re:spooky? by kmac06 · · Score: 1

      This does not imply that two human beings assembled out of particles in the same state are the same person.

      Yes it does. Any object can, in principle, be exactly described if the exact quantum state can be determined. I am not suggesting this is likely, or even possible, for something as big and complex as a human.

      And furthermore "according to quantum mechanics" does not help your argument.

      Why? Do you know of a better theory?

      Would you argue that two particles in the same state at different points in time are the "same" particle?

      Difficult to say. I'd say it depends on whether or not you consider time as a parameter describing a state. If you do, then an electron sitting alone does not remain the same particle.

    22. Re:spooky? by caitsith01 · · Score: 1

      Yes it does. Any object can, in principle, be exactly described if the exact quantum state can be determined. I am not suggesting this is likely, or even possible, for something as big and complex as a human.

      I think you are missing my point. They might be identical, but they're not the same person. It is, in a sense, a philosophical question.

      Put it this way. I would never go through a teleporter that would disassemble me, transmit the state of all my particles, and reassemble them at the other end in exactly the same state. There is a significant possibility that "I" would be dead - obliterated - and the person at the other end would be a new person, albeit with my memories, characteristics, and perceptions, but not me.
      --
      Read Pynchon.
    23. Re:spooky? by SirBruce · · Score: 1

      Wouldn't two particles in the same quantum state still have different world lines? So they wouldn't be identical, even if we couldn't tell which came from which line.

    24. Re:spooky? by kmac06 · · Score: 1

      No. The fact that they are completely indistinguishable is what gives rise to Bose-Einstein statistics.

    25. Re:spooky? by CurlyG · · Score: 1

      There is a significant possibility that "I" would be dead - obliterated - and the person at the other end would be a new person, albeit with my memories, characteristics, and perceptions, but not me.

      But how could you tell? And if you couldn't tell why would it matter? It is arguable that nothing in the universe (and certainly no living organism) is exactly the same as itself from one second to the next anyway, and that doesn't seem to bother most people...

      --
      You know they call 'em fingers but I've never seen 'em fing. Oh, there they go.
    26. Re:spooky? by SirBruce · · Score: 1

      You didn't really answer my question. It seems *obvious* two electrons that are put into identical quantum states via experiment nevertheless arrived at that state via different paths. Again, we may not be able to tell which came from which world line, but in the hyperdimensional sense they would not be identical.

    27. Re:spooky? by brunascle · · Score: 1

      hey might be identical, but they're not the same person.
      in quantum mechains, there is no such thing as "the same particle". there is only quantities of particles.

      say you have one hydrogen atom, with one electron. one second later you still have a hydrogen atom and it still has 1 election. you cannot say that its electon is the same as it was before. 1 electron is nothing but a quantity. you cannot say "this electron."

      want proof? keep looking at that electron. poof, it's gone. it has literally disappeared into nonexistence, obliterated by a positron. and what's this, now? a positron and electron pair have appeared out of thin air that look surprisingly like the ones that dissappeared a moment ago, except this was billions of light years away.

      and look again at this electron, which is now occupying a higher orbit around the nucleus of an atom. keep watching. boom, it just dissappeard, and another electron appeared out of thin air occupying a lower orbit than before. and this happened instantaneously.

      also, in your last paragraph you're describing consciousness/sentience. that's a topic for another discussion.
    28. Re:spooky? by brunascle · · Score: 1

      answer me this. if absolutely everything about you was copied and recreated in another location, how could you possibly not be in that new location? if you're not, that means you missed copying something.

    29. Re:spooky? by kalirion · · Score: 1

      What if the original person isn't destroyed in the process (spare me the "this is impossible"s, we're talking hypothetical here.) Both would be the "real thing", but would it be ok to kill one of them since the person is still alive? What if the copy/teleport took place while the person is unconscious, so there is no difference of conscious experience to differentiate the two?

      The Prestige, now there was a movie to make you think.

    30. Re:spooky? by kmac06 · · Score: 1

      Yes, it does seem obvious--it's also not true!

      This is one of the weirdest things to explain about quantum mechanics but I'll give it a shot. Each particle is described by a wavefunction, which describes the probability density*, sort of describing how it is "spread out". This is why you can't describe exactly where a particle is or exactly what it's momentum is. When two particles get close, their wavefunctions overlap, and it is impossible (and really nonsensical!) to describe them separately. In fact, since wavefunctions generally decay exponentially and never go to zero, every electron everywhere overlaps with every other electron, and they all need to be described simultaneously! In practice, of course this amount of overlap can be determined to be infintesimal and can be ignored.

      It's hard stuff to understand without studying it for a few months (or more)...

      *Actually it's the square of the wavefunction that describes the probability density.

  8. Einsteins view at least by jshriverWVU · · Score: 4, Informative
    Albert Einstein described quantum entanglement as "spooky action at a distance" and it relies on the fact that two photons can be created in such a way that they behave as a single object, even if they are separated by large distances. In behaving in this way they are acting as a teleportation machine because any changes to one causes similar changes to the other.

    1. Re:Einsteins view at least by TwilightSentry · · Score: 4, Informative

      IANAphysicist, but from what I know about entanglement, the idea is as follows. Particles (photons, electrons, etc.) do not have some values (eg, spin, charge, etc.) defined until they are observed. The fun happens when you have a process which is guaranteed to produce two identical particles, but does not cause the attributes of those particles to take a value. You can separate the two particles, and when one is observed, you have a guarantee that the other will take the same values, even if there hasn't technically been enough time for information to flow from one particle to the other.

      You can't actually transmit information using entanglement. (From my even more limited understanding, in quantum teleportation, the entanglement is used to extract the quantum state of an object and store it in a photon, which is then sent somewhere else using something like fiber.) You don't control the state of the particle when you first observe it; it is completely random. If you actually change one particle, the two particles are said to "decohere" and are no longer entangled.

      Again, I'm just an interested amateur, so please correct me if I'm wrong.

      --
      How to enable garbage collection on a system without protected memory: #define malloc() ((void *) rand())
    2. Re:Einsteins view at least by Oligonicella · · Score: 1

      "In behaving in this way they are acting as a teleportation machine because any changes to one causes similar changes to the other."

      No, they are acting like a telecommunications machine. If only info is transmitted, no teleportation has taken place.

    3. Re:Einsteins view at least by BungaDunga · · Score: 1

      A voice of sanity! IANAP either, but that's my understanding as well. Makes me grind my teeth whenever people equate entanglement to "Poke one particle and the other one moves instantly!"

    4. Re:Einsteins view at least by adelord · · Score: 2, Informative

      "Poke one subatomic-particle and the other one instantly changes spin!" Grind away brother, it doesn't make it any less true.

      --
      Eugene Debs: "Money constitutes no proper basis of civilization"
    5. Re:Einsteins view at least by BungaDunga · · Score: 1

      Yes, but it doesn't let you watch one particle and wait for it to change instantly when someone perturbs the other one. That would send a signal faster than light.

    6. Re:Einsteins view at least by Orphaze · · Score: 1

      This is my understanding as well, but should this be true, why is this so important? I mean, if you create two identical particles and observe the spin/charge/widgets of one, then observe the other, surely you would not expect it to be different, would you?

    7. Re:Einsteins view at least by counterfriction · · Score: 1

      You can't actually transmit information using entanglement. IAANP (...yet; two more years and I won't require this disclaimer), but let me say, there is indeed a way to transmit information using entanglement. In quantum crypto it's possible to transmit what is essentially a one-time-pad encryption key using entangled photons. The two communicators agree in advance on a certain attribute to investigate (and what the resultant state shall represent in binary). Then as either of the communicators "read" their photons, they will obtain the same key as their colleague regardless of when or where said colleague "reads" their own.

      There's a catch, though. In order for the photons to be entangled, they (AFAIK) must be created in the same timespace coordinate. Thus, assuming the communicators are not in the same position, the photons still must be physically sent to their respective recipients. Nonetheless, the information isn't "sent" (if you will allow it) until the communicators have "read" the particles.
      --
      Sig free's the way to be.
    8. Re:Einsteins view at least by TwilightSentry · · Score: 1

      The funky thing is that quantum uncertainty states that a particle doesn't have a certain attribute until it is observed; it's more than just not knowing the value of that attribute.

      --
      How to enable garbage collection on a system without protected memory: #define malloc() ((void *) rand())
    9. Re:Einsteins view at least by wurp · · Score: 1

      I am not a physicist either, but I do have a BS in Physics.

      You are almost exactly right... it is not that the two particles have identical properties, it is that they must have complementary values for properties that are conserved.

      For example, the phase of two photons created from an electron & positron collision must cancel out to no phase. I don't remember if that means that they are 90 degrees out of phase or have the same phase... but at any rate, the phase is also indeterminate until measured. If you use two polarized lenses, one to measure the phase of each photon, at distant points, then and if both photons through the lenses, you both know what phase the other measured.

      If you randomly flip the lenses between two orientations that are 90 degrees from one another, and tell each other when the photons get through, then you record the orientation each time the photon got through. Now you both have a shared random key for a one time pad.

    10. Re:Einsteins view at least by FrangoAssado · · Score: 1

      "Poke one subatomic-particle and the other one instantly changes spin!"

      No, it's more like "Poke one sub-atomic particle and the spin of the other one is instantly defined".

      I recommend for anyone trying to understand this to read about Bell's Inequalities. I found the Wikipedia article on it very confusing (actually, it's good for getting the big picture, but the explanation of the details assumes vast prior knowledge). I finally understood it reading this:

      It's a little heavy on the math (well, just a little bit of linear algebra), and starts from the very beginning. In the end of the lecture (section 5) it has an experiment that shows how this "spooky action" works. Be warned that it has a couple of typos in some equations -- but if you follow closely from the beginning, they're not hard to spot.

      To get a real explanation about quantum teleportation (which seems to be what the article is about), see the section 1.1 of this one:

      But that requires a little more math (tensor products).

      These both seem to be part of this quantum computing course:

    11. Re:Einsteins view at least by StrahdVZ · · Score: 1

      So its the whole "if a tree-shaped photon falls in a forest of neutrons and nobody is around to observe it" thang? If nobody observes it, not only does it not make a sound, it also hasn't fallen, doesn't spin, and isn't even shaped like a tree.

    12. Re:Einsteins view at least by StrahdVZ · · Score: 1

      Sorry I mixed up photon with proton... I'm an ignoramus but you get my drift though?

    13. Re:Einsteins view at least by TwilightSentry · · Score: 1

      Basically, we say that it's in the "superposition" between falling and not falling. Once it's observed, however, it will take on the attribute of having fallen or not having fallen...

      For a more detailed (but slightly technical) discussion, you might look at Wikipedia's article on Schrodinger's Cat, a thought experiment designed to illustrate the concept.

      --
      How to enable garbage collection on a system without protected memory: #define malloc() ((void *) rand())
  9. Matter? Yeah, right. by $RANDOMLUSER · · Score: 0, Flamebait

    Have these guys who wrote the summary heard of the Heisenberg uncertainty principle? It was in all the papers.

    --
    No folly is more costly than the folly of intolerant idealism. - Winston Churchill
    1. Re:Matter? Yeah, right. by ObjetDart · · Score: 3, Informative
      Have these guys who wrote the summary heard of the Heisenberg uncertainty principle? It was in all the papers.


      Sure they have. That's why all the Star Trek transporters employ "Heisenberg compensators". Duh.

      --
      I read Usenet for the articles.
    2. Re:Matter? Yeah, right. by Anonymous Coward · · Score: 0

      Big deal, they just need to perfect the Heisenberg compensator and they are good to go.

    3. Re:Matter? Yeah, right. by jollyreaper · · Score: 1

      Have these guys who wrote the summary heard of the Heisenberg uncertainty principle [wikipedia.org]? It was in all the papers. No, they already thought of that. http://en.wikipedia.org/wiki/Heisenberg_compensato r
      --
      Kwisatz Haderach
      Sell the spice to CHOAM
      This Mahdi took Shaddam's Throne
    4. Re:Matter? Yeah, right. by Anonymous Coward · · Score: 0

      Teleporting a quantum state doesn't require you to measure it, so the Heisenberg uncertainty principle doesn't apply. In Star Trek they use an Heisenberg compensator only because they buffer your pattern in non-quantum RAM.

    5. Re:Matter? Yeah, right. by Cyberax · · Score: 1

      Quantum teleportation allows to create a PERFECT copy of a particle, but the quantum state of the source particle is destroyed as a result. So we sidestep Heisenberg because we do not perform any measurement.

    6. Re:Matter? Yeah, right. by Chris+Burke · · Score: 1

      I heard the "Heisenberg Compensator" was really just a setting on the "Plot Hole Compensator", right next to "Inertial Dampener" on the dial.

      --

      The enemies of Democracy are
    7. Re:Matter? Yeah, right. by Jamu · · Score: 1

      I've always thought that teleporters would make a lot more sense if they didn't have Heisenberg compensators. It would mean they can only transfer the quantum state without examining it in detail, and therefore can't make copies of people. With a Heisenberg compensator they can make copies of people. And if that's the case then they aren't really teleporters at all, what they really do is make copies of people and kill the originals! Which must be the case when you think about the difference between "teleportation" and just making a copy.

      --
      Who ordered that?
    8. Re:Matter? Yeah, right. by Anonymous Coward · · Score: 0

      Actually, I remember an episode where they found another Riker (this one still a Lieutenant) marooned on a space station for ten years. Apparently exactly what you described happened, except a malfunction caused the Riker on the station not to de-materialize, leaving him still on the station and the "copy"* safely aboard whatever starship he was serving on at the time.
      What really sucked was that the "copy" Riker was immediately promoted for his actions aboard that space station, while the original was left alone for 10 years.

      *OK, I know that technically by this theory that the "original" was in fact an n-generation copy of the truest** Original Riker, which makes the whole thing kinda weird. At least it wasn't like the movie Multiplicity, where the clone of the clone wasn't quite as good as the original...

      **And what do you know, "truest" just happens to be the CAPTCHA for this post.

    9. Re:Matter? Yeah, right. by Digitus1337 · · Score: 1

      How does said compensator work? Well, you can either have the explanation or the compensator, never both.

  10. Call me dumb... by morgan_greywolf · · Score: 5, Insightful

    But it seems to me that 'transporting' data, whether or not using quantum entanglement, isn't quite the same thing as transporting matter and really brings us no close the 'transporter' technology as seen on Star Trek.

    We can already transport data through space without using quantum entanglement at all -- it's called radio.

    1. Re:Call me dumb... by RealGrouchy · · Score: 2, Funny

      But it seems to me that 'transporting' data, whether or not using quantum entanglement, isn't quite the same thing as transporting matter and really brings us no close the 'transporter' technology as seen on Star Trek.

      It's actually a far more advanced version of the Star Trek technology.

      Say, for example, that you are in orbit and someone on the surface wants to know what colour shirt a crewman is wearing.

      With the inefficient Star Trek model, you'd have to send the crewman down, wearing the shirt.

      With this data-teleportation model, you only have to send the message "The crewman is wearing a red shirt."

      Unfortunately, since he didn't actually go on an away mission, you'd have to find another way to kill him off.

      - RG>
      --
      Hey pal, this isn't a pleasantforest, so don't waste my time with pleasantries!
    2. Re:Call me dumb... by digitalderbs · · Score: 3, Funny

      Exactly right. The hurdle for teleportation is the conversion of data and energy into matter. In theory, a Star Trek starship could beam crew members over 250 years time using 802.11g. (assuming, of course that a average human being contains exactly 55.8 petabytes worth of data).

    3. Re:Call me dumb... by MontyApollo · · Score: 1

      Didn't one of those books say the tranporter is the least plausible of any of Star Trek's technology? Not only would there be huge amounts of data to transfer, but if you were beaming somebody up you would have to resolve the location of every molecule from hundreds of miles away. It seems like it would be a fountain of youth as well - just replace the old cells with fresh ones.

    4. Re:Call me dumb... by nine-times · · Score: 2, Insightful

      It seems like every couple weeks, someone else writes an article or reads on article on this sort of teleportation and posts it all over the Internet. "Omigawd, we are SOOOO close to having Star Trek transporters!!!"

      And then everyone has to explain, "No, we really aren't." This really doesn't bring us any closer to being able to break material objects down to nothing (effectively) and simultaneously rebuild them perfectly at a far-away location.

      Could we all just stop this now? This article doesn't have any significant depth or any clear/new information. Quantum entanglement has been know for a while, but (and I am not a physicist, but AFAIK) there's never been any way to use it to transmit data in a way that breaks the speed of light. That would be a discovery, but it still wouldn't be moving actual matter across distances. It wouldn't be deconstructing atoms, molecules, or whole organisms on one side and rebuilding them on the other. So please, no more stores about how "Star Trek transporters are just around the corner!"

    5. Re:Call me dumb... by Phylarr · · Score: 1, Informative

      We can already transport data through space without using quantum entanglement at all -- it's called radio.

      The key difference is that quantum teleportation can transmit data at speeds faster than the speed of light.

      I think a lot of the verbiage used to talk about quantum physics/quantum computation is misleading and was poorly chosen. There is no reason to call it "teleportation" when they're only sending data and not matter. And there's certainly no reason to keep quoting Einstein's "spooky" for any of these summaries. It's all just BS that detracts from the actual science, which is pretty interesting as long as you don't come into the study of it expecting to find Star Trek-type teleporters.

      --
      "Choosing to refrain from producing another person demonstrates a profound love for all life" [vhemt.org]
    6. Re:Call me dumb... by digitalderbs · · Score: 1

      My figure was for a low resolution human. If you're tracking molecules, then it would be in the thousands of yottabytes (based on a 70kg human and the MW of water). We'd definitely need an upgrade in transmission protocol.

      on a serious note.. simply replacing "old" molecules with "fresh" molecules wouldn't make you younger. You'd have to go through and change various molecules, like removing the effects of oxidative damage and replace damaged/"erroneous" bases in DNA.

    7. Re:Call me dumb... by khayman80 · · Score: 4, Interesting
      Actually, I recently wrote a paper on quantum teleportation, and I was surprised to find that teleporting a human being with current telecom equipment would take longer than the age of the universe.

      There are lots of other problems, though. First of all, they can't even teleport single photons yet. All they can do is teleport a single degree of freedom of a single photon, such as polarization or transverse spatial state. Secondly, scaling the teleportation process up to macroscopic objects would require isolating the object to be teleported from its environment in order to preserve quantum coherence. I imagine vacuum exposure would make this procedure uncomfortable for... you know... living things.

      It should be noted that quantum teleportation is not able to transfer matter or energy from transmitter to receiver. All the protocol can do is transfer the quantum state of a particle (or, in the future, groups of particles) from transmitter to receiver. That doesn't mean that humans can't be teleported, though; the receiver would simply keep a stock of raw materials such as carbon, hydrogen, calcium and oxygen atoms out of which to reconstruct the person.

      For the moment, quantum teleportation bears little resemblance to its sci-fi namesake. It's still useful for sending secure messages because of one bizarre property of teleportation: a teleported state can be sent between points A and B without ever existing between those points. It's also the best way to network quantum computers.

    8. Re:Call me dumb... by MontyApollo · · Score: 1

      I did actually say fresh "cells" though because of your exact argument. I thought it through a little bit ;)

      It does seem that if you could re-form molecules based upon one's "pattern", you could modify your pattern first and create whatever you want. Younger, stronger, and super-sized private parts.

    9. Re:Call me dumb... by JeanPaulBob · · Score: 4, Funny

      Actually, I recently wrote a paper on quantum teleportation, and I was surprised to find that teleporting a human being with current telecom equipment would take longer than the age of the universe.

      Oh, I dunno. Six thousand years doesn't seem like that long to me.

    10. Re:Call me dumb... by autophile · · Score: 4, Insightful

      It should be noted that quantum teleportation is not able to transfer matter or energy from transmitter to receiver. All the protocol can do is transfer the quantum state of a particle (or, in the future, groups of particles) from transmitter to receiver. That doesn't mean that humans can't be teleported, though; the receiver would simply keep a stock of raw materials such as carbon, hydrogen, calcium and oxygen atoms out of which to reconstruct the person.

      Thanks, but no thanks.

      Proof:

      Scan yourself down to the most fundamental level (regardless of what that is), and build an exact duplicate without destroying the original. Press the start button on the duplicate, assuming instantaneous duplication and starting. Since the original's consciousness has maintained continuity in the original, even if the duplicate is an exact copy of the original's state, it cannot be continuous with the original's state because the duplicate exists at a different location and time. (I considered using "space-time locus", but it's difficult enough talking about this without resort to high-falutin' words :)

      Therefore, the "you" that existed prior to duplication is the "you" of the original, and not the "you" of the duplicate. "You" suddenly don't perceive two different realities, one from the POV of the original, and one from the POV of the duplicate.

      The conclusion is that if someone destroyes the original, "you" die. Really die. The duplicate may have all your memories and skills, and will think it is the original, but it is not.

      Really, the only way teleportation (or brain-to-computer transference) could work is if each individual part (for some definition of "part") were duplicated, placed in sync with the original, and then the original part destroyed. Since consciousness consists of the whole and not the parts (assuming we're not going to invoke the supernatural), the consciousness remains continuous with only one instantiation at any one time.

      I've given this some thought, since I hope to download in 2045 :)

      --Rob

      --
      Towards the Singularity.
    11. Re:Call me dumb... by kabocox · · Score: 1

      But it seems to me that 'transporting' data, whether or not using quantum entanglement, isn't quite the same thing as transporting matter and really brings us no close the 'transporter' technology as seen on Star Trek.

      We can already transport data through space without using quantum entanglement at all -- it's called radio.


      Well, you need a replicator on the other end. You get a clone coming out the other end. Radio is limited to the speed of light as we currently know it. This quatum entanglement magic may not be limited by the same factors. You still have to rig up a replicator to get a clone out the other end, but hey, you've just "transported"/"cloned" something faster than you could previously.

      Think using ships that can only go 1/1000th the speed of light to reach neighboring stars, but with this stuff connected back to the home world so in 4-5K years if they get to where they are going, and if the orginal equipment/society is still around on Earth (and actual FTL ships haven't been developed) it would be possible to bring the colonies instantly up to date with 4-5K years of homeworld tech advancement. I don't know if you could actually use this stuff to communicate while travelling that 1/1000th lightspeed, or what actual range restrictions would apply.

    12. Re:Call me dumb... by khayman80 · · Score: 2, Interesting
      Actually, quantum teleportation destroys the original state in the act of teleporting it. This is required by the no-cloning theorem of quantum information.

      On the other hand, the rest of your post makes very little sense to me. As long as the teleportation process is carried out at sufficient resolution to capture all the relevant details of my consciousness, and I emerge on the receiver pad with all my memories and personality, I don't understand how it could be anything but successful. If you're referring to the psychological strain of instantly seeing a new room... maybe all teleporter rooms can look exactly the same, down to the smallest perceptible detail.

    13. Re:Call me dumb... by gardyloo · · Score: 1

      That doesn't mean that humans can't be teleported, though; the receiver would simply keep a stock of raw materials such as carbon, hydrogen, calcium and oxygen atoms out of which to reconstruct the person. Whoo. I can just see the teleporters costing about $50 each, and the inkjet cartridges which go in them being, well, a bit more.
    14. Re:Call me dumb... by suv4x4 · · Score: 2, Interesting

      Really, the only way teleportation (or brain-to-computer transference) could work is if each individual part (for some definition of "part") were duplicated, placed in sync with the original, and then the original part destroyed. Since consciousness consists of the whole and not the parts (assuming we're not going to invoke the supernatural), the consciousness remains continuous with only one instantiation at any one time.

      Probably, but consider this: can you really prove your consciousness remains continuous every time, say, you go to sleep and wake up the next morning.

      The same paradox occurs: you think you are the same consciousness, but there's no way to know.

      People take enough risk to die already by using a much simpler transportation device, a car. Maybe this invention is distant enough in the future to allow for our values to change, and realize that in the big scheme of things, it doesn't matter if you're an instant and perfect copy of yourself, using "generic energy" for the process every time you go back from work.

      Of course not many people from today would accept such a destiny ("wake up, honey and get ready to die in the teleporter to work").

    15. Re:Call me dumb... by Anonymous Coward · · Score: 0

      Matter is mostly data. You can have a big truck full of 'inchoate material bits'. In this truck is an enormous amounts of material, enormous amounts of material. At one end of a series of tubes, you can place an order for something, like a movie, and when the data gets teleported to the other end, you apply the information in the data to construct the movie out of a truck filled with the enormous amounts of material. You can start this process on Friday morning at 10am, and the delivery charge is free, if you use the series of tubes, if they aren't filled up, you can have the movie by Monday afternoon.

    16. Re:Call me dumb... by Anonymous Coward · · Score: 0

      The key difference is that quantum teleportation can transmit data at speeds faster than the speed of light.

      No. You can't move data faster than the speed of light. Just, no.

    17. Re:Call me dumb... by Threni · · Score: 1

      > Not only would there be huge amounts of data to transfer, but if you were beaming somebody up you would have to resolve the
      > location of every molecule from hundreds of miles away

      You'd also have to kill the guy you just copied and sent, which means changing the law and convincing someone that it's ok to kill him because he's somewhere else as well.

    18. Re:Call me dumb... by Pendersempai · · Score: 1

      No need to get all religious about it. If the "you" that shows up on the other end behaves identically, who's to say it's not really you? If and when the technology comes to fruition, your reservations will come to be seen as the same kind of quaint superstition as the belief of certain primitive cultures that being photographed extracts your soul.

    19. Re:Call me dumb... by Anonymous Coward · · Score: 0

      The conclusion is that if someone destroyes the original, "you" die. Really die. The duplicate may have all your memories and skills, and will think it is the original, but it is not.

      That's a totally pointless semantic argument. What practical difference does it make?

    20. Re:Call me dumb... by phozz+bare · · Score: 1

      You're just arguing about the order in which things occur. It doesn't matter if the original is destroyed along with the creation of the duplicate, or a few seconds after. You're still dead. The duplicate will either be a conscious human or a Philosophical Zombie, there's no way to tell. Your friends and family will still think it's you, but you will have the same experience as a person dying.

    21. Re:Call me dumb... by Anonymous Coward · · Score: 0

      Just because you can transmit a description of the physical body doesn't mean you can transmit an image of the mind. If the phenomenon of consciousness itself relies on the brain somehow digging into the quantum level for nondeterministic computation ability, as some believe, then maybe it's too complex to be transmittable via quantum transference.

    22. Re:Call me dumb... by phozz+bare · · Score: 2, Insightful

      It makes no practical difference. Do you avoid death in your daily life? Why? If you knew that you could do something that would appear, from your perspective, to be exactly the same as really dying, but would leave a replica of you living from the perspective of others, would you do it?

    23. Re:Call me dumb... by ceejayoz · · Score: 1

      The conclusion is that if someone destroyes the original, "you" die. Really die. The duplicate may have all your memories and skills, and will think it is the original, but it is not.

      Okay, let's assume that for a moment. Will anyone actually give a shit?

      The components of my body already renew themselves. What substantive difference does it make to replace it all at once instead of bit by bit?

    24. Re:Call me dumb... by Ant+P. · · Score: 1

      Okay, let's assume someone builds a teleporter that works "right", in the way you describe it.

      How would you test it to make sure it works?

    25. Re:Call me dumb... by alanoneil · · Score: 1

      That was the best explanation of the point being attempted. Seriously, before this particular gem I was in a fog as to why this guy was getting his panties in a quantum twist over leaving p-zombies everywhere. I wouldn't mind being a p-zombie... but would I want to experience death?

      Then that made me ask "what is death" in this context... say the teleporter does an instant quantum "deletion" of your particles, all at once. Then, can it also preserve the electrical currents in the brain? What would it "feel" like to have your brain deleted in an instant? Would it hurt? Would it be scary? Unfortunately, I think that by definition this thought experiment can have no answer unless we invoke a supernatural. My current thought is that death (of this type) is nothing more than a (sudden) sleep, and shouldn't hurt or harm the "soul". So I don't think I have any problem with our theoretical teleporters assuming they are perfect in reproducing a functional p-zombie who is convinced s/he still has a soul.

      Perhaps that's why some (many?) scientists/mathy types defend their belief in an afterlife-- Let's call it the equivalent of a complex number plane, that is more complete than our current universe. If you believe in "i think, therfore i am" and that your consciousness has some sort of higher order meaning, then I can see why you would want to believe in a meta-state, in which someone can let you examine and reflect over your experience of dying. I for one am curious, though I'm going to wait a fewmany decades before trying it out ;)

      --
      --
    26. Re:Call me dumb... by autophile · · Score: 1

      It makes no practical difference. Do you avoid death in your daily life? Why? If you knew that you could do something that would appear, from your perspective, to be exactly the same as really dying, but would leave a replica of you living from the perspective of others, would you do it?

      Do I avoid death every day? I certainly avoid certain death, which is what I have convinced myself "destructive copying" is. Also, why would I submit to dying regardless of whether or not a copy is made? Why would I care about the perspective of others? It's not them doing the dying!

      --Rob

      --
      Towards the Singularity.
    27. Re:Call me dumb... by autophile · · Score: 1

      Probably, but consider this: can you really prove your consciousness remains continuous every time, say, you go to sleep and wake up the next morning.

      Yes, I can, as long as I can prove that all the parts of me remain functionally continuous as well. If I can't prove that, then no, my consciousness is not continuous, and hence when the thing occupying my bed wakes up, it isn't me.

      I say functionally continuous because cells die all the time, but are replaced in their function.

      Again, without resort to the supernatural, I have (admittedly unilaterally) declared "consciousness" to be that which is formed by all the parts of me in their configuration and interaction.

      --Rob

      --
      Towards the Singularity.
    28. Re:Call me dumb... by autophile · · Score: 1

      As long as the teleportation process is carried out at sufficient resolution to capture all the relevant details of my consciousness, and I emerge on the receiver pad with all my memories and personality

      Oops, you've just commited an error where you assume what you set out to prove. You've referred to "I" as emerging on the receiver pad. Without defining "I", you can't say exactly what has emerged on the receiver pad.

      My requirement is not only that the original is destroyed, but also that the original remains in uninterrupted, synchronized communication with the duplicate. That is, consciousness is being carried out by relying on *both* physical platforms at *both* origin and destination. Because if there is ever an independent consciousness produced, then it cannot be the original consciousness, else said consciousness would experience more than one reality at a time.

      --Rob

      --
      Towards the Singularity.
    29. Re:Call me dumb... by Chandon+Seldon · · Score: 1

      You're right that you have to be careful that your teleporter isn't just a "fax machine with integrated shredder". On the other hand, just because it's easier to conceive of the fax machine doesn't mean that actual matter teleportation (i.e. where matter is moved rather than destroyed & recreated) isn't possible. Talking about "quantum teleportation" as a precursor to sci-fi style teleportation does sound like technobabble, but I don't know enough about physics to be sure that there aren't any location hacks.

      --
      -- The act of censorship is always worse than whatever is being censored. Always.
    30. Re:Call me dumb... by skynexus · · Score: 1

      I am inclined to agree with you and would also add that in practice, both quantum teleportation and the no-cloning theorem exacerbates your point by establishing that creating identical copies of an object is actually impossible. Hence, if teleportation means reconstructing your copy, then not only would it be speculative to say that you were transported, it would also be wrong according to quantum mechanics. More correctly, one could posit that technology may allow a version of you to be reconstructed elsewhere, but again, that would not be you, so what does that tell us about the idea of destroying the original?

      Still, if we ignore the problem (or impossibility) of creating exact duplicates, destroying the original would not be less an act of killing whether a duplicate was created or not. Perhaps the knowledge that a duplicate exists would make one feel more comfortable about dying, and some may even convince themselves that they never really die. Kind of reminds me of how so many people find a deeper meaning in life when they have a child. Going further, who is to say that (the original) dying is such a big problem? Alternatively, who is to say it isn't?

      Further still, if we ignore the problem of dying (assuming it is a problem), and pretend that teleportation "transported" you in space and time, there would still remain a slight uncertainty with regard to who it is that arrived at the other end. That is a very old philosophical question known as Theseus' paradox which seems particularly appropriate in this context. Even if this paradox isn't a cause of confusion in normal everyday life (a river is still the same river no matter what time of the day it is), it would be hard to ignore the fact that upon arrival you would essentially be a "completely new person" (insofar matter is concerned).

    31. Re:Call me dumb... by Frizzle+Fry · · Score: 1

      My figure was for a low resolution human. If you're tracking molecules, then it would be in the thousands of yottabytes (based on a 70kg human and the MW of water). It compresses really well though.

      --
      I'd rather be lucky than good.
    32. Re:Call me dumb... by myrdos2 · · Score: 1

      I've reached the same conclusion, but it is in fact false. With quantum entanglement, you have two particles with the exact same quantum properties. So, big deal.

      But it IS a big deal. If you change one, the other one is affected. It's like the universe is made out of badly written C code. If you have two pointers with identical values, they point to the same memory address, and you only have one real variable. If you have two particles with identical quantum properties, changing one affects the other.

      So you and your clone would quite literally be the same person, if every particle in your bodies had the same quantum state. Now, chew on this: what happens if you kill the original? YOU, the original YOU, will still exist, but in a different location.

      Nifty! Of course, you can't actually send information using quantum entanglement, so you'd have to send the particles to the new location manually. Might as well just send yourself manually and avoid all this. See, with quantum encryption, you measure the value of your particle, and at that moment know what the remote particle's state is. Measuring the state alters it in a random way. So if you receive a radio pulse and your particle's state is 1, you got a 1. And if the state was 0, it's a zero. No way for an eavesdropper to figure it out, the pulses don't contain any data, but you don't have instantaneous communication.

    33. Re:Call me dumb... by professorfalcon · · Score: 1

      Poor Harry Kim.

    34. Re:Call me dumb... by Anonymous Coward · · Score: 0

      Wow, so you're saying the Aliens that created us, imbued us with copy protection? No fair, a DVD is one thing, but I oughta own the rights to me!

    35. Re:Call me dumb... by Bo'Bob'O · · Score: 1

      What I wonder is, lets say you were frozen taken molecule by molecule and moved, "by hand" from one place to the other and reassembled. It would be "You" just as much as if your limb was detached and reattached whole the same way, right?

      The question is, if you went through and replaced your atoms, where you are, right now, all at once, would you still be "you" or just a copy of you in the exact same place? If not, what if you did it one atom at a time, slowly, over the course of a decade? You should still be "you" then, right? Is it just a matter of how fast its done then? Where is the point where you are just a copy of yourself with the original thrown away?

      And no, this post was not made with the aid of THC c.c

    36. Re:Call me dumb... by xhydra · · Score: 1

      "55.8 petabytes" I think the average human bieng would'nt contain that much data. 1. Encode the telepotee into XML . 2. Because the human being is made up of repetitive cell structures which are essentially identical the resultant XML data would compress very well. 3. I would suggest SOAP/HTTP as the teleportation protocol. Enclose him in a SOAP envelope, compress and encrypt. The data should not come up to a couple of megabytes.

      --
      "Drawing closer to world domination, keystroke by keystroke."
    37. Re:Call me dumb... by Anonymous Coward · · Score: 0

      I have an answer to the "Quantum data required to teleport would take billions of years to transmit" problem...

      Winzip.

    38. Re:Call me dumb... by Subacultcha · · Score: 2, Funny

      Okay, let's assume that for a moment. Will anyone actually give a shit? Well, there was one guy who cared, but he'd be gone by then. There's another guy who looks just like him, though, and he's totally cool with it.
    39. Re:Call me dumb... by F34nor · · Score: 1

      Neither you nor any other human has ever proven through any form of logic or philosophy that reality is not subjective; period, full stop. So how can you prove that any moment of existence is anything but a instant with nothing preceding it or following it. Believing the world is real and that one thing follows another is no different than believing the aliens came down and fucked the monkeys or that Jesus rose from the grave. Not that it doesn't help with daily life to buy into it (I do) but when you get to the level of navel gazing needed for teleportation discussion you got to face the navel of all navels. Either that or be a Taoist.

      Or join my new religion. Now that S. Hawkins agrees that the whole universe is a computer and that data can escape from a black hole I know how god functions. The whole universe is the computer that allows god to be omni-present. Suck on that jackasses I just figured out the answer to life the universe and everything.

    40. Re:Call me dumb... by m50d · · Score: 2, Insightful
      Since the original's consciousness has maintained continuity in the original, even if the duplicate is an exact copy of the original's state, it cannot be continuous with the original's state because the duplicate exists at a different location and time. (I considered using "space-time locus", but it's difficult enough talking about this without resort to high-falutin' words :)

      Do it while you're asleep. You go to sleep in a (wheeled) hospital bed in a room. Two of you wake up in two identical beds in another room. How can you tell which one's which?

      --
      I am trolling
    41. Re:Call me dumb... by Himring · · Score: 1

      Scan yourself down to the most fundamental level (regardless of what that is), and build an exact duplicate without destroying the original. Press the start button on the duplicate, assuming instantaneous duplication and starting.

      And pray no fly got stuck in there with ya....

      --
      "All great things are simple & expressed in a single word: freedom, justice, honor, duty, mercy, hope." --Churchill
    42. Re:Call me dumb... by deadweight · · Score: 2, Funny

      Didn't Dr. McCoy (Bones) have exactly this reservation about using the transporter?
      He wasn't sure if the original soul got transported along with the body.
      Capt Kirk: Hi there St. Peter! You may not know it, but I am a famous starship captain. You're not going to hold the green alien chick thing against me, are you?
      St. Peter - points to about 400 Capt. Kirks standing around - You again!

    43. Re:Call me dumb... by entrigant · · Score: 1

      Allow me to dumb it down for you:

      You die.
      Your copy lives.

      End of story.

      Another person is another person, whether it is an exact copy of you or not. You don't emerge on the receiver pad. You are dead. You have ceased to exist. Your copy is constructed on the receiver pad thinking it is you.

    44. Re:Call me dumb... by foniksonik · · Score: 1

      If you're referring to the psychological strain of instantly seeing a new room... maybe all teleporter rooms can look exactly the same, down to the smallest perceptible detail.


      This would be no more straining on people than putting them under for surgery, then waking them up an hour later in a new room. Also people lose consciousness all the time, just pass out... then their buddies pull them out of the bar and into the car. They wake up later on their front lawn in a dress and pantyhose... apparently suffering nothing worse than a headache.

      I suspect that the experience of teleporting will be less straining than either of these examples.

      --
      A fool throws a stone into a well and a thousand sages can not remove it.
    45. Re:Call me dumb... by AttilaSz · · Score: 1

      I'd lure a particularly annoying in-law into it.

      --
      Sig erased via substitution of an identical one.
    46. Re:Call me dumb... by AttilaSz · · Score: 1

      Going further, who is to say that (the original) dying is such a big problem? Alternatively, who is to say it isn't?
      Aside from deep philosophical questions, there are some not-so deep questions of legal nature. If the original me isn't destroyed, does the copy get to claim half (or all!) of my private property? Does it inherit my citizenship with all rights and obligations? (In particular, can we both vote and be counted as two votes?) Would it have a separate SSN?

      Further still, if we ignore the problem of dying (assuming it is a problem), and pretend that teleportation "transported" you in space and time, there would still remain a slight uncertainty with regard to who it is that arrived at the other end.
      Even if it were identical to you who remained in the source teleport (and assuming the original isn't destroyed), at that very moment it'd start to diverge mentally, being subject to different external influences. The longer the two consciousnesses operate separately, the more they diverge up to the point you'd no longer consider them the same person, but rather two persons who happen to be sharing common memories on a very intimate level of detail up to the point of teleportation.
      --
      Sig erased via substitution of an identical one.
    47. Re:Call me dumb... by Anonymous Coward · · Score: 0

      Do you avoid death in your daily life? Why? If you knew that you could do something that would appear, from your perspective, to be exactly the same as really dying, but would leave a replica of you living from the perspective of others, would you do it?

      What is "my perspective" vs. "others"? I don't believe in an afterlife. There are two copies of me: one suddenly and painlessly ceases (and thus can't really complain) and one lives on, also without pain. "My perspective", by any reasonable definition, is that I have transported from one place to another. I have not died - my consciousness is living on. You are considering me-2 to be an "other", and I am considering me-2 to be "me".

      This is what I mean by totally pointless semantic argument. What I see after the teleportation is having teleported.

    48. Re:Call me dumb... by dizzydogg · · Score: 1

      There is no way the total makeup of a person could be reduced to "a couple megabytes", the human genome alone is made up of 3.2 billion base pairs, then you would also need to store the exact makeup, charge and location of every cell in the human brain, as well as the current state of every cell in your body, also the chemical makeup of every chemical flowing through your body. Also, while much of it would be repeated, many of the cells are of different shape/size/age. Just storing the positions of all the pieces would take up a ridiculous amount of space, no matter what compression is used.

  11. When the day come... by __aaclcg7560 · · Score: 1

    We can beam William Shatner's ashes out into space without making a mess on the ground.

    1. Re:When the day come... by LWATCDR · · Score: 4, Funny

      I bet he would really hate that since he is still alive.

      --
      See my blog http://ilovecookes.blogspot.com/ for light hearted technical information.
    2. Re:When the day come... by Opportunist · · Score: 2, Funny

      Given the way he speaks, I find a 5 stage rocket more fitting.

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    3. Re:When the day come... by AttillaTheNun · · Score: 5, Funny

      I vote for beaming William Shatner into space now. Why wait for ashes?

    4. Re:When the day come... by __aaclcg7560 · · Score: 0, Troll

      You're right. It'll be years before scientists can figure out how to beam his galactic-sized ego into space.

    5. Re:When the day come... by Opportunist · · Score: 1

      Whoops. Ok, didn't take that even into account.

      Think Russia might reactivate their Nova program?

      --
      We used to have a Bill of Rights. Now, with the rights gone, all we have left is the bill.
    6. Re:When the day come... by maxume · · Score: 1

      It would probably just be easier to move Earth.

      --
      Nerd rage is the funniest rage.
    7. Re:When the day come... by Spudtrooper · · Score: 1

      You mean because he's a rocketman?

    8. Re:When the day come... by Anonymous Coward · · Score: 0

      Because he would echo round the badlands and eventually come back in a transporter incident on the original Enterprise. Archer wouldn't appreciate a second captain hanging around.

    9. Re:When the day come... by Oktober+Sunset · · Score: 1

      but by the time they invent teleportation, he will defiantly be dead.

    10. Re:When the day come... by Drantin · · Score: 1

      defiantly? ...So he'll be refusing to go go through the pearly gates/cross the river Styx by proclaiming himself alive? ...Or will he still be here just claiming that he isn't?

      --
      Actio personalis moritur cum persona. (Dead men don't sue)
    11. Re:When the day come... by zippthorne · · Score: 1

      but by the time they invent teleportation, he will defiantly be dead.


      He'll sure show them.
      --
      Can you be Even More Awesome?!
    12. Re:When the day come... by john83 · · Score: 1

      I vote for beaming William Shatner into space now. Why wait for ashes? Two words: Denny Crane.
      --
      Strange women lying in ponds distributing swords is no basis for a system of government.
  12. IndependEnt! by badasscat · · Score: 1, Insightful

    The Independant

    Ugh... it's "The Independent". Now we can't even copy the names of publications correctly without misspelling them, even when there is a giant logo with the correct spelling right in front of us and numerous other text versions on the page? It's called highlight/ctrl-c, people!

    The whole ent/ant thing is there/their/they're for this decade, and obviously a pet peeve of mine. Get it through your heads; there's no such thing as an "independant". An independent is not something you wear around your neck.

    Anyway, to get back on-topic, is it just me or the idea of teleporting "data" 89 miles not very impressive? I realize it's probably poor wording, but I'm sure once I click the "submit" button here, this data's going to be instantly "teleported" all over the world!

    1. Re:IndependEnt! by blueturffan · · Score: 1, Funny

      -1 Pendantic

    2. Re:IndependEnt! by dlthomas · · Score: 1

      "It's called highlight/ctrl-c, people!" ... not where I come from.

    3. Re:IndependEnt! by Belacgod · · Score: 1

      -1 Pedentic.

    4. Re:IndependEnt! by dreamchaser · · Score: 3, Funny

      You mean -1 Indepedantic, don't you?

    5. Re:IndependEnt! by Anonymous Coward · · Score: 0

      Don't you mean Pendentic?

    6. Re:IndependEnt! by rrohbeck · · Score: 1

      >Get it through your heads; there's no such thing as an "independant".

      But there's a boatload of people who think "speling don't mater."

      Where I come from, you're considered illiterate if you can't spell. But around here it really doesn't seem to matter. A sales rep just confused "their" and "they're" in a presentation in front of a customer - 2 times in a row. Maybe that's why he's making the big bucks.

  13. I volunteer by Anonymous Coward · · Score: 0

    Steve Ballmer as Andre Delambre, it'll be an improvement.

  14. Bad Summary by Anonymous Coward · · Score: 0

    Until they're delivering matter, not data, this isn't a teleporter. OTOH, it is a breakthrough in secure communications, but why would I care about that? It won't cut my commute time to 40ms, it's worthless. Dugg down ... oh wait, wrong site.

  15. more like ender's game... by XiX36 · · Score: 2, Interesting

    than star trek, sounds more like an ansible than a transporter, though i suppose that ender's game is not as well known as star trek.

    --
    Insert witty sig here.
    1. Re:more like ender's game... by Broken+scope · · Score: 1

      Philotic.... no, I am not going to start discussing that with someone.

      --
      You mad
    2. Re:more like ender's game... by blueturffan · · Score: 1

      Yep. Sounds much more like the ansibles. However, if the buggers were only 89 miles away, I don't think the ansibles would have helped much. Jane are you there? Jane?

    3. Re:more like ender's game... by Anonymous Coward · · Score: 0

      And apparently, Le Guin is even less well known.

    4. Re:more like ender's game... by dswensen · · Score: 1

      Nor Ursula K. LeGuin or James Blish, apparently, both of whom predate Card's use of the term by decades.

    5. Re:more like ender's game... by Elysdir · · Score: 1

      Yup. Some further details for anyone who doesn't know:

      Ursula K. Le Guin coined the term "ansible"; it first appeared in her novel Rocannon's World in 1966.

      James Blish used a similar (but not identical) device, called the Dirac transmitter; that term first appeared in his 1957 story "Beep."

      E. E. "Doc" Smith had a faster-than-light communications device called the "ultraphone" in his Skylark of Valeron in 1934. I'm pretty sure there were a variety of FTL communications devices in pulp science fiction.

      But yeah, Le Guin was the originator of the term "ansible." Card and others got the term from her.

    6. Re:more like ender's game... by Anonymous Coward · · Score: 0

      Ursula! I'm Naked!

  16. IANAP.... by retro128 · · Score: 3, Interesting

    and I don't understand quantum entanglement very well. So I was wondering - Is it possible that something like this can enable faster-than-light communications?

    --
    -R
    1. Re:IANAP.... by lilomar · · Score: 4, Informative
      No. At least, not according to this article in the last issue of Darkermatter.

      So could these entangled particles be used for superluminal communications? To achieve this we would need to create two or more identical (or cloned) particles and then separate them physically from each other. Then if we were to act on one of the particles, an observer of the second should be able to detect an effect. Then introducing a code (such as Morse Code) would mean we should be able to communicate at greater than the speed of light.

      Such a thing is unfortunately impossible. In 1982 physicists Bill Wootters, Wojciech H. Zurek and Dennis Dieks introduced the No Cloning Theorem. This theorem states that it is impossible to create an identical copy of an arbitrary unknown quantum state. As cloning is a requirement of using these entangled particles for superluminal communication, we have to rule this method out.
      --
      The creator of this post (Jacob Smith) hereby releases it, and all of his other posts, into the public domain.
    2. Re:IANAP.... by ObjetDart · · Score: 1
      and I don't understand quantum entanglement very well. So I was wondering - Is it possible that something like this can enable faster-than-light communications?


      IANAP either, but I am an internet user! From http://en.wikipedia.org/wiki/Spooky_action:

      "Observations on entangled states naively appear to conflict with the property of relativity that information cannot be transferred faster than the speed of light. Although two entangled systems appear to interact across large spatial separations, no useful information can be transmitted in this way, so causality cannot be violated through entanglement. "

      --
      I read Usenet for the articles.
    3. Re:IANAP.... by Hangin10 · · Score: 1

      No. I forget if Einstein himself proved that entanglement can't be used for communication or if it was proved later on. Take a look at the Wikipedia entry on it. The reasons why confused the hell out of me, but you'll probably have better luck. As I remember it had something to with causality and never knowing whether you're receiving a message or gibberish quantum results, and the whole once you measure it, you've changed it and therefore also the other person's particle and then they can't even send the message anyway. See? I told you I was confused.

    4. Re:IANAP.... by MadUndergrad · · Score: 1

      IIRC it was John Bell. He was the one who disproved the hidden variable theories. This was after Einstein had died, in the 60's.

    5. Re:IANAP.... by brunascle · · Score: 1

      from what i've learned, the entangled photons are connected in sort of an instantaneous, faster-than-light way, but you cant send information because you cant manipulate one and affect the other. if you try to manipulate one, it loses its connection.

      i could be wrong, or over simplifying it, but that's how i understand it.

    6. Re:IANAP.... by OfficialReverendStev · · Score: 1

      OK maybe I missed something but that would seem to say that it's impossible to create identical particles in identical quantum states. Isn't that, though, what this whole experiment did? Two identical, entangled particles that act as one? If I'm reading your post correctly (granted, I'm probably not) it says that what they've already done is impossible.
      I submit that I'm probably misunderstanding. Any help please?

      --
      A casual stroll through the lunatic asylum shows that faith does not prove anything. - Neitzsche
    7. Re:IANAP.... by ArsonSmith · · Score: 1

      "Such a thing is unfortunately impossible. In 1982"

      25 years has turned may other things from impossible to possible.

      --
      Paying taxes to buy civilization is like paying a hooker to buy love.
    8. Re:IANAP.... by lilomar · · Score: 2, Informative

      Oops, my fault entirely for not reading what I was posting properly. Yes, essentially, what these people have done is what the article I linked to (published only a few weeks ago) said was impossible. That's science for ya.
      (of course, INAP either, so maybe I still have it wrong, stranger things have happened..)

      --
      The creator of this post (Jacob Smith) hereby releases it, and all of his other posts, into the public domain.
    9. Re:IANAP.... by MrTester · · Score: 1

      Maybe I am missing something, but its my understanding that this is the whole point of quantum teleportation. You entangle two photons, move them a distance apart and when you change the state of one, the state of the other is instantly changed as well.

      I think that ruling things out because of theories is probably a bad idea.
      I know its hard to believe, but physicists have learned things since 1982 so it is possible that Zurek and Dieks "No Cloning THEOREM" turned out to be wrong. Hence the whole "Break-through" thing.

    10. Re:IANAP.... by bill_mcgonigle · · Score: 1

      Such a thing is unfortunately impossible. In 1982 physicists Bill Wootters, Wojciech H. Zurek and Dennis Dieks introduced the No Cloning Theorem.

      A decade later, IBM demonstrated that you can teleport something, but the original is destroyed. This may not violate the No Cloning Theorem, but it does teleport. Eerily, just like on Star Trek (excepting clones with additional facial hair, of course).

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    11. Re:IANAP.... by khayman80 · · Score: 4, Interesting
      I am a physicist, and I don't understand the connection between the no-cloning theorem and using entanglement for FTL communication.

      Think of entanglement this way: you've got two particles, each of them in a superposition of two states (horizontal and vertical polarization, for example). The "spookiness" of entanglement lies in the fact that the particles are created in a state where (for example) they have to have opposite polarizations. Thus even though each particle is in a (literally unknowable) superposition of horizontal and vertical, when you measure the first particle and find that it's horizontally polarized, that automatically means that a measurement on the second particle will show that it's vertically polarized. This occurs even if the second measurement is made a millisecond after the first measurement, and the two particles are on opposite sides of the galaxy.

      At first glance, this is remarkable. At second glance, it's just conservation of momentum: say the two particles are created from another particle with angular momentum=0. Then the sum of the two angular momentums needs to be 0, so their polarizations must be opposite. The "spookiness" Einstein referred to lies in the fact that quantum mechanics says that both particles are literally horizontally AND vertically polarized, up until the point where the first one is "collapsed" onto horizontal (or vertical). Then all of a sudden the states of both particles are well defined, which occurs even if both particles are separated by a great distance. Einstein took this spookiness to mean that quantum mechanics must be incomplete (namely, that each particle DID have a well defined state that quantum mechanics simply can't describe), but 30 years later a physicist named Bell found a way to experimentally test the issue using "Bell inequalities". Quantum mechanics predicted the outcome of these experiments (google Aspect experiments in the 1980s) up to very high sigma values.

      The problem with using these correlations for superluminal correlations is that each measurement just gives you a random horizontal or vertical outcome. The only interesting facet of these measurements is that, when you meet up with the guy who has the other entangled particles (at sublight speed), you find that your answers correlate perfectly. This isn't useful for communication! The only way that it could be used for communication is if quantum mechanics has small nonlinear terms which would allow one party to "bias" his collapse preferentially onto horizontal or vertical. Unfortunately, decades of testing have shown that any nonlinearities in the Schrodinger or Dirac equations underlying quantum mechanics are very, VERY small.

      Bummer. On the other hand, FTL communication automatically implies backwards-in-time communication (and thus travel) so at least we don't have to worry so much about being killed by our own grandchildren.

    12. Re:IANAP.... by Anonymous Coward · · Score: 0

      wikipedia says :

      Observations on entangled states naively appear to conflict with the property of relativity that information cannot be transferred faster than the speed of light. Although two entangled systems appear to interact across large spatial separations, no useful information can be transmitted in this way, so causality cannot be violated through entanglement. This is the statement of no communication theorem.

      Although no information can be transmitted through entanglement alone, it is possible to transmit information using a set of entangled states used in conjunction with a classical information channel. This process is known as quantum teleportation. Despite its name, quantum teleportation cannot be used to transmit information faster than light, because a classical information channel is required.

    13. Re:IANAP.... by khayman80 · · Score: 2, Informative
      IAAP, and yes, you're reading it wrong. The no-cloning theorem says that you can't take state "A" (which you can't measure or know anything about) and send it through a copying machine which gives you "A" and "Copy of A". Actually, you can build a machine like this, but only for state "A". You couldn't use the same copying machine for another unknown state "B". Which makes it kind of useless as a copying machine; it would be like requiring a different xerox machine for each book or magazine article you wanted to copy.

      Now, that doesn't mean that you can't create multiple copies of the same known state. In fact physicists do this all the time to run experiments enough time to obtain statistically reliable results.

      But it's also not the same thing as entangled particles. Entangled particles are not identical, in fact most of the time they've got different qualities like polarization. I've got another post in this topic that I believe sums the issue up fairly concisely.

    14. Re:IANAP.... by Anonymous Coward · · Score: 0

      why is FTL communication equate to backwards in time?

      if my special FTL does 400,000 km/sec instead of the standard 300,000 km/sec, it still takes TIME to get anywhere.

      in a half second, I'll only cover 200,000 km. That is not backwards in time.

      I understand that relativity means that an observer at either end watching this may appear to see something arrive at one end before seeing it leave from the other, but of course, that is just because light is slower. There really is no time travel.

    15. Re:IANAP.... by Anonymous Coward · · Score: 0

      >There really is no time travel.

      There really is no "time", only "space time". To exceed the speed of light you must redefine space-time, and also "time."

    16. Re:IANAP.... by suv4x4 · · Score: 1

      This occurs even if the second measurement is made a millisecond after the first measurement, and the two particles are on opposite sides of the galaxy.

      You know, I'm slightly skeptical about the "opposite sides of the galaxy". I can see thousands of scientists and sci-fi writers rushing to shut me up, but was his ever tested? As in, you know put two particles in the opposite sides of the galaxy and check their polarity.

      According to the current theory, the entanglement works despite of the distance, but you never know if won't turn out the distance limit is quite big in Earth dimensions, but quite well existing, and we don't know about it.

    17. Re:IANAP.... by roeman · · Score: 1

      This isn't useful for communication! The only way that it could be used for communication is if quantum mechanics has small nonlinear terms which would allow one party to "bias" his collapse preferentially onto horizontal or vertical.
      Perhaps it's not useful for communication itself; but it can be useful for the encryption of communication. These states, once observed, can act as a one-time pad http://en.wikipedia.org/wiki/One_time_pad for the two partys that has some beneficial characteristics.

      For example: It's extremely easy to destroy this OTP after use... and it should be impractical to use the state information more than once.
    18. Re:IANAP.... by khayman80 · · Score: 5, Informative
      Unfortunately, it's not easy to demonstrate that FTL communication implies backwards-in-time communication without using spacetime diagrams. I've done a little googling, and the best website I could find on this subject is here.

      The gist of the argument is that special relativity divides the universe into three regions of spacetime: the timelike future (which is the set of all points where you COULD be in the future if you could travel at any speed up to and including the speed of light), the timelike past (which is where all events that could POSSIBLY have an affect on you at the present reside) and "elsewhere", which is comprised of all other events. An example of an "elsewhere" event is the state of the Mars rovers RIGHT NOW. I can't possibly know that at the moment because there's about a 30 minute light travel time delay. It's important to realize that FTL communication connects you to an event in "elsewhere" in a causal manner.

      If you draw a spacetime diagram for two people, one of whom is moving very fast (at a conventional sublight speed) relative to the other, you'll find that the "elsewhere" of one observer intersects the past of the other. So using FTL communication and sublight engines to send a message to the past would work like this:

      1. Bob gets in his fancy spaceship and travels directly away from earth at 90% the speed of light. He travels for 1 year (the time and speed aren't really important, they just allow the message to be sent farther into the past).

      2. Alice, on earth, sends Bob an instantaneous message using her FTL communication device. It travels to Bob along what Alice considers to be her "line of simultaneous events" - the line in her spacetime diagram that goes through her present position and on through "elsewhere", to define the "present". It's not necessary for Alice's communication to be instantaneous, but it makes the argument (a little) clearer and doesn't really matter because going 1.0000001x the speed of light is just as impossible as going infinitely fast (as an instantaneous communication device would have to do).

      3. Bob receives the message at the exact instant (in Alice's timeframe) as when she sent it. He then sends the message back to Alice using the same FTL device. The difference is that Bob is travelling at 90% of the speed of light, so his "line of simultaneous events" is completely different- it actually intersects Alice's "timelike past".

      All of this makes a lot more sense once you get the hang of drawing spacetime diagrams, but it confused me for many years. You might want to google for tutorials on spacetime diagrams or "pole and barn" paradoxes to see some examples of spacetime diagrams...

    19. Re:IANAP.... by khayman80 · · Score: 1

      You're absolutely right, there might be some effect on large scales that screws up entanglement. I only used that example to drive home the fact that current theory says that there is no distance limitation at all, but it hasn't been tested. On the other hand, I would be very surprised to find that distance matters, because the math is (relatively) simple and clear, and it seems like distance dependence in this case would imply many other things about quantum theory are wrong (which seems unlikely- it's the most aggressively tested theory in science IMHO).

    20. Re:IANAP.... by SIGFPE · · Score: 0

      > why is FTL communication equate to backwards in time?

      1. People in different frames of reference measure different speeds. Suppose I'm at rest and a car drives by at 100km/h (as measure by my own radar gun). Suppose a cop car is tailing this car at 105 km/h pointing a radar gun at the first one. They don't measure 100km/h but instead measure the relative speed, -5km/h. So we can take this as a given: different people using different reference frames measure different velocities for the same traveling object.

      2. What Einstein showed was even more dramatic: if in some intertial frame an object is moving faster than light, then there is another inertial frame in which it is moving backwards in time.

      3. What Einstein also showed is that the laws of physics are independent of what reference frame you measure them in. In other words, if you have a device that can propel you faster than light then you must also be able to propel yourself back in time.

      Paragraph 3 is the tricky one. Speaking very vaguely: Einstein unified space and time so that space and time may be rotated into each other. An FTL path that points into the future can be rotated into a vector that points into the path. For more details I suggest reading up on the Lorentz transformation and noting that a Lorentz transformation allows any non-null spacelike vector to be transformed into any other so that a future-pointing non-null spacelike vector can be turned into a past-pointing non-null spacelike vector.

      --
      -- SIGFPE
    21. Re:IANAP.... by Pendersempai · · Score: 1

      Also, your definition of "simultaneous" depends on your frame of reference. Things that happen simultaneously in one frame of reference happen sequentially in a frame of reference with a velocity relative to the first.

    22. Re:IANAP.... by Anonymous Coward · · Score: 0

      thanks for your input here ;) it was informative...

      still,

      I don't why a super-luminal communication system cannot be setup if you have a quantum-entangled emitter which sits in-between the 2 communicating parties, so a constant stream of entangled particles is seen by each.

      Then one end would just have change the spin, or collapse the wave function for you physicist types, and the other could measure that with a detector just little further away.

      Either that, or use a binary method to have parts of the streams collapsed vs un-collapsed - thus creating your binary message.

      Whats wrong with that? :D

    23. Re:IANAP.... by ms139us · · Score: 1

      IANAP, but I informally study QM for a hobby. I know, I'm sick.

      At any rate, from what I understand, if there is a way to detect superposition, e.g. a quantum eraser, then FTL communication should be possible, no?

      Manipulating my photons will cause your interference pattern to change. In my QM ignorance, I claim FTL communication.

    24. Re:IANAP.... by Anonymous Coward · · Score: 0

      I don't understand this stuff very well, so sorry if this is a foolish question. Anyway, if I understand what others have said correctly, the main problem with using entanglement for FTL communication is that you cannot influence which spin one particle takes on when you collapse it, you have no way of using it to send information, even though the other particle instantly collapses to the opposite spin. Now suppose you had an atom or ion with one electron missing from the outer shell and the spins of all the electrons in it known. Thus if you then introduced one of your entangled electrons into this atom, would it not then be forced to take on a specific spin based on which position was the only one still open? It would be a clumsy method, but it seems that in principle you could have a supply of atoms needing a +1/2 electron and another supply of atoms needing a -1/2 electron. If you then direct your entangled electrons to one or the other, the spins of their entangled counterparts can be read to decode a binary message.

      I expect there's a simple reason why this wouldn't work, but reading these posts got me thinking about it and I can't figure it out myself, so I wonder if anyone could explain it. Thanks.

    25. Re:IANAP.... by sup2100 · · Score: 1

      It wont work because once you attempt to introduce your entangled electron to the atom you're going to break the entanglement. Since you're applying an external influence to that electron only, it's state will change but the other electron will remain unaffected.

    26. Re:IANAP.... by DrVomact · · Score: 1

      Interesting, but I'm afraid that your explanation is far too clear...and it's typically a bad sign when I understand something that's supposed to be as complicated as quantum mechanics...in other words, I'm probably not understanding it. Let me put it this way: I need some help to see the "spookiness". You say:

      ...Thus even though each particle is in a (literally unknowable) superposition of horizontal and vertical, when you measure the first particle and find that it's horizontally polarized, a measurement on the second particle will show that it's vertically polarized....

      Not being a physicist, I have no clue what you mean by "superposition of horizontal and vertical" polarization. But that's OK...you're referring to some sort of property or properties that particles can have, and that can be measured. If I understand correctly, you are saying that pairs of these particles are created in such a way that these qualities (whatever they are) must be in a contradictory relationship. So if you measure the (whatever) of one particle, you know that the other particle has the opposite (whatever) quality. But why is that mysterious, or spooky?

      Let's say I have a magic particle maker. When I press the trigger, it emits two particles in opposite directions. The particle maker is constructed in such a way that each time I shoot off a particle pair, one of the particles must be blue, and the other white. However, the colors are assigned randomly so that I can never predict whether the particle shot off to the left will be blue or white--I just know that the particle shot off to the right is of the opposite color. Now let's say that I've set up a game of catch-the-particle with Joe and Bill. Joe is standing a mile to my left, and Bill is a mile to my right. Due to the nature of my particle maker, I know that if Joe receives a blue particle, Bill has just got beaned by a white one, and vice versa. That doesn't seem spooky to me...it doesn't even seem particularly interesting.

      I have a feeling that what I'm missing is tied up with the word "unknowable" that you used in your explanation. It's not at all clear to me what you meant by that...if some object has a quality that can be measured, then that quality is not "unknowable" just because I haven't measured it yet. I'm sure it's not news to you that "unknown" is not the same as "unknowable". So what did I miss? I think this is the crux of the matter...if you could make this clear to me, I'd be mighty grateful.

      --
      Great men are almost always bad men--Lord Acton's Corollary
    27. Re:IANAP.... by Paperweight · · Score: 1

      Or even a quantum erasure method where the emitter is at one end...

      After understanding this quantum erasure experiment, it seems that if path p (in this experiment) was lengthened enough you can tell, by looking at the double slit results of path s, if the polarizer is in place on path p before the p photon even reaches the polarizer. What if path p was lengthened to a distant location? Could someone there apply or remove the polarizer to path p letting you, by looking at the nearby double slit interference/non-interference results of path s, receive the signal of whether the polarizer is on path p or not before the p photon reaches the distant polarizer? If so, you have FTL communication in one direction.

    28. Re:IANAP.... by Adammil2000 · · Score: 1

      I had trouble with this too, but here's the explanation that finally helped me have an "Aha!" moment and finally get it: http://grad.physics.sunysb.edu/~amarch/

    29. Re:IANAP.... by Rodyland · · Score: 1

      I saw it explained this way (can't remember where) and it finally clicked for me:

      Tom and Dick agree to have a duel. Tom and Dick have magical FTL instantaneous guns (again, instantaneous just makes it simpler to explain). Tom and Dick agree to move away from each other at high sublight speeds such that the relative time dilation between them is a factor of two. Each agrees to count to 8 and then turn and fire.

      Each has a valid frame of reference. Because of time dilation Tom sees Dick's clock moving at half speed, and Dick sees Tom's clock moving at half speed.

      So they head off and start counting. Tom counts to 8, turns and shoots before Dick does. When Tom shoots, he sees that Dick's clock reads '4' (time dilation).

      Tom's shot hits Dick but doesn't kill him. Dick looks at his clock, which reads '4', and is quite annoyed that Tom cheated (after all, only 4 seconds have passed). With his dying breath, Dick turns and shoots and kill Tom, whose clock reads '2' (time dilated relative to Dick) - ie. a full 6 seconds (in Tom's frame of reference) before Tom shot and wounded Dick.

      So what you have here is an demonstration of the grandfather paradox.

      (Man, I hope I got that right!)

    30. Re:IANAP.... by SirBruce · · Score: 1

      What you're basically describing is a what is known as a "hidden variable" theory. That is, you figure that it's not just that the two particles are correlated -- one always the opposite color of the other -- but rather that, when the particles are created, one is "really" blue and one is "really" white, and we just don't know which is which until we measure one of them.

      Unfortunately, it turns out that this seemingly innocent picture DOES NOT DESCRIBE REALITY when it comes to subatomic particles. The actual why is difficult to explain without math, but basically physicists can construct experiments that, if the particles realy had one "color" (your hypothetical quantity) or the other before measurement, we can run them through an apparatus and make them behave in a certain way. It turns out that, in fact, if particles actually had one "color" or the other, the result would be one way, but the experiment gets a different result. Experiments confirm that, in fact, particles have an indeterminate "color", a true mixture (called a superposition) of "colors", until the appropriate measurement is made.

      Note that there is quantum property called color that's unrelated here, so your use of the word can be confusing. You might want to use the word spin in the future, since spin works in exactly the way described above.

      Anyway, what all this means physicists still debate. This is why you see talk of things like multiple universes, higher dimensions, non-local hidden variables, causality violation, etc. These are all attempts to explain in understandable terms what seems to be a very inexplicable universe.

    31. Re:IANAP.... by SpacePunk · · Score: 1

      So, nobody has A) manipulated an entangled particle while B) someone at the other entangled particle observes it's state without the person at B knowing what the person at A is doing? In other words, A would send a dot signal (binary would work), and B receives the signal and writes it down as 'the message'?

      something like that.

      Someone can say 'yeah, we sent data instantaneously across a billion gajillion miles', but that would be useless for anything at all if the data is worthless untill the sender and receiver compare notes.

    32. Re:IANAP.... by khayman80 · · Score: 1
      SirBruce's explanation is dead on, but I spent so many years confused about this exact same issue that I thought I'd try to provide an alternative explanation.

      First of all, photons (particles of light) behave as though they're waves. There's a lot of subtlety hidden in this statement, but it's not relevant now: just picture a single particle of light moving into the screen while moving up and down pretty much like a water wave. This is a vertically polarized photon, and it can be easily distinguished from a horizontally polarized photon (a photon traveling into the screen while "waving" left to right instead of up and down). When I say "easily distinguished", I mean that you can place a device in the photon's path that produces a "click" if the photon is horizontally polarized, and a "beep" if the photon is vertically polarized.

      Now, according to the math of quantum mechanics, it's possible for a photon to be in a "superposition state" of horizontally and vertically polarized. This is sometimes described by saying that the photon is traveling into the screen while "waving" at, say, a 45 degree angle- somewhere in between horizontal and vertical. This isn't wrong, strictly speaking, but it's very misleading unless you've taken a lot of physics. Instead, I'll say that the math literally implies that the photon is in two states (horizontal and vertical) at once- but when you measure it the photon randomly "collapses" onto one of those states. The important point is that quantum mechanics says that the photon was in two states at once before the measurement, and that it's impossible- even in principle- to say which state the photon was in before the measurement took place. Theories which attempt to describe the state of the particle before the measurement (in contradiction to quantum mechanics) are known as "hidden variable theories". No physicist that I've met considers these theories plausible, despite their intuitive appeal.

      As SirBruce said, this "superposition then random collapse" is a bizarre property of quantum theory. But it becomes even more bizarre when you create two entangled photons- two photons that are each in their own superpositions, but created such that if one photon is horizontal, the other is vertical. Now, a measurement performed on one particle doesn't just collapse its polarization down to vertical or horizontal, it also collapses the other particle into the opposite polarization.

      Again, calling this phenomenon "spooky" depends on you believing me when I say that the photons are in a literally unknowable state before they are measured. Before the 1980s, it was plausible to believe that the whole concept of a "superposition" was mere fiction: the misguided result of equations that produced good answers for some problems, but implied a nonsensical property like entanglement in other cases. This is certainly the opinion Einstein held, so you're in good company.

      The problem is that in the 1980s, Aspect et. al. performed a series of experiments that have (nearly) conclusively proven that quantum mechanics is correct: particles do not have precisely determined states before they are measured. The details of these experiments are simply horrendous (I don't understand the nitty gritty of them myself, to be honest).

      So we don't really have any option but to abandon the picture that each particle is like a pair of particles which are produced by a machine in pairs of "blue and white". Each particle is literally blue AND white, and there is no way for anyone- no matter how advanced their technology- to be able to tell which is which before they're measured. It's not a matter of our inability to describe the situation fully, it's because the particles are literally in both states at once. Seem a little more spooky now?

    33. Re:IANAP.... by DrVomact · · Score: 1
      Thank you for that very lucid explanation, khayman80.

      I should lay my cards on the table. I'm not a physicist, I am something far worse: a philosopher. No I'm not kidding, I have a degree that proves that I, for at least a very short time (my dissertation defence took 3 hours), managed to convince 3 other philosophers that I was right about something. (You have to have spent some time around philosophers to understand why that's considered a noteworthy achievement.)

      Anyway, words like "knowability" and claims about "reality" are the sorts of words that get philosophers excited (well, as excited as they get), so I've spent a large portion of my life in sort of a stand-off with the quantum mechanics. A lot of them are plainly fools who write popular books to make money...it's pretty easy to pick them out. However, there are also some obviously very intelligent and serious people who talk about this stuff, who devote their lives to studying it, and yet utter what appear to be completely crazy propositions, propositions that should clearly be dismissed out of hand as nonsense.

      Though I'd like to, I can't do that--I can't simply dismiss what appears to be the dominant opinion among the leading scientific luminaries of the day. On the other hand, I can't bring myself to agree with it either, because I don't really understand it. Call me stubborn, but I cannot, in good conscience, agree with anything I don't understand.

      I must admit to a major handicap that colors my understanding (or lack of it) of this subject: acute dysmathia. Math and I have never gotten along...I can handle logic (deduction, argument, that sort of thing) just fine; I can use words like razors (especially when I'm more awake than I am now). But numbers and funny squiggles have never meant anything to me. It's much the same with music; they tell me that there are different notes, that they are called "A" and "G" or whatever, but I can't repeatably tell one from the other, nor can I recognize melodies--much less discuss the finer points of syncopation.

      I have often resented the reliance placed on mathematics by today's physics; it's as though a mere tool had become an end in itself. As you mentioned, one opinion I have taken comfort in is that "well, this quantum wave collapse looks good in their mathematical equations, it makes for an internally consistent mathematical description of what they're trying to explain, but it doesn't have anything to do with the world I live in. If it did, they could show it to me, and explain it in real words and not mathematical squiggles. But now, you're telling me, there's evidence to support the assertion that an object can be in two mutually inconsistent states at once. That is disturbing.

      The immediate reply that pops into my head is that if you are empirically demonstrating this "45 degree" spin state, then isn't that itself a measurement that should precipitate the quantum collapse? --But I'm sure someone's thought of that.

      For the sake of argument, let's assume that you perform the experiment for me, and I not only understand it, I'm convinced that it shows what you say it shows. You have demonstrated that a "particle" can have two contradictory characteristics (or states, or whatever) at once. In other words, you've demonstrated what appears to be a paradox.

      Isn't a such a paradox cause to re-examine our fundamental assumptions, to ask ourselves whether it's not time to take a totally new view of the universe? I'm not qualified to do that, though I have some vague intuitions about what might have gone wrong. For a couple of hundred years, physicists have vacillated between describing light--and then matter--alternatively in terms of either waves or particles. Mathematical models--and observed results--seemed to support both hypotheses in turn. But aren't both particles and waves merely metaphors? We derive the notion of a wave from watching ripples in a pond. Then we find that we can apply this mental model of a wave to both sound an

      --
      Great men are almost always bad men--Lord Acton's Corollary
    34. Re:IANAP.... by master_p · · Score: 1

      IANAP, but your explanation will not be understood by the general public, so here is a simpler explanation:

      We can measure the attributes of an entangled photon, but we can not arbitrarily modify those attributes so as that the change is reflected to the other entangled photon.

    35. Re:IANAP.... by master_p · · Score: 1

      Hmmm...there is perhaps a simpler explanation (IANAP, so that's why I always go for a simpler explanation):

      FTL communication creates causality paradoxes, because an FTL message from sender A to receiver B about an event E is received by B before the event E has happened for B.

    36. Re:IANAP.... by Ceriel+Nosforit · · Score: 1

      I think this 'waveform collapse' isn't a physical phenomena at all, but rather a mathematical description of what happens when we become aware of the measurements. Seems like the math is no longer describing the physics only, but also the instruments used to observe the physics, including our brains and minds.

      For example, if we have a device which measures the states, but there is no one to read the measurements, does the waveform collapse? (I.e. Trees falling in forests) Seems things always boils down to an awareness doing the observing. It would be easier to just separate the awareness from the physics and just state for example that an entagled pair has the total charge 0, and whatever charge one has the other counters with the opposite. When you separate the two charges they don't exist in some sort of mysterious limbo, but rather have their charge all the time and we're just ignorant of what it is. When we measure the charge of one to be negative; duh, the other is positive. We don't even need to measure it, except to verify that the laws of physics work as they have for the past 12 billion years.

      In conclusion, it seems to me that a very simple thing is being made unncessesarily difficult through mixing two things together when they don't need to be; physics and awareness. Physics can be very easy to conceptualize if we just do away with multiple terms for the same thing and non-descriptive names such as "Hilbert space" which just serve to commemorate someone. Then to make this simple understanding scientifically rigorous we just quantify, measure, our magnitudes and apply mathematics. We don't need to mix all of these things together into one unintelligible mess.

      --
      All rites reversed 2010
    37. Re:IANAP.... by Ceriel+Nosforit · · Score: 1

      Oooh, I like paradoxes. I've deviced a methology for solving them based on thesis, antithesis and synthesis. Lets say that our wave of light is our thesis and our particle of light is our antithesis. We already know that they are aspects of the same thing, and we can further develop this whole train of thought by calling this whole, this unity that the wave and particle are our synthesis.

      Labeling this thing is just fine, but it doesn't explain much regarding the things we really want to know. We'll want to analyze it to see if we can obtain a more satisfying definition or understanding. - We'll start by looking for what the wave and particle have in common. In this case we can see that the wave has a cyclic motion that forms what we could call a sine wave. Just some medium and a normal wave passing through it. The particle on the other hand appears to spin around its axis, and that too is a cyclic motion. We might now try to formulate a synthesis of these as we have just a little bit insight into both. We could for example conceptualize a rotation propagating through jelly. Someone gives the side of the jelly a twist and lets go, and the jelly elastically snaps back, overshoots and oscillates the rotation to let it propagate. This concept has the 'spin' of a particle and the 'wave' of a... wave. Two waves, actually, along both the x and y coordinates.

      As a philosopher you might be more interested in the methology for solving paradoxes, and what such a thing implies, than the physics of this example. I find that the method works rather nicely for most paradoxes, but it is in no way complete or a guarantee to find a solution. It's a framework, a mental aid.

      --
      All rites reversed 2010
    38. Re:IANAP.... by ph43thon · · Score: 1

      Isn't there some difference between sending "information" (which has no mass?) faster than light and sending something with a mass greater than zero faster than light? I guess some thing (with greater than zero mass) cannot travel faster than light because of all these nifty paradoxes or more simply.. because that would cause it to have infinite density. (Is that correct? Doesn't mass increase and volume decrease as you accelerate through space?)

      So.. mainly.. does information have mass? I'd guess no.. but.. who knows.. I mean.. does information have to be represented in a physical medium to exist? Do you need to move something physical (with mass) to transmit information?

      Maybe it is possible to transmit information faster than light.. but it is impossible to prove that the information did indeed travel faster than light. (Since that would require some sort of physical movement to observe.. or a comparison using different frames of reference.) In many systems, there are things that can be unknowably true or false.

      Also, the concept of simultaneity is meaningless.. things happen at different times based on who you ask.

    39. Re:IANAP.... by khayman80 · · Score: 1

      However, there are also some obviously very intelligent and serious people who talk about this stuff, who devote their lives to studying it, and yet utter what appear to be completely crazy propositions, propositions that should clearly be dismissed out of hand as nonsense.

      I agree, as do most physicists. Quantum mechanics is difficult to learn, not only because the math is complicated, but also because it's seemingly nonsensical. If it's any comfort, every quantum physicist since the 1920s has gone through the same stage of incredulity that you find yourself in now. In fact, that very incredulity has caused physicists to test quantum mechanics to a greater degree of precision than any other theory I can think of off the top of my head. In every experiment, designed to disprove every bizarre property of quantum mechanics, quantum theory has prevailed...

      Though I'd like to, I can't do that--I can't simply dismiss what appears to be the dominant opinion among the leading scientific luminaries of the day. On the other hand, I can't bring myself to agree with it either, because I don't really understand it. Call me stubborn, but I cannot, in good conscience, agree with anything I don't understand.

      It took me a long time to believe in black holes (even after most physicists thought they were conclusively proven to exist) so we agree on this principle.

      I must admit to a major handicap that colors my understanding (or lack of it) of this subject: acute dysmathia. Math and I have never gotten along...I can handle logic (deduction, argument, that sort of thing) just fine; I can use words like razors (especially when I'm more awake than I am now).

      I've always found math and logic to be extremely similar, if not synonymous. They both start with a small collection of axioms and use deductive (and occasionally inductive) logic to arrive at a conclusion. Have you ever tried to learn symbolic logic? If so it's quite similar to math, and I suspect it would lessen the transition shock because it encodes information into symbols in similar ways.

      As you mentioned, one opinion I have taken comfort in is that "well, this quantum wave collapse looks good in their mathematical equations, it makes for an internally consistent mathematical description of what they're trying to explain, but it doesn't have anything to do with the world I live in.

      Interestingly, wave function collapse is NOT an internally consistent description of reality. The inconsistency arises because the "collapse" of a quantum state is a completely different process than the normal time evolution of a quantum state; physicists say that it is a "non-unitary" process because it annihilates some of the quantum state (a state which is originally horizontal and vertical collapses onto vertical only, thus annihilating the horizontal part of the state). This is opposed to ordinary "unitary" processes that occur at all other times which don't affect "how much" of the state exists. This paradox was resolved (IMO) by Everett and Wheeler when they reformulated quantum mechanics without the "collapse" axiom- instead of collapsing onto horizontal or vertical, the entire universe splits in two. In one universe, the observer sees the collapse result in a horizontal state, while the other universe sees a vertical state. This is sometimes referred to as the "many worlds interpretation" of quantum mechanics. It involves fewer axioms, has no internal mathematical inconsistencies such as those created by the notion of wave function collapse, and results in the same physical predictions. The only caveat is that it predicts a nearly infinite number of parallel universes, leading some physicists to say that the many worlds interpretation is cheap in terms of axioms, but expensive in terms of universes.

      I mention this only because I find it interesting, but it really doesn't change any part of the argume

    40. Re:IANAP.... by khayman80 · · Score: 1

      After thinking about your last point some more, I think my "continuum between particles and waves" explanation isn't really the best answer. It's better to say that the whole particle-wave duality thing isn't really important here. Quantum entanglement can be demonstrated using completely different properties than polarization. For instance, one of the first quantum teleportation experiments (Boschi, et. al.) used "path entanglement". They created a pair of photons, each of which went through two paths (two paths for each particle, for a total of four different paths) at the same time. Even though each particle was actually traveling through two different paths, if you tried to measure one of them and find out which path it "collapsed" onto, the other particle (again, potentially on the other side of the galaxy) would instantly be "collapsed" onto a certain path in the other lab. Thus entanglement doesn't really have anything to do with particle/wave duality; it's simply that the most easily explained example involves polarization.

    41. Re:IANAP.... by DrVomact · · Score: 1

      On my way home from work tonight, I remembered what really bothers me about quantum mechanics. (It's a long commute.) I'm not really vitally worried about wave/particle stuff, or what the exact characteristics or behaviors of the quantum objects are. What bugs me is "collapse". The way I understand what I've read about QM, I'm required to believe that quantum objects are in some sort of indeterminate state until they are observed. Observation works a change on the observed object (and if "entanglement" is true, it may change another object at a distance, but let's not worry about that now).

      I've never understood this. Sometimes, it seems as though the quantum mechanics mean that the change is strictly mechanical--that is, it's a side effect of the instrument used to observe the object's behavior--going through a detector somehow changes the particle. But that seems trivial to me--of course something really tiny is going to be affected in some way if you do something to measure it. At other times, it seems to me that the assertion of "collapse" is something much more mysterious, that it has to do with someone learning about the particle's characteristics. I've read some QM articles in which the author seems to be asserting that the act of someone becoming aware of a particle's behavior somehow changes that behavior. In other words, if the instrument is turned on, and nobody happens to be watching it, then no "collapse" takes place. It's just when the physicist is paying attention that "collapse" happens.

      That has got to be wrong, because nobody but a philosopher could possibly say anything so completely silly. (Like David Hume for example, who thought that the world might possibly go away when he closes his eyes, or Berkeley, who averred that the universe only exists because God pays attention to it.) So if it's not a mere mechanical side-effect of instrumentation or a mystical by-product of the physicist's careful observation, what causes quantum "collapse"? (In case you're wondering, I am not pulling your leg--I am really this confused.)

      --
      Great men are almost always bad men--Lord Acton's Corollary
    42. Re:IANAP.... by khayman80 · · Score: 1
      I agree that quantum collapse is bizarre, and leads to many paradoxes such as Schrodinger's Cat, Bertelman's Socks, Wigner's Friend, etc. My personal answer is that there is no such thing as collapse. I use the term because it's part of the standard "interpretation" of quantum mechanics, but I actually believe that the many worlds interpretation (that I detailed in my last post) is more likely to be true. I say this because:

      1. Quantum collapse is introduced in the standard interpretation as an arbitrary axiom. Therefore, if any different formulation of quantum mechanics can eliminate this axoim while producing identical predictions about real experiments, we should choose the new formulation based on Occam's razor.
      2. Because quantum collapse is introduced as an axiom, it is not justified in any specific physical manner. In the many worlds interpretation, collapse is simply seen as "the decoherence caused by interacting with a system containing a very large number of particles". This phenomenon, known as einselection, is rigorously described on a fundamental level. It is a purely mechanical process, not a mystical one. It has nothing to do with knowledge. In fact, it emerges as an obvious consequence of letting an individual particle interact with an object composed of a very large number of particles.
      3. Quantum collapses are a fundamentally non-unitary process, as opposed to every other process in quantum mechanics. It's inconsistent with the rest of the theory in that respect.
      4. Abandoning quantum collapse by choosing the Many Worlds Interpretation of Everett and Wheeler (and more recently Deutsch) results in exactly the same experimental predictions as the "standard interpretation".
      Now, the many worlds interpretation is weird. It implies that a nearly infinite number of parallel universes exist, each representing the state of the universe if a particle had gone this way or that way, collapsed onto horizontal or vertical, etc. Because we humans are made up of particles, that means that there is a different universe for every possible event in history. There is a universe where the Nazis won WW2, where dinosaurs never became extinct, where Paris Hilton is a college professor, etc. But this weirdness is, in my mind, more than offset by the elegant way that it simplifies quantum theory. Not all physicists agree with me, but the many worlds interpretation is not a fringe view by any stretch of the imagination, and it seems to be growing more accepted with each year...
    43. Re:IANAP.... by DrVomact · · Score: 1

      As an enthusiastic fan of fantasy/science fiction from an early age, the "many worlds" (MW) hypothesis appeals to me; how nice, if it were true! However, as a fugitive philosopher, I must remain unsmilingly skeptical.

      1. Quantum collapse is introduced in the standard interpretation as an arbitrary axiom. Therefore, if any different formulation of quantum mechanics can eliminate this axoim while producing identical predictions about real experiments, we should choose the new formulation based on Occam's razor.

      With all respect sir, I must frown on your uttering the name of Occam in the same decade of your life as the phrase "many worlds". I truly cannot think of a more complex hypothesis! Perhaps the MW theory is no more strange than "collapse", but it's quite a bit more extravagant. I mean...all those universes!

      2. Because quantum collapse is introduced as an axiom, it is not justified in any specific physical manner. In the many worlds interpretation, collapse is simply seen as "the decoherence caused by interacting with a system containing a very large number of particles". This phenomenon, known as einselection, is rigorously described on a fundamental level. It is a purely mechanical process, not a mystical one. It has nothing to do with knowledge. In fact, it emerges as an obvious consequence of letting an individual particle interact with an object composed of a very large number of particles.

      I am pleased to learn that there are no epistemic requirements for MW. That is, I think you're saying that MW does not rely on the activity of observers--that the generation of new universes occurs whether or not someone is observing quantum events. Do I understand this correctly? If so, that is an improvement. I can't, however, concur with your claim that MW is "obvious".

      4. Abandoning quantum collapse by choosing the Many Worlds Interpretation of Everett and Wheeler (and more recently Deutsch) results in exactly the same experimental predictions as the "standard interpretation".

      This sounds as though neither hypothesis is empirically verifiable; both explain observed phenomena equally well, correct? I suppose that is no reason to reject either theory; I don't know what gravity "really" is, but Newton's--and later, Einstein's--theories of gravity both had "explanatory power".

      However, I note that in your article, you call the "collapse" theory "bizarre" and MW "weird". It seems that one sort of strangeness just appeals to you more than the other. (Do you like science fiction, too?) I've learned that when scientists (or philosophers) say such strange things, it's usually because someone is holding a gun to their heads (at least metaphorically). They're trying to explain something that is itself disturbing; if the explanation that occurs to them is also unpalatable, they may nevertheless be driven to embrace it, because they believe that any explanation is better than none at all

      So here is where I am with respect to understanding Quantum Mechanics: something has been observed that is so extremely strange, that even two such strange theories as "collapse" and MW look like good life preservers in a stormy sea. My problem now is that I can't properly appreciate the emergency--I can't understand what's been observed that makes apparently sensible people behave like this. It's as though I were sitting in an excursion boat, enjoying the scenery, when suddenly a bunch of geeky-looking fellows jump overboard, clutching life jackets. I have the queasy feeling that maybe I should go looking for one of those jackets (preferably one labeled "MW"), but I don't see any reason to jump overboard just yet.

      --
      Great men are almost always bad men--Lord Acton's Corollary
    44. Re:IANAP.... by khayman80 · · Score: 1

      As an enthusiastic fan of fantasy/science fiction from an early age, the "many worlds" (MW) hypothesis appeals to me; how nice, if it were true!

      I, too, seem to have been born with the gene for "sci-fi fan" turned on. Unfortunately, as I continue to learn about physics, I find myself less able to suspend belief than in years past. As a result, I usually prefer shows that either skip the technobabble completely (such as Firefly and Battlestar Galactica) or generally get the technobabble (reasonably) correct. Stargate Atlantis is the only show I can think of that even comes close, and it's only reasonably correct 20% of the time or so...

      With all respect sir, I must frown on your uttering the name of Occam in the same decade of your life as the phrase "many worlds". I truly cannot think of a more complex hypothesis! Perhaps the MW theory is no more strange than "collapse", but it's quite a bit more extravagant. I mean...all those universes!

      MW is extravagent, but only in the sense that it implies the universe is larger and stranger than we thought it was before. That's been happening for millenia- every new paradigm in science (heliocentricity, relativity, the realization that our sun is just another star, etc) has shown us that the universe is stranger than we thought it was before.

      So most physicists have stopped trying to apply common sense to physics theories. If Einstein had used common sense to say "Of course everyone experiences time at the same rate!", then we wouldn't have special relativity today. The only criteria I use are: (1) Does the theory match experiment? (2) Is the theory mathematicall consistent? and (3) Does the theory have fewer axioms than its nearest competitors?

      In this sense, the MW interpretation wins. It is mathematically consistent, involves one fewer assumption than the conventional "collapse" interpretation of quantum mechanics, and it describes experimental results just as well. It's possible that there are other interpretations that work (such as Cramer's "Transactional Interpretation") but for now I'm leaning towards the MW interpretation.

      I am pleased to learn that there are no epistemic requirements for MW. That is, I think you're saying that MW does not rely on the activity of observers--that the generation of new universes occurs whether or not someone is observing quantum events. Do I understand this correctly? If so, that is an improvement. I can't, however, concur with your claim that MW is "obvious".

      Yes, the "collapse" effect in MW is a purely physical phenomenon. It's difficult to translate the math into english, which is why I've said strange things like "generates new universes". This is a clumsy (and probably overly dramatic) way of describing the process, but it's the best I can do. A more mathematical way of describing the process would be to say that coupling an isolated quantum system to a much larger system (like a detector) dramatically reduces the off-diagonal terms of the density matrix describing the original quantum system. Since these off-diagonal terms describe interference between the various eigenstates of the quantum system (horizontal and vertical polarization, for example), this process effectively prevents the two eigenstates from interfering with each other. Because the two eigenstates no longer interact, some physicists interpret the resulting density matrix as saying that the two outcomes are now in two "separate universes" which no longer interact.

      But, as you can tell it's a lot easier to say it "splits the universe in two".

      This sounds as though neither hypothesis is empirically verifiable; both explain observed phenomena equally well, correct? I suppose that is no reason to reject either theory ...

      Yes. They're simply interpreting the math of quantum mechanics in different ways, and the mat

  17. Useless for transporting matter by elrous0 · · Score: 2, Informative

    A lovely headline, but the only practical application of this form of "teleportation" is cryptography (you could have some pretty damn unbreakable keys with this). Even if you could "teleport" any significant amount of matter, it would be many, many, many orders of magnitude more challenging than this and you would have to get past some pretty significant hurdles (Heisenberg being one of the least of your problems).

    --
    SJW: Someone who has run out of real oppression, and has to fake it.
  18. Since when did... by DriveDog · · Score: 1

    the National Enquirer report on quantum entanglement? What a bunch of hype. I'm happy about what they accomplished, but it's just another small step of which we'll need many.

  19. Wrong Sci-fi by Tofystedeth · · Score: 1

    This is less like the Star Trek Transporter, and more like the ansible, which functioned via philotic twining (which as far as I can tell is quantum entanglement by a different name) from Ender's Game. TFA also mentions that the Transporters were said to have used quantum entanglement. I don't remember that at all. Is it from the newer stuff? As far as I knew the way they worked was the computer would store all information about the object, using the ever so convenient Heisenberg Compensator, then use that data to rebuild them on the other side in the same way the replicators worked. No entanglement involved.

    --
    "A little knowledge is a dangerous thing. Drink deeply or not at all."
    1. Re:Wrong Sci-fi by Broken+scope · · Score: 1

      philotic twinning went far deeper than entanglement. If remember it also created that basis for a soul or a consciousness that could be passed from body to body or connect a hive together, or allow someone to create them self based on a mental image of them self.

      --
      You mad
    2. Re:Wrong Sci-fi by Zenaku · · Score: 1

      Like almost all Start Trek technology, the pseudo-science principle used to justify it is pretty malleable, and can be changed by the writers to fit the situation as needed.

      The way I remember it, a subject is physically broken down to a molecular level and the actual particles of which he/she is composed are then sent through "subspace." So the subject is in fact transported, not replicated. If the transporter simply transmitted data describing how to build a copy of the person, then 1) there would be no transporter accidents, because you could simply delay disassembling the original until the person had arrived safely, and B) there would be no limitations about "beaming through shields" since their pure communication technologies obviously work through shields. Also, 3) nobody would ever die, since they could always be restored from a "backup copy" using the transporter.

      How this explanation, which I recall as the official one, jives with certain episodes like the one with two Rikers is a mystery to me. The beauty of technobabble.

      --
      If fate makes you a motorcycle, you become a motorcycle.
  20. *Overheard in the lab* by DarthStrydre · · Score: 2, Funny

    LORA - Well, here goes nothing ...

    GIBBS - Hah. Interesting, interesting. You hear what you said? "Here goes nothing."

    LORA - Well, I meant -

    GIBBS - Whereas actually, what we propose to do is to turn something into nothing and back again. So you might just as well have said, "Here goes something and here comes nothing." Hah!

    1. Re:*Overheard in the lab* by GodfatherofSoul · · Score: 1

      BIFF (security guard brute): Dork!

      --
      I swear to God...I swear to God! That is NOT how you treat your human!
  21. Yeah right by iamacat · · Score: 1

    Transmitting photons has nothing to do with transporters. It doesn't exceed speed of light or go through any opaque materials like starship hulls. But most importantly, it doesn't address the little problem of moving non-light particles or else assembling the exact copy at the destination.

    Basically this is no different than sending a file over a fiber optic link, except that you get some additional hardware-based security.

  22. Better watch out! by navygeek · · Score: 1

    For the sake of the scientists that worked on this project, I sincerely hope they 'transported' data that isn't 'protected' by the DMCA or I'm sure the RIAA/MPAA will cause this technology to become still-born.

  23. sounds great but... by underlord_999 · · Score: 1

    ...the connection setup overhead be a real pain! Now to exchange encrypted data with some place, I have to entangle some photons and physically move them to said destination. THEN all my traffic is "instantaneous". Or is it that it isn't instaneous but just some very, very, very small latency? I also wonder how long it takes to establish the entanglement between a pair of photons and how many photon pairs are needed to get a reliable signal-to-noise ratio. The article is a little light on details in that arena. Anyone know?

    1. Re:sounds great but... by underlord_999 · · Score: 1
      (replace 'instaneous' with instantaneous.) You failed me Firefox spell-check! Oh who am i kidding... now everyone knows I like making up new words.

      Oh great, I also left out a 'must' in front of 'be a real pain' or maybe I just left out an 'Arrrrrr' at the end of that sentence. I don't even have a Firefox grammar module (pirate edition of course) to blame...

  24. nice summary... or something by drinkypoo · · Score: 1

    Tiny packets or particles of light, photons, were used to teleport information between telescopes on the two islands. The photons did it by quantum entanglement and scientists hope it will form the basis of a way of sending encrypted data."

    Paul Revere signalled using tiny packets of particles of light called photons, too.

    First Paragraph: Quantum teleportation across the Danube

    But of course you have to pay.

    Without being able to read the actual paper (when oh when are we going to see researchers publishing information in non-fee journals as a matter of course? they are holding science hostage!) it's hard to say what this actually gains, given that it requires the transmission of a third photon to get useful information out of the original two.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    1. Re:nice summary... or something by scriptkiddie · · Score: 2, Informative
    2. Re:nice summary... or something by drinkypoo · · Score: 1

      Nice link. For the record, how did you find it?

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    3. Re:nice summary... or something by scriptkiddie · · Score: 1

      Google'd for Robert Ursin (mentioned in the article), quickly realized they meant Rupert Ursin, went to his site and looked for the most recent article, then found the same article on Arxiv (so his site wouldn't get /.'ed). It'd be altogether easier if newspaper articles had bibliographies....

    4. Re:nice summary... or something by Jim_Callahan · · Score: 1

      "when oh when are we going to see researchers publishing information in non-fee journals as a matter of course?"
       
      Right after the peer review process magically no longer requires expensive lab time and resources. If only there were some way to fund peer review from the pocket of the people that use the data... oh, wait.

      --
      ...it's really a sad day for America when we require a goddamn ACT OF CONGRESS to make our DVD players work properly. ~
  25. What I don't get about quantum entanglement is... by sakdoctor · · Score: 1

    Isn't it like having a pair of shoes, and you separate the shoes into two boxes. You then you take your shoe in a box away, and upon opening the box you observe that you have the left shoe.

    Ahah! That means the other one was a right shoe. No information is transmitted though. How is it not like that?

    Maybe someone can convert this to a car analogy to explain it better.

  26. Eh... by Zero+Degrez · · Score: 1

    Wasn't the whole point of the transporter to move matter, and the state of matter? This article says they want to sent the state of matter without sending the matter.

    I feel if someone tried to implement this as a transporter they would end up with a remote cloning station, like the device from The Prestige. Useful, but I think this is like saying a Fax machine moves us closer to a Star Trek transporter.

    Give me a call when someone develops the Heisenberg Compensator.

    1. Re:Eh... by Broken+scope · · Score: 1

      Maybe, though theoretically wouldn't the original be destroyed in the process?

      --
      You mad
    2. Re:Eh... by udowish · · Score: 1

      It is a little bit miss-represented. Quantum teleportation has NOTHING to do with matter transport; only "spin" or state transport. The issue in science is this, it appears to violate relativity. Information travels faster than light, a change in one coupled pair results in an instantaneous change in the other; cause and effect have NO measurable time difference and it appears to be independent of distance. Our next leap in science will be another branch of physics that addresses issues like this. Quantum Mechanics, Newtonian Mechanics, Relativity, XXXXXXXX PS I have a Heisenberg Compensator already, most people do...can u guess what it is?

      --
      when in doubt press enter and we'll figure it out later..
    3. Re:Eh... by Zero+Degrez · · Score: 1

      Nope, that's what made the transporter so magical. You Cut. You don't Copy Paste Delete.

    4. Re:Eh... by DigitalSorceress · · Score: 1

      Ahh, but how are they going to develop a Heisenberg Compensator if they don't perform experiments on transmitting the full quantum state of matter over a distance?

      You see, that's the point.. in order to transport matter, you are going to have to take a very detailed picture of its exact quantum state. And you're going to have to transport that over a distance. This is a LOT of data (something like one bit per Planck Area (LOTS and LOTS of bits per cubic centimeter)), so if they can harness some of that "spooky action at a distance" (Quantum entanglement) to directly transmit the states instead of store and forward, then maybe they've taken a quantum leap (pun intended) toward teleportation.

      --

      The Digital Sorceress
  27. I doubt that governments will let this get out by Prototerm · · Score: 1

    Think of what this means for a moment: a high-bandwidth router capable of sending a fat data stream anywhere in the world instantaneously, a stream that nobody could jam, spy on, or even detect. This would be the worst nightmare of intelligence services everywhere, and there is just no way they'd let this technology get loose.

    In fact, it's potentially so dangerous and disruptive, I'd venture to say that even the military would be denied access to it, since it would quickly escape into the wild. Of course, NASA would kill to get their hands on it. You could send more than data through this thing, remember, you could send electricity, too! Space probes powered by earth-based generators (or earth systems powered by space-based satellites).

    Too bad we'll never get to see any of it.

    --
    "My country, right or wrong; if right, to be kept right; and if wrong, to be set right." --Senator Carl Schurz (1872)
  28. One step closer to an ansible, maybe. by tukkayoot · · Score: 4, Interesting

    The article says that quantum entanglement is one of the scientific principles invoked by Star Trek to explain how transporters function, and that may be true as I don't own all of the tech manuals, but my understanding is that the main principle behind transporter operation is the idea that matter-energy conversion is possible (and practical). Same goes for holodecks and replicators.

    What this would seem (at least on the surface) to bring us closer to is the ansible communications technology employed most famously in the Ender's Game series. That is, by utilizing the properties of quantum entanglement, it may be possible to achieve faster-than-light communication. This also has its problems though ... I've read some bits by physicists who claim that such technology is impossible or unlikely to ever be achieved, but I'll admit that I didn't really understand the first thing about their arguments.

    1. Re:One step closer to an ansible, maybe. by hal2814 · · Score: 3, Funny

      Seems like ansibles would be a bad idea. Sure you could have faster than light communications but at the expense of the Buggers hearing every word of it.

    2. Re:One step closer to an ansible, maybe. by UbuntuDupe · · Score: 4, Interesting

      My reaction was, it doesn't matter if you're limited to the speed of light, or if it can provide additional encryption. It still has the benefit that you can send data without using the (limited) electromagnetic spectrum, or laying down lines, both of which are expensive markets to enter.

    3. Re:One step closer to an ansible, maybe. by SEAL · · Score: 4, Funny

      It still has the benefit that you can send data without using the (limited) electromagnetic spectrum, or laying down lines, both of which are expensive markets to enter. ... because hiring a team of quantum physicists, securing patents, and avoiding becoming a wholly owned subsidiary of the NSA is so much cheaper?

    4. Re:One step closer to an ansible, maybe. by iluvcapra · · Score: 5, Funny

      my understanding is that the main principle behind transporter operation is the idea that matter-energy conversion is possible (and practical). Same goes for holodecks and replicators

      I own many of the technical manuals, and they go to pains to handwave over this part of it, making a big deal about "Heisenberg compensators" and working through how these machines capture the data (basically every quantum number in the system, in real time, digitally). All of the gear you mention usually has something called a "phase transition coil" that does the complicated job of making the matter non-corporeal. One can assume the mass is turned into energy, the books won't dissuade you from this, but mass into energy isn't a phase transition, and the amount of energy you'd get from the average human mass would destroy the Enterprise several times over.

      The likely explanation a writer, cornered, would give you is that these devices handle matter that is in an as-yet-undiscovered, highly exotic, highly energetic, wavelike, and protean phase of matter, that might as well be energy from our modern-day perspective. In the canon, an object being transported is never referred to as energy, but as "phased matter," which would seem to support this.

      Now if you'll excuse me, I'm going off to sleep with my highly exotic, highly energetic, and as-yet-undiscovered girlfriend.

      --
      Don't blame me, I voted for Baltar.
    5. Re:One step closer to an ansible, maybe. by moderatorrater · · Score: 3, Informative

      The ansible communicated by means of two entangled particles. That is impossible by everything that we currently know.

      The type of system they're talking about is where you use entangling to imprint the differences between two particles on a third one. They're fundamentally different and resemble neither the ansible nor star trek transporters.

    6. Re:One step closer to an ansible, maybe. by Grishnakh · · Score: 1

      I used to be a big Star Trek geek when I was in high school (I'm happily married now, FWIW, though I stopped following Star Trek in college). I had all the tech manuals, read the books, etc.

      From what I remember, the ST transporters were basically "matter transporters": they disassembled matter, arranged it into a stream (sorta like a particle beam), and somehow reassembled it remotely. The matter never actually turned into energy (though it was probably transported with the aid of much energy), and the reassembled matter was actually the same physical matter that was disassembled, not just a copy of it.

      This was totally different from things like inter-dimensional transport, where people or objects are somehow moved into "hyperspace" or "subspace" or some alternate dimension or whatever, and then moved back into our universe but at a different location.

      Personally, if we ever learn more about alternate dimensions, I think that's a far more realistic method of teleportation than trying to disassemble and reassemble objects at the atomic level, especially when you consider that any complex object (like a living being) incorporates both matter and energy.

      In the meantime, I think our efforts would be better spent trying to just build a simple shuttlecraft. We can't even get ourselves out of the atmosphere elegantly and safely (a space elevator would be good), and we haven't even managed to land humans on anything besides the moon. Worrying about teleportation seems premature at this time.

    7. Re:One step closer to an ansible, maybe. by brunascle · · Score: 4, Informative

      by utilizing the properties of quantum entanglement, it may be possible to achieve faster-than-light communication
      no, it isnt. this has nothing to do with the speed of light. you cant use quantum entaglement to send data faster than light. no one is trying to.

      if you're trying to send data, you'll still need to send photons (or other particles) from one location to another. when you're talking about quantum entanglement and sending data across distances, what you're doing is taking two photons in the same location and tieing them together, then sending one of the particles across a distance. when it gets there, it's still tied together (unless something screwed it up on the way), but if you try to manipulate your photon then it unties from the other, so you cant use it to send info faster than light.
    8. Re:One step closer to an ansible, maybe. by drinkypoo · · Score: 1

      Personally, if we ever learn more about alternate dimensions, I think that's a far more realistic method of teleportation than trying to disassemble and reassemble objects at the atomic level, especially when you consider that any complex object (like a living being) incorporates both matter and energy.

      When we discuss matter on a quantum scale we must discuss it in terms of forces because at that scale it becomes clear that we are dealing with almost entirely empty space.

      Matter and energy are theoretically interchangable, although we don't know precisely how :)

      I think our efforts at this point would be best spent working on developing the materials and other technologies required for the space elevator. Barring some new, cheap source of energy (like, say, dilithium crystals) getting out of the gravity well in the first place is the major barrier.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    9. Re:One step closer to an ansible, maybe. by passthecrackpipe · · Score: 1

      A similar means of communication by quantum entanglement is employed by the Amnion in Donaldsons' The Gap Cycle - an awesome read.

      --
      People who think they know everything are a great annoyance to those of us who do.
    10. Re:One step closer to an ansible, maybe. by brunascle · · Score: 1

      you still have to use the electromagnetic spectrum. you are sending photons from one location to another.

    11. Re:One step closer to an ansible, maybe. by jdray · · Score: 1

      I wonder if they untangle in a predictable fashion. If they did, then maybe we could send a bundle of entangled photons to a remote location, then purposely alter their states, henceforth altering the states of their entangled bretheren. If it happens predictably, then we would have superluminal data communication, right?

      --
      The Spoon
      Updated 6/28/2011
    12. Re:One step closer to an ansible, maybe. by nizo · · Score: 1
      ...faster-than-light communication...


      The nice thing about faster than light communication is that it also allows for sending messages back in time. Since these guys haven't gotten any messages from their future selves yet the outlook of the whole project is bleak :-(

    13. Re:One step closer to an ansible, maybe. by Grishnakh · · Score: 1

      I think our efforts at this point would be best spent working on developing the materials and other technologies required for the space elevator. Barring some new, cheap source of energy (like, say, dilithium crystals) getting out of the gravity well in the first place is the major barrier.

      I agree entirely. The biggest cost in space exploration right now is in the fuel and systems needed to get out of the gravity well. A space elevator, once in place, would make it ultra-cheap to put stuff into orbit, or fling it out into space, and to bring stuff back to earth as well.

    14. Re:One step closer to an ansible, maybe. by yid · · Score: 1

      I think you're missing something about entanglement here. Once two particles are entangled, they can then be separated by great distance. Then an observation of one particle effects the other *instantaneously* (which would be infinitely fast, and faster than light-- at the same time!) regardless of that distance. Its a very difficult concept; in fact, Einstein believed it went against all common sense and spent a lot of time trying to disprove it, see EPR (and therefore all quantum mechanics). "The God Effect" by Brian Clegg is a wonderful, easily-read explanation of this phenomenon.

    15. Re:One step closer to an ansible, maybe. by brunascle · · Score: 4, Funny

      this is god speaking. stop looking for superluminal travel. it doesnt exist.

    16. Re:One step closer to an ansible, maybe. by sofla · · Score: 1

      What this would seem (at least on the surface) to bring us closer to is the ansible communications technology employed most famously in the Ender's Game series.

      I've not read Ender's so I've no idea whether quantum entanglement relates to "ansible" or not, but I did read Chris Moriarty's Spin State quite recently. Quantum entanglement features prominently in that story as both a communications mechanism for a universe-spanning computer network, as well as for an FTL transportation mechanism. It also has an impressive bibliography, which led me to believe that some of the ideas may have a basis in contemporary theories.


    17. Re:One step closer to an ansible, maybe. by ConceptJunkie · · Score: 5, Funny

      The good news is that you can send unbreakably encrypted messages over long distances instantaneously. The downside is that the people who receive your messages are complaining about President Kucinich's proposed tax legislation and how expensive produce is since California fell into the sea, and all the foreign aid we've given to Mexico because of it, and whether Quebec's Senator is eligible to be the U.S. President because when he was born, it _was_ a foreign country, and they have no idea what the hell your warning about terrorist activity at Kennedy airport is all about.

      --
      You are in a maze of twisty little passages, all alike.
    18. Re:One step closer to an ansible, maybe. by brunascle · · Score: 2, Interesting

      eh, not really, from what i understand. the grey area is in the definition of "affecting" the other particle. observing one doesnt really affect the other, in the normal sense of the word.

      one way people think of it is that, say there are an infinite amount of possible states for the particle. what there really is is an infinite amount of universes, and each universe has 1 particular state of the particle. and in each universe, the state of that particle matches the state of the particle it's entangled with.

      before observing the particle, all the universes blur together. when you observe your particle, it doesnt affect the other, it affects everything. all the universes except one disappear into nothingness. and, as before, it just so happens that in this universe that has become real, both the particles are tied together, so both of them now have a real single state that matches somehow, and not the blurring of infinite states as before.

    19. Re:One step closer to an ansible, maybe. by Anonymous Coward · · Score: 0

      As I understand it, if you could send matter or information faster than light, you could effectively send it back in time; and our current theories hold that "causality" would prevent this. You can't say "Zaphod Beeblebrox was shot" and send it back to before he was shot, that's a paradox.

      So, it wouldn't matter if you could somehow pop into a different dimension, and then pop out again somewhere else in space-time, you aren't allowed to pop out one light year away from where you started unless you don't show up until a year has gone by. But I really don't understand this, I'd really like a physics geek to explain the details here.

      Current theory holds that you cannot use quantum-entangled particles to send data faster than light; experiments like this one rely on sending some information via a conventional channel (in this case, photons through telescopes).

    20. Re:One step closer to an ansible, maybe. by KingMotley · · Score: 2, Funny

      God, it's "doesn't".

    21. Re:One step closer to an ansible, maybe. by powerpants · · Score: 1

      From what I remember, the ST transporters were basically "matter transporters": they disassembled matter, arranged it into a stream (sorta like a particle beam), and somehow reassembled it remotely. Wonkavision!
    22. Re:One step closer to an ansible, maybe. by JesseMcDonald · · Score: 2, Informative

      some new, cheap source of energy (like, say, dilithium crystals)

      As I recall, the dilithium crystals were not the source of energy; they were merely there to regulate the matter-antimatter reaction. As far as I know the origin of the antimatter was never explained. Forget dilithium; if we had their (presumably unlimited) supply of antimatter, energy would become the least of our worries.

      --
      "The state is that great fiction by which everyone tries to live at the expense of everyone else." - Bastiat
    23. Re:One step closer to an ansible, maybe. by WhiplashII · · Score: 1

      The biggest cost in space exploration right now is in the fuel and systems needed to get out of the gravity well.

      Interestingly enough, this is precisely wrong. The current fuel cost of sending a pound of mass to orbit is less than $20. The expense is primarily people and infrastructure.

      So your solution - to build a larger, more expensive infrastructure - seems unfulfilling somehow...

      Heh.

      I am currently working on a space vehicle where the cost of fuel will matter. This will change everything! (I hope...)

      --
      while (sig==sig) sig=!sig;
    24. Re:One step closer to an ansible, maybe. by CRC'99 · · Score: 1

      My reaction was, it doesn't matter if you're limited to the speed of light, or if it can provide additional encryption. It still has the benefit that you can send data without using the (limited) electromagnetic spectrum, or laying down lines, both of which are expensive markets to enter.


      Colour me as a quantum entanglement n00b, but could this be used between exploring satellites/probes to communicate back to earth therefore making the 6+ year wait for data a thing of the past?
      --
      Sendmail is like emacs: A nice operating system, but missing an editor and a MTA.
    25. Re:One step closer to an ansible, maybe. by BungaDunga · · Score: 1

      Problems in that one of the fundamental principles of modern physics is that _nothing_ can travel faster than light, not even information. Principles have been overturned, of course, but this one seems pretty solid.

    26. Re:One step closer to an ansible, maybe. by maxwell+demon · · Score: 2, Informative

      Interestingly it's not really hard to see that there's no superluminal information transfer. All you have to do is to look at the system in the Heisenberg picture. See http://arxiv.org/abs/quant-ph/9906007 for details.

      --
      The Tao of math: The numbers you can count are not the real numbers.
    27. Re:One step closer to an ansible, maybe. by Drantin · · Score: 1

      If you record a wonkavision broadcast, do you get chocolate every time you play it back?

      --
      Actio personalis moritur cum persona. (Dead men don't sue)
    28. Re:One step closer to an ansible, maybe. by jacksonj04 · · Score: 1

      Bang on - it makes instant communications over (theoretically) infinite distances possible without needing an increase in power consumption as distance increases.

      The downside is you need quite a bit of complex gear on each end (at least at the moment) and photons don't exactly hang around for the longest of all the known particles (Yeah I know wave particle duality, but you know what I mean). And of course we don't know how quantum entanglement exactly works, so for all we know it might pack in after 500 miles.

      For larger satellites and massive distances it is certainly an important development. Communications would become effectively instant and not subject to interference from other bits of the EM spectrum since you don't need to 'tune' into anything from the outside world, so things like spacecraft in the shadow of planets can communicate exactly as if they were in orbit around Earth, and straight above the transmitter to boot.

      --
      How many people can read hex if only you and dead people can read hex?
    29. Re:One step closer to an ansible, maybe. by TheTapani · · Score: 0, Offtopic

      this is god speaking. stop looking for superluminal travel. it doesnt exist.

      "ok"

      http://www.youtube.com/watch?v=-ZWF9kCIcGo

      While we all know how much we should believe what we see on the internet -- once you see one of those irl it kinda changes your perspectives. There is far more evidence for them than for that God guy anyway.

      //T

    30. Re:One step closer to an ansible, maybe. by whatme · · Score: 1

      This is great news. We can have our support calls to India without the call lag. Now we can become frustrated instantly rather than a few microseconds later. And when expansion occurs, we can outsource phone support to Mars!

    31. Re:One step closer to an ansible, maybe. by GammaKitsune · · Score: 1

      Objection! It's possible that the future is constantly sending messages back to us, and we're simply unable to detect or interpret any of them with our current technology.

      --
      Gamertag: WyleType
    32. Re:One step closer to an ansible, maybe. by rekenner · · Score: 1

      No - You're sending the state of those photons. There's a very large difference.

    33. Re:One step closer to an ansible, maybe. by revengebomber · · Score: 1

      Not anymore! (at least if you're a Republican)

      --
      09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0
      45 5F E1 04 22 CA 29 C4 93 3F 95 05 2B 79 2A B2
    34. Re:One step closer to an ansible, maybe. by RomulusNR · · Score: 1

      It still has the benefit that you can send data without using the (limited) electromagnetic spectrum, or laying down lines, both of which are expensive markets to enter.

      Uh, yeah. Compared to a radio antenna or a T1, subatomic particle entanglement and photon beam emission is cheap as hell.

      --
      Terrorists can attack freedom, but only Congress can destroy it.
    35. Re:One step closer to an ansible, maybe. by OrangeTide · · Score: 1

      when it is cell phone size we'll finally be able to keep talking while we're driving through tunnels. just think, you can be climbing mount everest when you're suddenly interrupted by a call about your home mortgage rate (are you paying too much?).

      --
      “Common sense is not so common.” — Voltaire
    36. Re:One step closer to an ansible, maybe. by Miseph · · Score: 1

      "Now if you'll excuse me, I'm going off to sleep with my highly exotic, highly energetic, and as-yet-undiscovered girlfriend."

      Nothing personal, and I know this is going straight to -1 troll/flamebait, but...

      I think the fact that you wrote the rest of that post just might be a large part of the reason for this, I could be wrong, but it seems very unlikely that I am.

      --
      Try not to take me more seriously than I take myself.
    37. Re:One step closer to an ansible, maybe. by Anonymous Coward · · Score: 1, Informative

      "and the reassembled matter was actually the same physical matter that was disassembled, not just a copy of it."

      http://en.wikipedia.org/wiki/Second_Chances_(TNG_e pisode)

    38. Re:One step closer to an ansible, maybe. by iluvcapra · · Score: 1

      I knew a strong Insightful or Informative was iffy, but if I ended on a good zinger, I could land a Funny. And just about everything people post on slashdot could end with some sort of "I have no SO" joke. QED

      --
      Don't blame me, I voted for Baltar.
    39. Re:One step closer to an ansible, maybe. by geekoid · · Score: 1

      Laughable. I have looked at manuy, many hours of this kind of footage.

      While you really need the original to do any real analysis, that video raises severl questions.

      1) Why is the object at the top of the screen? If I was filming it, it would be the center of the camera.

      2) The cameras motion was limited, certianly not hand held.

      3) Why are the lights very clear, but the object is blurred?

      It seems like it was important to the person shooting the shot to keep the building in view. When doing trick filming, keeping a known object in the screen makes it look more real.

      This video changes nothing.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    40. Re:One step closer to an ansible, maybe. by Red+Flayer · · Score: 2, Informative

      but if you try to manipulate your photon then it unties from the other, so you cant use it to send info faster than light.
      Not so; the problem isn't that it untangles, it's that no useful data can be sent FTL. Sure, you can change the state of the particle, and the entangled particle will also change state. But you can't determine the meaning of the changed state unless you have a traditional (read: non-FTL) communication channel to compare results of your analysis.

      Patrick Van Esch explains it much better than I can:
      all things you can measure locally are determined by the LOCAL reduced density matrix, and this matrix doesn't change when one or another measurement is performed, or not, on the OTHER system. So locally, no result (average, probability....) changes. What DOES change is the correlations between the two subsystems, but you can only find that out when you bring the local measurements together through some classical information channel (a telephone, for instance).
      --
      "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
    41. Re:One step closer to an ansible, maybe. by phaggood · · Score: 1

      it may be possible to achieve faster-than-light communication

      Seti 2.0 anyone? Maybe someone's already emailed us the cure for cancer, the common cold, and how to stop being distracted by celebrities' antics so we can *finally* move civilization forward.

    42. Re:One step closer to an ansible, maybe. by brunascle · · Score: 2, Informative

      no, you actually have to send a photon. you can create entanglement at a distance. you create it locally, then send the photon.

    43. Re:One step closer to an ansible, maybe. by Digicrat · · Score: 1

      Actually, this most closely resembles Chris Moriarty's Spin State. Of course, she did write this in 2003 so the book may have been influenced by the early articles on Quantum Entanglement transportation. Still, it was a good book.

      Just another example of the blurring of science and science-fiction. The ancient riddle of which came first, the chicken or the egg, has been supplanted with a new conundrum of "which came first, the science or the science-fiction?."

    44. Re:One step closer to an ansible, maybe. by syousef · · Score: 2, Funny

      Now if you'll excuse me, I'm going off to sleep with my highly exotic, highly energetic, and as-yet-undiscovered girlfriend.

      The infamous undiscovered cun.....no I just can't do it

      --
      These posts express my own personal views, not those of my employer
    45. Re:One step closer to an ansible, maybe. by mcarp · · Score: 2, Informative

      Mo, you ARE sending photons. You have 3 photons involved. 1 and 2 which are entangled and seperated by a distance. 3 interacts with 1 then is transmitted to 2 and then interacts with 2 in a way which preserves the original entanglement plus the changes incurred through interaction with 3. Thus transmitting the changes of interacting with 3 from 1 to 2.

      You are still left with having to transmit photon #3.

    46. Re:One step closer to an ansible, maybe. by Draveed · · Score: 1
      If the sender is from the future, shouldn't they know how to send a message in a way we could understand with our technology?

      --
      Oh, Edmund, can it be true? that I hold here, in my mortal hand, a nugget of purest green?
    47. Re:One step closer to an ansible, maybe. by TheTapani · · Score: 1

      For that particular video no original is needed. Just measure the distance between the rooftops and the object and it doesn't even shake syncronized. It just was the first one I found with that blinking (=ftl?) thing so often described, but so seldom catched clearly on tape. For footage on the real deal anyone should for instance check out the footage/investigation from Hessdalen or the films released by various military authorities (like Mexico). //T

    48. Re:One step closer to an ansible, maybe. by The+One+and+Only · · Score: 1

      Well, energy that we can use at least. We might have a problem with energy we can't control. Antimatter doesn't strike me as particularly safe.

      --
      In Repressive Burma, it's not just your connection that dies. slashdot.org/comments.pl?sid=314547&cid=20819199
    49. Re:One step closer to an ansible, maybe. by livewire98801 · · Score: 1

      Kay, I'm not reading TFA, that post just made my head explode. . .

      --
      "He may be mad, but there's method in his madness. [...] It's what drives men mad, being methodical." G.K.Chesterton
    50. Re:One step closer to an ansible, maybe. by spiffyman · · Score: 1

      I used to be a big Star Trek geek when I was in high school (I'm happily married now, FWIW, because I stopped following Star Trek in college). There, fixed that for you. ;-)
      --
      So you can laugh all you want to...
    51. Re:One step closer to an ansible, maybe. by livewire98801 · · Score: 1

      Okay, I'm throwing my Geek Card on the table. The energy created is plasma, caused by the matter/antimatter (deuterium and antideuterium, precisely) reacting in the Dilithium crystal. The matter/antimatter colliding by themselves doesn't make plasma, it makes a fiery shockwave. This is how Photon torpedoes work.

      Dilithium is kind of a catalyst in the process. I'm sure there's a much better scientific term, but I'm tired :) Without Dilithium in the reactor, you have a whole different reaction. It's called a Core Breach (breech?), and it's generally considered a Bad Thing (tm)

      --
      "He may be mad, but there's method in his madness. [...] It's what drives men mad, being methodical." G.K.Chesterton
    52. Re:One step closer to an ansible, maybe. by bh_doc · · Score: 5, Informative

      Wrong. Completely and utterly wrong. You can't send information faster than the speed of light.

      Quantum teleportation doesn't work like that. Here's basically how it works: Two quantum particles are entangled. Then they are separated from each other, one goes to point A the other to B. If you do a measurement on A and COMMUNICATE THE RESULT OF THAT MEASUREMENT to where B is. The other guy can do a special measurement on B based on what A's result was. Then the state of A becomes what the state of B was originally. The particles have not moved (the measurements have changed their states, though), but A's state has been "teleported" to B. It's all to do with the fact that the two particles were entangled in the first place.

      But the very important point is that you *still have communicate the result of the first measurement*, which means you're limited to the speed of light.

      There is still application for encryption since just knowing what the result of the measurement was is not enough without having the actual entangled particle B.

      BUT THERE IS NO APPLICATION TO STAR TREK-LIKE TELEPORTATION OR FASTER THAN LIGHT-SPEED COMMUNICATION. And frankly I'm getting tired of seeing the same wrong information getting played in the media like this. And slashdot even, come on guys, you should know better by now. I'm new here, aren't I?

      Yes, IAAQP.

    53. Re:One step closer to an ansible, maybe. by thesandtiger · · Score: 2, Funny

      This is Lord Kelvin speaking, and I agree: all that remains of physics is a few more decimal places.

      --
      Since I can't tell them apart, I treat all ACs as the same person.
    54. Re:One step closer to an ansible, maybe. by Matt_R · · Score: 1
      just think, you can be climbing mount everest when you're suddenly interrupted by a call about your home mortgage rate (are you paying too much?).

      That's already here.

      http://fe22.news.sp1.yahoo.com/s/afp/20070522/wl_u k_afp/nepalchinabritain

    55. Re:One step closer to an ansible, maybe. by Wonko+the+Sane · · Score: 1

      aren't 1 and 2 really the same photon? Isn't that what entanglement is, when one photon pretends to be two oppositely spinning photons?

    56. Re:One step closer to an ansible, maybe. by Wonko+the+Sane · · Score: 1

      The Gap Cycle - an awesome read.
      I agree, but watch out for that first book!
    57. Re:One step closer to an ansible, maybe. by brunascle · · Score: 1

      * i mean, you cant create entanglement at a distance

    58. Re:One step closer to an ansible, maybe. by Hanzie · · Score: 3, Insightful

      The above post refers to a PARALLEL UNIVERSE, and is NOT making a political statement. SF writers have long used alternate political situations to show a parallel universe that is very similar to ours, but definetly different.

      The above post deserves to be moderated as +1 humor, since it is the first to bring up the idea of the quantum entanglement communications device accidentally talking to another universe.

      The above post is absolutely not flamebait.

      hanzie.

      --
      ********* sig: If you don't like the law, get filthy stinking rich, and buy a better one.
    59. Re:One step closer to an ansible, maybe. by Omeger · · Score: 1

      In TOS, the dilithium WAS the power source of the ship.

    60. Re:One step closer to an ansible, maybe. by Grishnakh · · Score: 1

      I believe I read somewhere in one of the Star Trek books that the antimatter was actually created by the Federation as a fuel, not obtained as a raw material anywhere. It was used as a fuel because of its extremely high energy density. It was created by using energy from other sources, at less-than-perfect efficiency, which is why it was used only on starships, and not other places like on planets.

    61. Re:One step closer to an ansible, maybe. by Digital+Vomit · · Score: 1

      A wizard did it.

      --
      Modern copyright is theft of culture from everyone and it retards the progress of the useful arts and sciences.
    62. Re:One step closer to an ansible, maybe. by Digital+Vomit · · Score: 1

      I'm still not all that clear on how quantum entanglement cannot transmit information faster than the speed of light. Does it take time for the second particle to change its state (i.e. the "entanglement" travels at the speed of light)?

      Assuming entanglement works instantaneously (and this may be where I am confused), couldn't one simply assign a meaning to the change in state and, therefore, pass information faster than light?

      e.g. say a ship millions of lightyears away has a device that measures the quantum state of a particle entangled with one here on earth, and the device emits an alarm when the state of that particle, which it is monitoring, changes. The triggering of the alarm could transfer information based in the meaning assigned to it (The Cubs win the pennant, or whatever).

      What am I missing in my example?

      --
      Modern copyright is theft of culture from everyone and it retards the progress of the useful arts and sciences.
    63. Re:One step closer to an ansible, maybe. by Anonymous Coward · · Score: 0

      this is god speaking. stop looking for superluminal travel. it doesnt exist.

      So, you're not omnipresent or omnicognisant then?

      Or do you have a way of moving yourself or information that is faster than light, but is not accessible without superuser privs? In that case, all we need to do is find a priviledge escalation attack. I wonder if Lucifer can suggest one.

    64. Re:One step closer to an ansible, maybe. by Sobrique · · Score: 1

      Not if it's a quantum state receiver thingummy that hasn't been invented yet.

    65. Re:One step closer to an ansible, maybe. by bhiestand · · Score: 1

      Funny, I was about to reply to the GP with: "You know how I know you're not a quantum physicist? What you said just made sense." Since you already proved my point and proved him wrong, I don't feel there's any work left for me here. Thank you. I'm glad a few people who know what they're talking about still hang out here.

      --
      SWM seeks new sig for a brief fling
    66. Re:One step closer to an ansible, maybe. by Red+Flayer · · Score: 1

      The reason is that you can't measure the status of the particle except in correlation with its entangled particle. So, although the state can change, it can't be measured without communicating via classical channels (non-FTL) with whoever is observing the other particle.

      --
      "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
    67. Re:One step closer to an ansible, maybe. by Ctrl-Z · · Score: 1
      Seriously. Even Wikipedia knows that. From quantum entanglement :

      Although no information can be transmitted through entanglement alone, it is possible to transmit information using a set of entangled states used in conjunction with a classical information channel. This process is known as quantum teleportation. Despite its name, quantum teleportation cannot be used to transmit information faster than light, because a classical information channel is required. .
      --
      www.timcoleman.com is a total waste of your time. Never go there.
    68. Re:One step closer to an ansible, maybe. by jacksonj04 · · Score: 1

      Surely it's possible to read that teleported state change, given that if you couldn't then you can't prove that the state change was teleported at all and it's all a load of bollocks (Which wouldn't surprise me, given most physics). You must then be able to read that state as some form of data (Correct me if I'm wrong, I'm not gonna go OMG IM RIGHT THE TREK MANUAL SAYS SO!).

      Have two or more sets of entangled photons. Use one set to transmit the results of the measurement, use the other for the actual message. You can then communicate the result of the measurement (The bit which can't go faster than light in your comment) over a teleported state, and read the teleported data from the other set of photons.

      IANAQP, so thanks for the more detailed explanation of why it won't work with a single photon, but what about using several?

      --
      How many people can read hex if only you and dead people can read hex?
    69. Re:One step closer to an ansible, maybe. by Digital+Vomit · · Score: 1

      The reason is that you can't measure the status of the particle except in correlation with its entangled particle. So, although the state can change, it can't be measured without communicating...with whoever is observing the other particle.

      Finally, a clear explanation. Thank you, sir.

      But does the entanglement cause the state of the second particle to change instantaneously, according to theory?

      --
      Modern copyright is theft of culture from everyone and it retards the progress of the useful arts and sciences.
    70. Re:One step closer to an ansible, maybe. by Snufalufagus+Prime · · Score: 1

      I was replaying Half Life 2 last night, and I remember the term "entanglement" used in relation to teleportation.

      --
      "Outside of a dog, a book is man's best friend. Inside of a dog, it is too dark to read." -Groucho Marx
    71. Re:One step closer to an ansible, maybe. by ConceptJunkie · · Score: 1
      Thanks, Hanzie. I'm glad _someone_ gets it.

      Actually, it raised an interesting question. Let's say Quebec (or any other place) did become a state, and someone who was born in that place before it was part of the U.S. wanted to become President. I guess they wouldn't be allowed because of the requirement that the President be a native-born American.

      Actually, I just looked it up:

      No Person except a natural born Citizen, or a Citizen of the United States, at
      the time of the Adoption of this Constitution, shall be eligible to the Office
      of President;


      So someone born in that new State before that State was a State _would_ be eligible to be President, or in fact lived in that State at the time it becomes a State. Of course, it occurred to me that none of the Founding Fathers could have been natural-born U.S. Citizens since there wasn't a U.S. at the time, and I imagine some of them were even born in England or elsewhere.

      So the Senator of Quebec, assuming he or she was a Quebecois[e] at the time it became a State could become President. Of course, I'm sure any Quebecoix in this reality would scoff at the idea.

      For my next trick, I will solve the legal status of the AI's invented by President Gore.

      --
      You are in a maze of twisty little passages, all alike.
    72. Re:One step closer to an ansible, maybe. by brunascle · · Score: 1

      Van Esch is describing how to set up a 2-part communications system that involves entanglement and a classicial channel. he's not explaing why you cant just use entanglement (or at least he's not doing a very good job of it).

      the fundamental reason you cant use entanglement to send info FTL is because the aspect in which the particles are entangled is one you have no control over. the only way to send data would be to control what state the particle collapses into, and you cant do that. what you would try to do is first observe what state the particle is in (collapsing the wave function), and then either keep the same state or change it to the other state, so that it's in the state you want it. but if you change its state that doesnt have any effect on the other particle. so you cant send info.

      to have a 2-part communcations system that involves entanglement and a classical channel, you send one of the photons to your buddy. you observe what state your photon is in, then you tell your buddy if it's the state you were looking for or the opposite of what you were looking for. both you and your buddy will observe the same state in the photons, but neither of you can control what that state is.

      the problem people have grasping this is that they think of each of the photons as having their own wave function, and that when you observe one the other one instantaneously collapses and aligns with the first one. that's not what happens. there is only 1 wave function, and it involves both particles. the other particle does not align with the first when you observe the first, it was already aligned. it became aligned when you first entangled them at the original location.

      make no mistake people. when you observe your particle, absolutely nothing is being sent to the other particle.

    73. Re:One step closer to an ansible, maybe. by Anonymous Coward · · Score: 0

      Actually, naw, it means if you were a citizen of the United States in 1789, not whenever your state joined the union. It's often jokingly called the "Hamilton Loophole."

    74. Re:One step closer to an ansible, maybe. by Bandman · · Score: 1

      Sure. Almost everything is in place except for the tricky little heisenburg compensator ;-)

    75. Re:One step closer to an ansible, maybe. by Red+Flayer · · Score: 1

      Yes the change is instantaneous. I was throughly confused about this until the last thread with quantum entanglement in TFA... so I'm no expert.

      --
      "Trolls they were, but filled with the evil will of their master: a fell race..." -- J.R.R. Tolkien on Olog-hai
    76. Re:One step closer to an ansible, maybe. by kalirion · · Score: 1

      Hmm, reading GP I got the impression that it was about communicating with the future, not some alternate version of the present.

    77. Re:One step closer to an ansible, maybe. by brunascle · · Score: 2, Informative

      the state of the second particle doesnt change. period.

      there is 1 wave function. you're not observing one of the particles, you're collapsing the wave function.

      when you first entangled the two particles, you made it so that they both had to have the same property. and you sent one of the particles to your buddy. because you were careful about sending it, and making sure it didnt bump anything else, you know that they still have to have the same property. you dont know what that property is yet, because you havent looked. then, you look.

      this is exactly like taking two balls, a red and blue one. you mix them up and mail one to your buddy, without looking at either one. you know that if you look at yours and it's red, then your buddy's must be blue. but you havent looked yet.

      now stop. dont think ahead. the two situations are exactly the same. now move ahead, and everytime you find yourself wondering how the first particle affects the second, remember the red and blue balls.

    78. Re:One step closer to an ansible, maybe. by Digital+Vomit · · Score: 1

      And we know it's instantaneous only because that's predicted by theory? (since it would be impossible to test this in any FTL manner, if the entangled particles must be measured in tandem) How do we *know* the change is instantaneous?

      Additionally, assuming the change *is* instantaneous, the change in state must have *some* measurable effect. You may not be able to measure the status of the particle except in correlation with its entangled particle, as you explained, but surely the change in state must affect the universe around it? Couldn't you, instead, (assuming sufficient technology), measure the effect the change in state has on its surroundings?

      My point is that if the change in state is instantaneous, then information *has* been transmitted faster than the speed of light. Whether we can also access that information instantaneously is another matter.

      Anyone know any good websites that talk about this stuff?

      --
      Modern copyright is theft of culture from everyone and it retards the progress of the useful arts and sciences.
    79. Re:One step closer to an ansible, maybe. by tehcyder · · Score: 1

      IAAQP
      That's easy for you to say.
      --
      To have a right to do a thing is not at all the same as to be right in doing it
    80. Re:One step closer to an ansible, maybe. by pragma_x · · Score: 1

      Thank you for posting this. I visited this thread expecting something like this to be the first post - the summary certainly set off my crap detector.

      So yes, teleportation doesn't give us any advantages with respect to communication latency. But one question has tickled my brain since the concept was first made clear to me: is it still possible to send information reliably (over 50% reliability), and repeatedly, via entanglement of particles? Even more imporantly, is it possible to use this in parallel to create some kind of mega-bandwidth link*?

      (*Personally, I doubt it since you still have to send all the individual observations conventionally. But since you're the QP, I figured I'd ask)

    81. Re:One step closer to an ansible, maybe. by Digital+Vomit · · Score: 1

      You had me at "you're collapsing the wave function".

      The red/blue billiard balls analogy is nice, too. It all makes more sense now that I understand the two entangled particles would have different properties, as opposed to the same property, when one of the particles is "observed".

      Thanks. I hope you guys get modded accordingly. :)

      --
      Modern copyright is theft of culture from everyone and it retards the progress of the useful arts and sciences.
    82. Re:One step closer to an ansible, maybe. by xappax · · Score: 1

      As if! All WonkaVision broadcasts are protected by Tastes4Sure WonkaDRM - try recording that and you'll get a visit from some particularly nasty oompa-loompa lawyers.

    83. Re:One step closer to an ansible, maybe. by inKubus · · Score: 1

      Dear Boss:

      After hearing about the successful teleportation of state information from a distance of 89 miles, I propose we at Acme Labs attempt the new world record for sucessful teleporation of state information distance. I propose instead of using the 89-mile-apart Canary Islands we use the islands of Hawaii (in the US) and an island in the Carribean. Of course, I will need a large support staff and group of friends and my wife might interfere with the matter transferrence. She must stay at home. Also, we will need large quantities of Rum to cool the quantum entanglement apparatus. Also, we will need approximately four (4) years of pay in advance to cover any living costs. I think we can do it this time.

      Sincerely,
      Dr. Smith.

      --
      Cool! Amazing Toys.
    84. Re:One step closer to an ansible, maybe. by ConceptJunkie · · Score: 1

      Actually, Anonymous, I think you're right. I took it to mean when the state adopted the Constitution.

      --
      You are in a maze of twisty little passages, all alike.
    85. Re:One step closer to an ansible, maybe. by bh_doc · · Score: 1

      For your first question: I'm not so sure about the fundamental limits there, but the practical limits are improving all the time.

      For your second question: yes. It's called Superdense coding. Wikipedia puts it succinctly: Superdense coding is a technique used in quantum information theory to send two bits of classical information using only one qubit, with the aid of entanglement.

    86. Re:One step closer to an ansible, maybe. by bh_doc · · Score: 1

      Sorry, it's not possible to read the teleported state change. The reason is that as soon as you measure particle A without regard to the result of a measurement of particle B the entanglement is practically lost.

      You need the joint measurements of A and B in combination (either the result of A determines how B is measured, or vice versa). If you didn't know the result of the first, then you can't be sure how you're supposed to measure the second, and you could well pick the wrong measurement. Then the result will be completely random.

      The reason we know it's not bollocks is because after all the measurements there are clear correspondences between the results. If there was no teleportation, these correspondences would be different. If there was no entanglement, there wouldn't be these correspondences at all.

      Thus it won't extend to multiple photons like you describe. There are other tricky teleportation schemes using multiple photons, though, like superdense coding which I mentioned in another comment.

      Not that it's not understood, or that the maths doesn't make sense, or that nature doesn't fit its predictions, but quantum mechanics is weird, counter-intuitive stuff. Niels Bohr, one of the pioneers of QM: "If quantum mechanics hasn't profoundly shocked you, you haven't understood it yet."

    87. Re:One step closer to an ansible, maybe. by pragma_x · · Score: 1

      Thanks for taking the time to reply. It looks like I have some reading to do. :)

  29. No it doesn't by beavis88 · · Score: 0, Flamebait

    But hey, this is Slashdot after all, so I guess I should just be lucky this article isn't both a dupe and accompanied by a misleading headline.

  30. All they teleported was Data? by Megane · · Score: 1

    A team of physicists has teleported data over a distance of 89 miles

    Wake me up when they teleport Lore too.

    --
    #naabhaprzrag, #sverubfr-000, #agi-fcbafberq, negvpyr[pynff*=' negvpyr-ary-'] { qvfcynl: abar !vzcbegnag; }
  31. 'tis uncertain... by Namlak · · Score: 3, Funny

    Have these guys who wrote the summary heard of the Heisenberg uncertainty principle?

    Yes, but as soon as they heard of it, they couldn't locate it.

    1. Re:'tis uncertain... by ArsonSmith · · Score: 1

      That's what I hate about wikipedia, too.

      --
      Paying taxes to buy civilization is like paying a hooker to buy love.
  32. But is it useful information? by xerent_sweden · · Score: 1

    I was under the impression that there are a lot of laws in quantum mechanics that perhibits real information to be sent through quantum entanglement. If any information would be sent this way, it would appear that the information has actually travelled back through time - and that's impossible. If you have two entangled electrons, one with spin up and one with spin down, and the're existing as waves, you don't know which one has the spin up and the spin down. Now put the electrons in a box each (together with Schroedingers cat, perhaps) and put one in another galaxy. Now if you look at one of the electrons and that one has a spin up, you know that the other one must have a spin down, even though it's in another galaxy. The other electron doesn't even know this, it's still a wave in a box until someone looks upon it and it's suddenly a spin down. Hence the "spooky" part. However this information is useless to you. You have no way of telling the other guy in the other galaxy what spin his electron has because it would take millions of years for any message to reach him. Spin is also completely random, it's 50%-50%. So even if you have lots of electrons with spins, they're just noise, let alone exactly the inverse of the noise the other guy has in the other galaxy. But noise is noise and does not contain any information. So even if the other guy waits millions of years until he looks in the box to obtain information he already knew, the information is already useless to you for any practical purposes. So how can one send information with photons?

    1. Re:But is it useful information? by Anonymous Coward · · Score: 0

      Certainly information can be encoded with the spin of an electron, in the same way information can be encoded with its charge. There is also a technique for determining the spin of an electron.

  33. "Star Trek style transporter" by grumpyman · · Score: 1

    What are the other styles of transporter that's available now?

    1. Re:"Star Trek style transporter" by Pitr · · Score: 1

      Asguard?

      --

      --Not to be worried, Pitr fix.
  34. Actual article title and author by Anonymous Coward · · Score: 2, Informative

    TFA mixed up both the author's name and the journal this work was published in. The author's real name is Rupert Ursin (not Robert), and the article was published in Nature Physics Online, not Nature Physics (those are separate journals). The article itself is available here as a pdf.

  35. Refactor English! by Tablizer · · Score: 1

    Ugh... it's "The Independent". Now we can't even copy the names of publications correctly without misspelling them

    I've concluded that English does not need most vowels. It needs a placeholders. Example:
    "Independ*nt". If the vowel does not contribute to the sound, then replace it with an ast*risks (or some other chosen character). "Hum*r" (not to be confused with Humm*r) is another one that doesn't need a fricken vowel there. The problem is not the spellers, but the language.

    1. Re:Refactor English! by Belacgod · · Score: 1

      The vowels that are confusing in that way are the ones pronounced with a schwaa (the "uh") sound. English has it, but many languages don't. It would be interesting to create a new letter to signify the schwaa, but I think it'd be too much trouble. And from studying Arabic, I assure you that keeping a diversity of vowel symbols is a very good thing.

    2. Re:Refactor English! by bill_mcgonigle · · Score: 1

      It would be interesting to create a new letter to signify the schwaa, but I think it'd be too much trouble.

      An upside down 'e' is used to signify a schwa. ə would render it if Slashcode wasn't so unicode-retarded.

      --
      My God, it's Full of Source!
      OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    3. Re:Refactor English! by Ant+P. · · Score: 1

      If we replaced all silent vowels with punctuation characters, the C programmers would throw a fit.

    4. Re:Refactor English! by Tablizer · · Score: 1

      And from studying Arabic, I assure you that keeping a diversity of vowel symbols is a very good thing.

      I am not proposing eliminating them, only not using them *where* they are not really used in spoken.

  36. Obligatory reference: by Craig+Maloney · · Score: 1

    Walter: A laser dismantles the molecular structure of the object and the molecules remain suspended in the laser beam. Then when the computer lays out the model the molecules fall back into place and... voilà!

    Alan: Great! Can it send me to Hawaii?

  37. Transporters won't ever happen by mbadolato · · Score: 2, Funny
    Perhaps it will some day be technologically possible, but it won't ever happen in reality. Scott Adams (Dilbert) said it perfectly:

    It would be great to be able to beam your molecules across space and then reassemble them. The only problem is that you have to trust your co-worker to operate the transporter. These are the same people who won't add paper to the photocopier or make a new pot of coffee after taking the last drop. I don't think they'll be double-checking the transporter coordinates. They'll be accidentally beaming people into walls, pets, and furniture. People will spend all their time apologizing for having inanimate objects protruding from parts of their bodies.

    'Pay no attention to the knickknacks; I got beamed into a hutch yesterday.'
    1. Re:Transporters won't ever happen by Bullet-Dodger · · Score: 2, Funny

      I teleported home one night
      With Ron and Sid and Meg.
      Ron stole Meggie's heart away
      And I got Sidney's leg.

      -Douglas Adams

  38. Oh, no! by Anonymous Coward · · Score: 0

    Their transporter has just made my space elevator obsolete. My company is doomed.

    When will the relentless pace of technology ever stop?

  39. I would just like to say by Anonymous Coward · · Score: 0

    That I called quantum entanglement as a method of getting around Heisenberg and his principle of uncertainty. Ok, well I stole it from Gene Roddenberry's Andromeda, but the point is I still said it was the way to go.

  40. Re:Space Dinosaur sez by Lord+Bitman · · Score: 1

    Balance the equation!

    --
    -- 'The' Lord and Master Bitman On High, Master Of All
  41. *bzzt* wrong by TeaSeaLancs · · Score: 1

    What this doesn't offer us is anything anywhere near close to matter teleportation. What this kind of thing can be used for, and correct me if i'm wrong, is something quite similar to the Affinity communication method used in Peter F. Hamilton's Night Dawn Trilogy. http://en.wikipedia.org/wiki/Night's_dawn_trilogy# Edenist_culture Now THAT i'm interested in. Teleportation be damned, pseudo-telepathy is where it's at!

  42. So we're teleporting data... I can live with that! by dlthomas · · Score: 1

    What I would like to see, and it seems that a sufficient refinement of this type of technology could allow it, is a near-zero latency connection between my laptop and my computer. I use my laptop largely as a dumb-terminal anyway, and not having to worry about having a connection/other people's networks, etc sounds lovely, particularly if I've got the bandwidth to do nice things. As an added bonus, we get to free up some amount of the broadcast spectrum for things that are actually broadcasting. Anyone with more education about the technology know what will get in the way of such?

  43. Repeat after me... by jdigriz · · Score: 1

    Quantum teleportation of information is *not* what the sci-fi and fantasy communities refer to as teleportation.

  44. Ok, this is just dumb by harris+s+newman · · Score: 1

    Ok: 1) Data is not particles. 2) I transport data all the time on the internet 3) It's not spooky You take this article and not mine? Give me a break. I thought only digg posted shit like this.

  45. We will have Star Trek transporters by Cro+Magnon · · Score: 1

    when I can get tissues by asking "Beam me up scotties".

    --
    Slow down, cowboy! It has been 4 hours since you last posted. You must wait another few hours.
  46. Heisenberg Compensators by Dystopian+Rebel · · Score: 1

    The transporter system is well conceived. There are the Heisenberg Compensators, as well as the equalizer-like control with two sets of five sliders so the person controlling the transporter can use all his fingers to adjust your molecular re-assembly in case he notices a problem such as your good and evil sides being separated.

    --
    Rich And Stupid is not so bad as Working For Rich And Stupid.
  47. Good News: We can dissassemble your body by WillAffleckUW · · Score: 2

    atom by atom, and send information on what component parts were and where they were located.

    Next we can put it back together.

    You'll still be dead, no longer a functioning biological biochemical organism which is in constant motion and has altering states of being at the nanosecond level, and you'll still have died in agony while we ripped your body apart.

    But now we can bury you on the other end!

    --
    -- Tigger warning: This post may contain tiggers! --
  48. Not holding my breath... by Thaelon · · Score: 1

    First, I'll admit to not reading the article. This is slashdot, after all.

    The problem with transporting people is, you have to take a "snapshot" of them, then reconstruct it somewhere else, right?

    There's one, big, big problem with that. The snapshot is just that, a still image.

    Think frozen in time. The key word being "frozen". As in not moving at all on the subatomic level. As in frozen solid at absolute zero, and very, very dead. All chemical reactions that take place every nanosecond you're alive stop. Upon being recreated in a presumably hospitable environment you'd also most likely shatter due to the extreme heat differential between your absolute zero body and the balmy ~72F degree air.

    --

    Question everything

    1. Re:Not holding my breath... by Pitr · · Score: 1

      I'm pretty sure you're way off base on that one. You're taking a "snapshot" of every property of every atom/sub-atomic particle in an object, and reassembling it. Which would by proxy include thermal properties.

      Also, when you make a sculpture from clay, the clay doesn't magically freeze because it's a still, it started at room temperature, so it stays there. So the "stuff" (technical term) you reassemble someone with just needs to start at room temperature, or whatever temperature is appropriate.

      If we're talking about the rediculous ammount of power required to break a person down, and reconstitute them, and the unfathomable ammount of data involved, I think making sure we get the temperature right should be child's play by comparison.

      --

      --Not to be worried, Pitr fix.
    2. Re:Not holding my breath... by Drantin · · Score: 1

      Clay is a bad analogy; it still has particles moving precisely because it is at room temperature. (even at a temperature of 1K there is some movement, not much, but still)

      The only way you could teleport someone would be to have the reconstruction be instantaneous. If you didn't then the part that was just reconstructed wouldn't match up to the next piece quite right. If you didn't you'd either end up frozen and dead, or mushy and dead. (with lots of blood all over...

      --
      Actio personalis moritur cum persona. (Dead men don't sue)
    3. Re:Not holding my breath... by Thaelon · · Score: 1

      You're misusing the term "thermal properties" when I think you mean "heat". And "by proxy" nothing. What proxy are you referring to? Thermal properties are innate in an object and rarely change without physically deforming the object. The "thermal properties" of an object have absolutely nothing to do with the particular direction and speed with which all of it's constituent particles are moving (heat).

      Making the "temperature right" would require accelerating every single atomic particle back to it's original speed AND direction. And Heisenberg's uncertainty principle says that we can't possibly measure them both correctly, so forget about restarting them. And if you get the direction or speed wrong, the chemical reactions would go awry or stop altogether.

      Do you know what words mean?

      --

      Question everything

    4. Re:Not holding my breath... by Pitr · · Score: 1

      Actually I chose clay for exactly that reason. The particles you use to reconstruct someone/thing, whether you make the particles or just have tanks of them or something, would be of whatever temperature they're at, not suddenly become absolute zero as the original post suggested.

      I don't know if it would need to be "instantaneous". There's a bunch of possibilities, especially if you have some idea of the quantum state you started with, which should "in theory" let you figure out what it would change to for the next time slice (Planck Second?) when you make the next atom/molecule/whatever. It's all kinda sementic until you actually have a "this is the method we've decided to try" type of theory in front of you. That having been said, I think it's a given that any miscalculations would end up with a very thorough mess of whatever you were originally trying to transport.

      --

      --Not to be worried, Pitr fix.
    5. Re:Not holding my breath... by Pitr · · Score: 1

      You really like to argue about nothing don't you?

      Ok, from the top now...

      You say "thermal properties" really means "heat", then say "thermal properties" have nothing to do with "(heat)". Huh?

      Ok, let me be clear here. The speed and direction of a molecule's motion would be the "properties" that govern the "heat" it has stored, hence they could be called... that's right, "thermal properties". I suppose I could have just said "the motion and direction of the molecules, which determines the substances heat", I guess I'll know better next time.

      I never said anything about the feasibility of transportation, Heisenberg's uncertainty principle, or anything else. Just that stuff won't suddenly freeze if you _could_ transport it, because the "snapshot" you take (asuming you can take one) will (in theory) include information pertaining to the temperature of the object.

      It's really funny that you'll jump all over my head for saying "thermal properties" but think mystery freezing is perfectly acceptable.

      --

      --Not to be worried, Pitr fix.
  49. Sure, why not? by Phat_Tony · · Score: 1

    Sure, this technology may be one of the steps on the road to transporter technology. Perhaps it also brings us a step closer to immortality, or artificial intelligence, or revealing the true nature of "god" and the ultimate origin and purpose of the universe.

    In fact, many of the new technologies invented every day are probably steps on the road to these sorts of things! How exciting! Let's post it to Slashdot next time someone improves the mousetrap, and call is a step towards achieving human symbiosis with an intergalactic hyper-intelligent hive mind.

    --
    Can anyone tell me how to set my sig on Slashdot?
  50. Ok. Dumb! by Anonymous Coward · · Score: 1, Interesting

    Yes, it does.

    Transpoting data, in first place, means *having* that data.

    Having the data goes hand in hand with *measuring* the data.

    And measuring the data is exactly the thing you can not with with sufficent accuracy as to produce an exact copy of an object somewhere far, far away (uncertainty principle: you cannot measure a physical quantity and its conjugated counterpart, e.g. positionmomentum, at the same time). More than that, measuring one quantity irrevocably destroys its conjugated counterpart.

    Cloning the original object, measure one quantity on one object and the other quantity on the other object has been proven to be impossible.

    Here's where teleportation kicks in: using pairs of entangled particles (or entangled photons, or entangled whatever) however enables you to transport the exact properties of an object *without* having to measure those -- it's a kind of a trick :-)

    It works like:

      Object A --- Pair of entangled Photons 1+2 --- Puppet B

    where "Object A" is the original, and "Puppet B" is some kind of a "blank" form, which will later receive the properties of A (think of it as of a blank CD-R).

    [1+2] is a pair of entangled photons (or atoms, or whatever... doesn't really matter for the theory). "Entangled" means that they have lost any identity they've had for themselves, their only existance makes sense if they are regarded as a *pair*.

    What you do to perform teleportation is "entangle" A with 1 and then measure the properties of the system [A+1]. Of course, by measuring [A+1] and thus somehow measuring properties of 1, you destroy the entanglement [1+2]. But, because [1+2] were entangled at the point you did the measuring, by touching photon 1 you also touch photon 2. Thereby you suddenly change properties of photon 2 -- you still don't know exactly *what* you really did to photon 2, but whatever it was, it happened at the very instant you measured/entangled [A+1]. This step is the actual teleportation.

    The magic lies in entanglement of A with 1. It can be shown that the state you sent photon 2 by breaking the entanglement depends on the state your original object A was in -- even with all it's non-measurable properties. This still won't give you any information about what *was* A in the first place, but, whatever it was, now you know it is somehow "mangled" into 2. And quantum mechanics even tells you how exactly it was mangled. All you need to know to re-contstruct the original state of A into the dummy B using information from 2 is another piece of information, namely some numbers you gathered when creating the entaglement [A+1].

    This way, you do have a "spooky action at distance" (because the unknown information about particle A was instantaneously transfered to photon 2 at a given time), but you cannot use this to effectively break relativity, because that information is encoded in 2 in a way you can not possibly use it, unless somebody "phoned" you the result of a local measure [A+1].

  51. what's the difference between matter and data? by ToastyKen · · Score: 1

    But it seems to me that 'transporting' data, whether or not using quantum entanglement, isn't quite the same thing as transporting matter and really brings us no close the 'transporter' technology as seen on Star Trek.

    Are they really different though? In Star Trek, the idea is that your body gets broken down into "energy" first, and then you're "reassembled" at the destination. But if you're broken down into constituent parts, does it really matter if the same actual photons or whatnot are the ones that get reassembled? On photon is just as good as another. What really matters is the DATA that gets recorded when you're broken down. It's the DATA that allows those photons to be reconstructed into you at the other end.

    So really all a Star Trek transporter does is record your makeup (which might not really be possible, Uncertainty Principle and all), disintegrate you (i.e. killing you), and then creating a copy of you somewhere else. (Whether the copy is made from the same particles from the disintegrated you or not is pretty much irrelevant.)

    At least, that's how I've always seen it. Now the REALLY interesting question is whether it actually makes a difference to your consciousness if you get killed in one place and reconstructed somewhere else or not. It might not be so different from waking up from a coma or something, right? Or even sleep. Maybe every time you sleep, your brain actually dies, and a new you is reconstructed. Who knows! And does it matter?

    I think we'll find that, in the end, all that really matters is information. All that really matters is the data.

    1. Re:what's the difference between matter and data? by Sobrique · · Score: 1
      I have more difficulty with the 'mind state' transportation. I mean, your brain doesn't ever shutdown and quiesce it's activity, so you're always going to have 'information in transit' down your synapses.

      So, not only do you have to be able to measure (heisenberg willing) the state of every atom in the body, you also have to do so in an infinitesimal amount of time, or risk data loss.

    2. Re:what's the difference between matter and data? by ToastyKen · · Score: 1

      What about when people have general anaesthesia? I don't really know what happens in the brain then, I guess, but I imagine a fair amount of it might shut down? This is one of the reasons general anaesthesia freaks me the hell out. :P

  52. no, it doesn't by nanosquid · · Score: 1

    Quantum "teleportation" is an interesting phenomenon, but it has little to do with Start Trek style transporters.

  53. Re:What I don't get about quantum entanglement is. by Anonymous Coward · · Score: 0

    >Isn't it like having a pair of shoes, and you separate the shoes into two boxes. You then
    >you take your shoe in a box away, and upon opening the box you observe that you have the
    >left shoe.

    Best
    Analogy
    Ever

    However, I think the problem is that a shoe is a macroscopic object. Like Shrodinger's Cat, in reality it can't be two things at once. It's just a way they explain the weirdness of quantum physics, which only works at a very tiny scale.

    What I'd like to know is why common sense applies at the big level, but doesn't at the tiny level.

  54. So... by DeeVeeAnt · · Score: 1

    Just another few billion steps to go then?

    --
    Home fucking is killing prostitution.
  55. Two Magic Objects or Lots of Dumb Humans? by bill_mcgonigle · · Score: 1

    two photons can be created in such a way that they behave as a single object, even if they are separated by large distances.

    Sure, they look like two objects to you, but only because you don't understand the underlying structure of the universe. :)

    I'm only half-kidding - how this works is a great open question.

    --
    My God, it's Full of Source!
    OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
    1. Re:Two Magic Objects or Lots of Dumb Humans? by modecx · · Score: 1

      You just have to remember to correctly initialize your quantum-entangled photon pairs. Universal segfaults are generally regarded as bad things, Mmmkay?

      --
      Constitutional rights may be respected, repealed, or modified; but they must never be ignored.
  56. Hey Guys, Be Careful Up There! by bill_mcgonigle · · Score: 1

    For those who don't follow such things, La Palma's volcano is going to collapse into the ocean in the next several centuries and probably smack the Eastern US with a massive tidal wave when it does.

    I guess that's one way to answer the "do we protect existing coastal development?" question in a global warming scenario.

    --
    My God, it's Full of Source!
    OUTSIDE_IP=$(dig +short my.ip @outsideip.net)
  57. Misleading All Around by Nom+du+Keyboard · · Score: 1
    I don't expect to see a Star Trek-style "Transporter" within my lifetime, or ever afterwards. Such a device would either involved creating something from nothing at the receiving end, or sending down so much matter in the form of energy that it would make Global Warming look like a tiny candle in comparison each time it was performed. For the article to even imply otherwise is complete garbage!

    P Of course, I'd love to be proven wrong.

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
    1. Re:Misleading All Around by Nom+du+Keyboard · · Score: 1
      yeah, there was a bunch of naysayer fucktards just like you saying the same thing of human flight about 150 years ago.

      You know, I have yet to see human flight. Airplane flight, sure, but never human flight on any trajectory except a long curve into a hard landing. YMMV.

      --
      "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
  58. Not invoking the supernatural... by PRMan · · Score: 1

    (assuming we're not going to invoke the supernatural)

    That's a big assumption. And you'd better pray you're right.

    --
    Peter predicted that you would "deliberately forget" creation 2000 years ago...
    1. Re:Not invoking the supernatural... by Anonymous Coward · · Score: 0

      rofl

      you jesus freaks.

      There's nothing there. get over it.

    2. Re:Not invoking the supernatural... by Anonymous Coward · · Score: 0

      Nothing fails like Prayer...

    3. Re:Not invoking the supernatural... by Anonymous Coward · · Score: 0

      You convinced me!

    4. Re:Not invoking the supernatural... by Anonymous Coward · · Score: 0

      Exactly. That guy's going to be in for a rude awakening when he's banished to one of the darker regions of Hades. That's why I give 10% of my income to the temple of Athena. She will surely protect me through the after-life.

  59. Its all in the time travel... by javabandit · · Score: 3, Insightful

    First off, I've never slammed an article headline in all the time I've been here at Slashdot, but I'm doing it now. How in the hell is transmitting data even remotely a step in the direction of transmitting matter? Puhleeze. A step closer to teleporting matter would be to vaporize a small animal and then "shoot" the particles 89 miles away -- perhaps.

    Secondly, as others have posted, it ain't gonna happen. Teleporting matter by breaking it down and reconstructing it on the other end ain't going to happen. There are so many holes in that approach that its not funny.

    I read a couple of interesting magazine articles on teleportation, and the key to teleportation is really time travel. Teleportation would be sending someone on a time-ride, bending the space-time continuum, have them "arrive" at the exact physical destination but still in the same temporal location in which they left. That is the key. However, the big problem with this approach is that the matter being transported will still age the amount of time is took the "time ride" to occur. Still, any teleportation is a feat the will probably never be accomplished.

    But let me go on record as saying that rather than for science to focus focusing on teleportation or time travel seems moronic. How about we just focus on building some kind of high-speed passenger transport mechanism that travels at supersonic speeds (something like Mach 3 or Mach 4)?

    Personally, I'd be just fine if I could go from Los Angeles to New York in one hour. And that seems like a much more achievable goal.

    1. Re:Its all in the time travel... by Anonymous Coward · · Score: 0

      Still, any ship without sails is a feat that will probably never be accomplished.

      But let me go on record as saying that rather than for science to focus on some sort of windless ship seems moronic. How about we just focus on building some kind of high-speed passenger transport mechanism that has a few dozen masts?

      Personally, I'd be just fine if I could go from Portsmouth to New York in two days. And that seems like a much more achievable goal.

      Protip: There's not a set amount of "science" that can only be spent on one thing at a time. Amazingly enough, there are people working on high-speed planes at the same time that other people are working on teleportation.

    2. Re:Its all in the time travel... by Geoffrey.landis · · Score: 1

      I have to agree. The "teleportation" discussed in physics articles has nothing whatsoever to do with science-fiction teleportation. It is a buzz word that means copying a quantum state and reproducing it in a different atom (or photon, or electron) somewhere else. It's "teleportation" in the same way that sending a fax is "teleporting" an image. By an oddity of quantum physics (the "no clone" theorem), when you copy quantum information, you erase it, so when you reproduce a quantum state in a distant atom, the state is erased in the orginal atom. So in some metaphysical sense, the "information" in that quantum state was moved. But the atom itself was not moved; the atom had to be already there. You don't move atoms by "quantum teleportation", you move information.

      --
      http://www.geoffreylandis.com
    3. Re:Its all in the time travel... by Aris+Katsaris · · Score: 1

      How in the hell is transmitting data even remotely a step in the direction of transmitting matter? Because data aren't just transmitted, in the sense of being copied, they are actually transferred, being removed from their original location. You create a physical replica of the object (minus quantum state) somewhere else. You then transmit the quantum state, automatically destroying it in the original object. The object at the destination now is indistinguishable from the object that used to exist in the origin. The non-copiable quantum state remains unique. If human consciousness is connected with this quantum state at all, this gives you a way of transferring human consciousness to an appropriate receptacle.

    4. Re:Its all in the time travel... by Chris+Burke · · Score: 1

      First off, I've never slammed an article headline in all the time I've been here at Slashdot, but I'm doing it now.

      You must be new here. We have a headline like this -- quantum entaglement is like Star Trek transporters!!!! -- every few months.

      And every time it's the same: No, this isn't anything like transporters. It can't be used for transporters. In fact it can't even be used for FTL communication, no "sub-space communication" ala Star Trek either.

      Anyway, I doubt the researchers really think they're on the trail of a transporter.

      --

      The enemies of Democracy are
    5. Re:Its all in the time travel... by localman · · Score: 1

      Or we might develop some type of completely convincing VR setup that allows me to say, rent a robot in Korea that will act as me and I'll experience exactly what it experiences from the comfort of my own home. At some threshold of sensory accuracy, it would be about as good as being there. That may be as close to teleportation as we need to get.

      Cheers.

    6. Re:Its all in the time travel... by Anonymous Coward · · Score: 0

      "Teleporting matter by breaking it down and reconstructing it on the other end ain't going to happen. There are so many holes in that approach that its not funny."

      Bwahahaahaha!

      http://www.everything2.com/index.pl?node_id=174681 7
      "So many holes..." oh dear me...

    7. Re:Its all in the time travel... by javabandit · · Score: 1

      You're comparing a "windless ship" to the concept of sci-fi teleportation? I have to call bullshit on you. I totally understand the point that you're making -- yesterday's windless ship is today's teleportation -- but I don't quite think those concepts/leaps are very equal.

    8. Re:Its all in the time travel... by javabandit · · Score: 1
      Dude, you aren't even saying what the article is. From TFA:

      "... the fact that two photons can be created in such a way that they behave as a single object, even if they are separated by large distances. In behaving in this way they are acting as a teleportation machine because any changes to one causes similar changes to the other. The way this is done is via a third photon, which is teleported from the photon in the transmitting station to the photon in the receiver.

      In the process, the third photon becomes entangled with the transmitting photon and so carries its quantum information to the receiving photon, which interacts with the third photon in such a way that it becomes identical to it - hence the information is successfully transmitted."

      Now, they do a convenient job of redefining teleportation by saying that the receiver behaves like the transmitter -- therefore it is teleportation. That isn't teleportation in any real sense. Creating a similar quantum state isn't teleportation. Making a clump of matter behave like an originating clump of matter isn't teleportation.

      Let's be clear. Teleportation, as we define it in the sci-fi sense, is the moving matter from one place to another instantaneously. That's not what this article describes.
    9. Re:Its all in the time travel... by Anonymous Coward · · Score: 0

      There has been a lot of posting saying that data can be transmitted via collapse of quantum entangled particles. My understanding is this is not true--as the physicist who replied earlier stated, detecting one of the particles only forces the other entangled particle to instantly (faster than light, thus violating causality) resolve to the other state (the physicist said the opposite state, but I think more correctly might be the orthogonal state in a two state entangled system).

      But note carefully that the first particle has a random chance of being *either* state, so it's not possible to send data with this system. In fact there is a theorem which I believe has been shown to be true that quantum entanglement not only cannot violate causality (ie, transport faster than light) with mass, more importantly it cannot violate causality of *information* (another word for data). One poster here thought there might be a way to make a morse code system that violates causality, but even that's not possible--if you resolve one particle first, the person watching the other particle cannot know (faster than light) that you resolved it, you will just know (faster than light) what he will eventually see when you resolve your particle.

      For example, if he is at the opposite end of the galaxy and you resolve your particle, you will know instantly what he will see if, one nanosecond after you resolve your particle, he resolves his. BUT--whoever resolves the particle first will have a random chance of seeing either state. This is not a system that permits information transmission with any of the methods we currently have, even in theory.

      So in summary--as I read it, the experimenters have not shown anything new, they've just extended the experimentally verified distance that the collapse of quantum entangled states resolves non-causally. Spooky, yes, but in no way takes us closer to teleporting anything useful..

      Agemoz wannabee physicist

    10. Re:Its all in the time travel... by BendingSpoons · · Score: 1

      I read a couple of interesting magazine articles on teleportation, and the key to teleportation is really time travel.
      Someone get this man a research grant!
      --
      For all we know the moon may be as conscious as a poet or a realtor, and extremely weary of its monotonous round. - HLM
    11. Re:Its all in the time travel... by ph43thon · · Score: 1

      Well.. if you can transmit data.. then the only problems for making something appear on the other end would be the process of recording all of its information on one end.. transporting the information.. then re-assembling it. Granted.. it may be easier to do this recording and re-assembling for some objects than others...

      Oh and I guess you're just creating copies. I suppose it would be weird to make copies of people.. would an exact copy of me be the same? It seems pretty hard, also, to have some machine that materialized all that blood and tissue. But.. I don't see why it should be impossible.

  60. Products already exists.... by Anonymous Coward · · Score: 1, Informative

    The Group of Applied Physics at the university of Geneva, Switzerland is playing with quantum teleportation for some time already, visit

    http://www.gap-optique.unige.ch/ for more information.

    A spin-off also sells products based on this technology:

    http://www.idquantique.com/

  61. The Star-Trek model of teleportation... by ElboRuum · · Score: 1

    1. "Freeze" the occupant in an annular confinement beam.
    2. Record all information about each individual particle in the occupant in some gargantuan memory buffer, you know like velocity and position (which we know is vis-a-vis the Heisenberg uncertainty principle).
    3. Losslessly convert the matter into energy (it will need to be converted back on the other end, so you really don't want any loss).
    4. Transmit the information and energy to another point... instantaneously (an interesting trick given the sheer quantity of information required).
    5. Convert the energy stream, again losslessly, back into matter, and with assiduous detail to the enormous blueprint you were provided along with it (what, in the packet headers?).
    6. Pray like hell that you didn't transmit through anything that might disrupt the stream... guess we'll need a lot of CRC checks, eh?

    Now I know why McCoy was always so apprehensive about stepping into one of these things. Poor Commander Sonak.

  62. Philosophical Questions by jjohnson · · Score: 2, Informative

    Derek Parfit is an interesting philosopher who's done a lot of work on personal identity just by examining various Star Trek transporter scenarios (like what if you're reconstructed at the other end but don't disappear at the start).

    --
    Anyone who loves or hates any language, platform, or manufacturer, doesn't know what they're talking about.
    1. Re:Philosophical Questions by mrbobjoe · · Score: 1

      like what if you're reconstructed at the other end but don't disappear at the start
      Well, then you'd have to Think Like a Dinosaur.
    2. Re:Philosophical Questions by Anonymous Coward · · Score: 0

      yeah, good stuff:

      http://64.233.167.104/search?q=cache:Be9__lbUwA8J: home.earthlink.net/~owl232/syl180.pdf

      I think the relevant philosophical discussion distilled into entertainment is "Second Chances". They also turned radical skepticism, appearance/reality, whatever into a great episode in 'Frame of Mind'.

  63. whats the big deal? by Virgil+Tibbs · · Score: 2, Funny

    whats the big deal?
    at the moment all it seems they have done is transmitted data(with small d). We have been able to do that since morse code... Can somebody explain to me what the big deal is becasue apart from the ultimate aim, I'm failing to see how this is a breakthrough.

    --
    www.tdobson.net #### Dare to Dream #### blog.tdobson.net
  64. Re:What I don't get about quantum entanglement is. by Anonymous Coward · · Score: 0

    What about if you transport a million entangled particles to mars, then leave their brothers on Earth, then have a pre arranged scheme where if you want to send a binary 1 you destroy the entangled state for the particle pair for that particular time, otherwise it is assumed to be a 0? So there would need to be 1024 entangled particles sent to mars for a rate of 1 kilobyte per second of one way communication.

  65. title is total crap by DragonTHC · · Score: 2, Insightful

    they used telescopes to form a fibre link.

    they didn't teleport anything.

    they used a giant remote control.

    --
    They're using their grammar skills there.
  66. The person who just modded this down can... by Anonymous Coward · · Score: 0

    ...FUCKING BITE MY NUTS!!!!! I made a good point (that observing a photon with a telescope from a remote location has nothing to do with quantum entaglement) and you are a fucking geek who sits in front of a computer all day moderating posts based on your personal views. Go fuck yourself!

  67. Stephen Hawking says... by purpleraison · · Score: 3, Interesting

    I was reading one of Dr. Hawkings writings, and he specifically addressed this issue, and described very nicely what some of the possibilities were, should this kind of technology ever become reality.

    One of the interesting ideas is that since you would have every possible particle of information about an object, or person -- that you would not only be able to transport things, but also duplicate them much in the same fashion that a computer can copy and duplicate files.

    Spooky..

    --
    I am open source, and Linux baby!
    1. Re:Stephen Hawking says... by swillden · · Score: 1

      One of the interesting ideas is that since you would have every possible particle of information about an object, or person -- that you would not only be able to transport things, but also duplicate them much in the same fashion that a computer can copy and duplicate files.

      There are old scifi stories that address this -- not the transportation part, but what the effect on society would be if someone were to invent a machine that could replicate objects. The interesting stories are the ones that examine the problems that would arise in such a society, where essentially anyone could have anything at all, assuming they could briefly get access to an instance of whatever they wanted (obviously, the most widely replicated gadget was the replicator machine itself). Unfortunately, I don't remember titles or authors.

      --
      Note to ACs: I usually delete AC replies without reading them. If you want to talk to me, log in.
  68. It is neither matter nor data! by cashdot · · Score: 1
    You are actually transport neither matter nor data, but an entangled quantum state!

    The reason why this is always attributed with teleportation is very subtle.

    Let me define 'teleportation' like this: A short process after which, an object X does no longer exists at place A, but at a distant place B.

    In my understanding it is okay, if the object at place B is not object X, but an indentical copy of it, as long as the object at place A ceases to exist.

    One could now disasemble the object into atoms, while writing down the position and momentum of each atom. This information could be transmitted by radio to place B, and there one could reassemble the object from different atoms.

    The only problem is, that we would also have to transmit the atom's quantum state in order to really obtain an identical copy. The problem actually already starts with measurement of position and momentum, as one can not measure both quantities with great accuracy (Heisenberg principle). Bottom line, you cannot possibly know everything about the object. It is just not possible, quantum physics wise.

    What does guys did, was transfering the quantum state from the object to a different media, the photon. Since this photon was entangled with another one (at place B), one automatically als transfers the quantum state to this other photon, thereby teleporting the quantum state from A to B. The trick is not to measure the quantum state in order not to destroy it.

    So, on one hand, one has apparently moved something from A to B in no time. (As it is neither matter nor data the theory of relativity is not violated. It is on the other hand also disputed, if you really have moved something). This already can be called teleportation.

    Furthermore, one could imagine, that one could use this technolgy to transmit more complex quantum states and eventually would be able to take of the entire quantum state of an object, disassemble transmitting an exact blueprint of the object by radio, reassemble the object and reapply the teleported quantum state, thereby having a really exact copy of the object and hence the whole thing could be called teleportation.

  69. Misleading by murrdpirate · · Score: 1

    Say I buy a pair of gloves that are randomly separated in two boxes. I keep one box and send the other to the moon. If I open my box and find a right-handed glove, I instantly know that the other box contains the left-handed glove. No information is transfered from the moon to me, it's knowledge that is instantaneous. In another example, it is possible that a theory could be developed (maybe it already has) using knowledge of nuclear physics to predict the current state of a star based on the light we are receiving now. Again, no information, just knowledge. To communicate, SOMETHING must actually move from the source to the destination, and as far as we know, nothing can move faster than light. http://en.wikipedia.org/wiki/Quantum_teleportation

  70. Hmmm let's think about this. by kinglink · · Score: 1

    So they can transport data through thin air. Hmm, now it is my understanding that to perform the sort of transport that the Star Trek did, it would have to break our particles down to their base units, send it through space and atmosphere with an accuracy almost unheard of, especially with moving vessels, and then reform our matter into a solid.

    Oh yeah, so we can send data over thin air now using quantum setups? We'll be able to do this next week then!!! Or not.

    Seriously though, this is interesting and all on it's own but trying to make it sound like this is star trek level teleportation is a sad day, and just silly to boot, and from the sound of it an attempt to get rubes (like our lovely editors) to post the story because it's about star trek not about the very interesting and unique transfer system these physicists have created. +1 for their PR department, -1 for honest journalism.

  71. Whatever. by supabeast! · · Score: 1

    Call me when they have the Heisenberg compensator working.

    1. Re:Whatever. by geekoid · · Score: 1

      That would be know as 'Mrs. Heisenberg'.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
  72. What's the point? by Anonymous Coward · · Score: 0

    Back then, it was too expensive to actually land ships every week on a different planet on an NBC budget (those bastards over at Lost In Space, that's another story). Now, you just send the script to CGI and they do it in Post. So don't knock yourselves out, scientists.

  73. Give me data, not matter by Macka · · Score: 2, Interesting


    Why does everyone get so hung up with transportation of matter, when data is so much more exciting and more relevant to the world we live in.

    What I want to see is the first two-way transmitter/receiver that works via quantum entanglement. Instant communication over any distance!

    Just imagine the possibilities -- real time communication with probes throughout the solar system, or even further. Eventually it might be possible to have a mobile phone that works anywhere in the world, without the need for a satellite network and with no signal blind spots. Countries could increase their backbone bandwidth without the need for more fibre cables. TV and Music could be broadcast from anywhere, to anywhere in real time. I'm sure you can think of hundreds of other applications for this.

    1. Re:Give me data, not matter by ErikZ · · Score: 3, Funny

      Instantaneous spam. All over the universe.

      --
      Democrats or Republicans. They are both taking us to the same place and they are not afraid of us anymore.
    2. Re:Give me data, not matter by geekoid · · Score: 1

      Because to instanly transmit matter anywhere changes everything in real life.

      And if you can transmit matter, you can transmit information as well.

      Given the choice, I would chose matter.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    3. Re:Give me data, not matter by Anonymous Coward · · Score: 0

      I don't think you're allowed to transmit data or information faster than the speed of light. In particular, that's not what this 'teleportation' technology is doing.

    4. Re:Give me data, not matter by swillden · · Score: 1

      And if you can transmit matter, you can transmit information as well.

      Certainly. It would make RFC 1149 data transmission vastly more efficient.

      --
      Note to ACs: I usually delete AC replies without reading them. If you want to talk to me, log in.
    5. Re:Give me data, not matter by patrikor_007 · · Score: 1

      teleportation of matter could do a lot for making the shipping industry more efficient. think of all the fossil fuels burned simply to bring oil to the US, let alone fake christmas trees, computers, car parts, vodka, bananas and clothes.

      now, imagine the energy savings brought on by the teleportation of said goods to mars.

      :)

  74. Re:This is NOT matter transportation by Anonymous Coward · · Score: 0

    Arghhh! I hate it when people try to hijack pop-culture to SELL their research.

    How many times do we have to go through this? This is NOT matter transportation. The "transportation" of data via entanglement is COPYING NOT TRANSPORTING matter.

    The Star Trek concept was to take a SINGLE INSTANCE of a collection of matter, convert the matter into its energy form (there by not destroying the instance) and then transmitting the energy which would then go through a reverse process of converting the energy into its material form. The instance would not get copied, but would get transported.

    Entanglement on the other hand basically makes a COPY of the INSTANCE. In the end you end up with more than one copy. In other words if you tried to beam yourself to you neighbor's house using the fundamental process mentioned here you'd create a clone of yourself and you would never make the trip.

    This is closer to the Star Trek food dispenser than anything else. It created copies of food.

    This is all just a sales pitch for funding. Get a clue!

  75. Actually... by Anonymous Coward · · Score: 0

    If I read the notes on the article correctly, they didn't duplicate the photon, they reversed its spin to avoid deleting the original, and it came out with a goatee and a decidedly evil nature.

  76. Ansible, not transporters! by Cyno01 · · Score: 1

    This has little if anything to do with transporter technology, and everything to do with FTL communications.:P

    --
    "Sic Semper Tyrannosaurus Rex."
    1. Re:Ansible, not transporters! by AlXtreme · · Score: 1

      And everyone who has read the Ender series knows that FTL/Ansible communications leads to FTL transportation, given a large enough "computer" :)

      --
      This sig is intentionally left blank
  77. Re:Dear Slashdot by AMSRay · · Score: 5, Funny

    That wouldn't do you much good if you were 89 miles away from where your penis went.

  78. Lore by irtza · · Score: 1

    or we are dealing with Lore

    --
    When all else fails, try.
  79. Sub-Space Communications NOT the Transporter by sagefire.org · · Score: 1

    This method is pretty damned close to the method they "use" in the series to communicate INSTANTANEOUSLY over distances of MANY lightyears.

    Come on guys! Keep your geek-references straight!

  80. Nerds can be so stupid sometimes by macslut · · Score: 0, Offtopic

    Let's see, you invent a frackin' teleportation device, and then instead of using it to transport hot naked amazonian babes to you, you get all excited about being able to send encrypted data back and forth?

    1. Re:Nerds can be so stupid sometimes by SpacePunk · · Score: 1

      Yeah, especially the use of a transport would be a good way to get the hot amazon babes past their parents and into the basement where they can be usedfull.

  81. Might as well start the list... by NotQuiteReal · · Score: 1
    There have been lots of people who think about this stuff.

    One off the top of my head is the SF book Altered Carbon by Richard Morgan - the interesting bit here is that religious folks would be against teleportation of humans (I guess because it begs the question of who gets to keep the "soul", in the event of duplication...)

    Etc... it's a rhetorical question, right up until the time it happens.

    --
    This issue is a bit more complicated than you think.
    1. Re:Might as well start the list... by Anonymous Coward · · Score: 0

      As a Christian, I'm all for teleportation of humans. I trust my soul will follow my body, and the potential for such a technology are enormous. We could finally help our brethren wherever they are, no human being will ever be away from rescue and comfort. We could stomp out hunger and disease forever, thanks to the ability of transporting instantly personnel and supplies wherever needed.

      If this is what this research will lead us to, then it's clearly God's Will that we make use it.

  82. STAteitizer/DEStateitizer, the new MODEM... by Salgamma · · Score: 1

    new product from Hayes, coming Real Soon Now(tm) to your nearest WallMort!

    There's a seeker born every minute.

    --

    Plus ca changes, plus c'est les meme choses.

  83. Re:Dear Slashdot by stonedcat · · Score: 5, Funny

    It sure would freak her the hell out though.

    --
    You can't take the sky from me.
  84. Is the RIAA financing this ? by modelworks_2 · · Score: 1

    The photons did it by quantum entanglement and scientists hope it will form the basis of a way of sending encrypted data. I knew it. They are already working on how DRM will be implemented. Damn you RIAA !
  85. I'm waiting for the holosuite! by SpecialAgentXXX · · Score: 1

    Like many /.'ers, I've had relatively few sexual encounters with women. (Multiply my amount by any number and it's still the same...) With a holosuite, however, it'll be he hottest chicks, but w/o the STDs or unwanted pregnancies. Just don't jerryrig it and put Quark's face on the body...

  86. Transport THIS by DynaSoar · · Score: 1

    The point that energy (ie. information; negentropy) was transmitted has been adequately made.

    The difference between that and transporting matter is a little problem in conversion. Luckily, we have the math.

    Take one red-shirted Ensign Fodder at 75 kg (~165 lbs). Take it in grams: 75000.

    Convert him to energy, which is measured in ergs. How many ergs? To get this, multiply the mass times the speed of light in a vacuum, in centimeters per second (29,979,245,800) squared (~9 x 10^20).

    75000 x (9*10^20) = 6.75 * 10^25 ergs. That's hard to chew. One erg is about the amount of energy expended by an ant doing a push up (http://www.astronomybuff.com/an-erg-is-an-ant-pus hup/).

    Convert that to something that seems a more reasonable to our minds. One megaton = 4.22 * 10^22 ergs. Thus, one Ensign Fodder converted to energy == 1600 megatons suddenly happening in the transporter room. Even in the best of circumstances, that 100% of said ergwise Ensign Fodder being moved to the landing coordinates before the energy gets released, and you have just transported between 80 and 160 Tunguska events, and your landing coordinates have just become a ground zero to rival the worst imaginings of any multiple MIRV targeted site in the minds of even the most hardened cold war strategic arms general.

    Where do you get this megatonnage? One assumes anti-matter conversion. At 43 megatons per kilogram on antimatter (plus matter, of course, but that's trivial), you're burning up 2 to 4 kg of antimatter just to use one Ensign Fodder to create a crater 4 to 8 times the size of the Arizona meteor crater (http://www.psrd.hawaii.edu/Dec97/impactBlast.html ) in the planet's surface. One would assume one would need to be pretty pissed at said planetary body (not to mention said Ensign) to blow a hole in it in this way. That antimatter represents a good piece of Enterprise's fuel. Keep in mind that 'burning' it in a controlled manner is going to require a piece of the output to keep it contained, and so the go-value of the fuel won't be near what the boom-value is when burned uncontrolled.

    The next time the Independent or any other media blurble plays pseudo-geek and insists on cramming in a sci-fi reference despite the fact that the people interviewed pretty much denied the comparison, ask them how big a hole in the ground was left by the test. If there isn't one, there was no matter conversion and so none transported.

    Which begs the question, how would we know if anyone ever managed to do this, unless someone were left to measure the crater? "Really big catastrophes don't leave anyone behind to tell the story." (Vernor Vinge: A Fire Upon The Deep).

    --
    "I may be synthetic, but I'm not stupid." -- Bishop 341-B
  87. something to lose sleep over by dbcad7 · · Score: 1
    In considering death, I often think about sleep. Not sleep where you dream, but out like a light sleep. You wake up, you have no memories of your exsitence during a good portion of your sleep. I assume death will be like that, except the waking up part.

    Now consider a proceedure where you are asleep, exactly duplicated, with the original destroyed. The duplicate wakes and has all your memories, so in a sense "you" wake up. this is not really much different than your nightly experiences of sleep. Now you probably don't give a sceond though to destroying parts of yourself with a haircut, or nail clippings.. all you have to do is just get used to the idea of destroying the rest of it. and you'll be ready.

    --
    waiting for ad.doubleclick.net
  88. It's not like Star Trek at all! by ajayg · · Score: 1

    Quantum teleportation is about replicating quantum states between two locations, not disassembling and then reassembling matter!

  89. huh. by Jarik+C-Bol · · Score: 1

    i did not read the article, but it seems like an entirely expensive undertaking to me. on a almost unrelated note, i've always felt that the best way to send anything over massive distance would be to open a gateway to another dimention or whatever, put your item through, then the person on the other end opens a gate to the same spot and picks it up. and from a laymans view, that would be easyer to find out how to do. lol.

    --
    I've decided to Diversify my Holdings. I've divided my cash between my left and right pockets, instead of all in one.
  90. Congratulations! by feedmetrolls · · Score: 0

    You just contradicted Christianity!

    --
    You are reading a sig. Cancel or allow?
  91. Ursula LuGuin, not Orson Scott Card! by patrikor_007 · · Score: 1

    DOOOOD.

    ansibles are from Ursula LeGuin (possibly the best sci-fi author EVAR due to her attention to character and the human condition in general), not Orson Scott Card. perish the thought.

    1. Re:Ursula LuGuin, not Orson Scott Card! by Sobrique · · Score: 1

      It was a nagging itch for a while, that reference in Enders game to 'found the name in a book somewhere'. Now I know which book it was from.

  92. Sorry by Anonymous Coward · · Score: 0

    Micro$oft own the patent for this already !!

  93. in this case, the crewman will be the shirt.. by freaker_TuC · · Score: 1

    or better, be teleported bad and be the red shirt instead of wearing it.

    --
    --- I am known for the ones who want to find me on the net. Is that a privacy risk or a privilege? One might wonder..
  94. Oh Dear... by vorlich · · Score: 1

    This is simply not how the Stargate works. Dinky robot first, followed by a team of four highly individual individuals wearing the same colour and style of uniform. Morning phone calls are apparently an essential pre-requisite.

    --
    Posts, MyBio or Sig, may contain satire, sarcasm, bolded nouns be sardonic or even witty & be Church of SD
  95. Nah, he's dead Jim! by freaker_TuC · · Score: 4, Funny

    mod up. by the way, is the cat dead or alive? He's dead Jim, but not as we know it!
    --
    --- I am known for the ones who want to find me on the net. Is that a privacy risk or a privilege? One might wonder..
  96. Re:Lore or B4 by catmistake · · Score: 1

    ok... shoot me

  97. Medical use by cybergen007 · · Score: 1

    I have always wondered could such a device be used for medical use? If you detect a cancer cell could such a device simply not copy that cell or any qauntum particle that goes with it so that the cancer is simply not copied?

  98. Somewhere Niels Bohr walks among us... by Twisted64 · · Score: 1
    --
    Consciousness is a myth. Trust me.
  99. Matrix has you by Anonymous Coward · · Score: 0

    I think that effect can't be possible unless we are simulated livings and they found a bug in the system. "Oh! I found a way to transmit information by no channel!" Come on, that can't be possible in the real world, so this is not the real world.

  100. So is it working now? by utnapistim · · Score: 1

    Because I still have nightmares about that cat ...

    --
    Tie two birds together: although they have four wings, they cannot fly. (The blind man)
  101. Correction by Anonymous Coward · · Score: 2, Informative

    >> You can't send information faster than the speed of light.

    Correction: You can't send information faster than the speed of light in current models.

    Science is about devising consistent mathematical models, using them to create hypotheses that should be observable in reality, and then determining the degree of correlation between the prediction and the observed behaviour of reality. If the correlation is good then the model is considered useful. That's it, that's all there is to the scientific method.

    Our current scientific models say that you can't send information faster than the speed of light, and that's an inescapable property of these models, built into their mathematical basis, but it is not a property of reality herself. We have no means of knowing what reality will or will not permit. We'll need to devise new models in order to test deeper properties, as it's beyond the capability of current models.

    Don't confuse models with reality, nor properties of models with properties of reality. The two are quite distinct.

    1. Re:Correction by Whiteox · · Score: 1

      Reality is female?
      OMG! So that's where I went wrong!!!!

      --
      Don't be apathetic. Procrastinate!
    2. Re:Correction by kalirion · · Score: 1

      Wait, don't some of the current models allow for wormholes? Through a wormhole information might not travel faster than the speed of light, but it could certainly get to its destination faster than a ray of light through normal space would.

    3. Re:Correction by Anonymous Coward · · Score: 0

      And don't assume that any crackpot idea is feasible because we "really don't know what reality will permit." For every Galileo there are tons of kooks whose only retort to criticisms of their Theories of Everything is "well, they laughed at Galileo ..."

  102. Suspicious Location by mark99 · · Score: 1

    I think these "physicists" just wanted to hang out in the Canaries, a very nice holiday resort.

    Real physicists work in cold and rainy places with lots of ugly cheap concrete buildings. Everyone knows that.

    I won't believe this until it gets reproed somewhere less glamourous.

  103. Polygon clipping by master_p · · Score: 1

    "Particles (photons, electrons, etc.) do not have some values (eg, spin, charge, etc.) defined until they are observed."

    The situation reminds me of polygon clipping in 3d applications: if the polygon is not visible, then do not render it. Same thing with particles: if they are not observed, then they do not exist.

    Could this be used as an argument in favor of the universe being someone's video game?

  104. Ansible concept - invented by LeGuin, not Card by kria · · Score: 1

    Card got the ansible and it's name from LeGuin, practically acknowledged in the novels themselves. "The official name is Philotic Parallax Instantaneous Communicator," explains Col. Graff in Ender's Game, "but somebody dredged the name ansible out of an old book somewhere"

    Wiki on Ansible

    I know it's a minor point, but I like LeGuin better. :)

  105. Ascii Diagrams! by GeneJoker · · Score: 2, Informative

    The above explained crudely and innacurately using ascii diagrams.

    X and Y are at the same location. It is 9 o'clock

                                    XY
                                      9

    X has a sudden, irresistable urge to get as far away from Y as possible. He departs rapidly to the left at Mystery Speed(tm)
                            X {- Y
    Y's Tale

    Y stands around for an hour, at which point she feels needy and clingy and rings him with her Nifty Ansible(tm). Her watch says it is 10 o'clock.
    Now, from Y's perspective, X has been travelling so fast to the left that he has reached relativistic speeds. As such, only half as much time has passed for him. His watch says it is 9:30.

                    X {- Y
                    9:30 10

    He gets a phonecall. Y says "I miss you I need you come back (bring me a magazine)"
    He replies "Fine." and hangs up.

    X's Tale.

    X realise he didn't know which of the seventy million identical celebrity magazines Y wanted. But from X's perspective, /Y/ has been traveling rapidly to the /right/. As such, only half of half an hour has passed for her, and her watch says 9:15.

                    X -} Y
                    9:30 9:15

    She gets a phonecall. X says "What magazine do you want?". Y says "OMG YAY YOU WERE THINKING OF ME a people would be nice."

    Y, having gotten the reply 45 minutes before she sent the initial call, thinks X called off his own bat. She feels happy and validated, and does not ring him 45 minutes later. So he never calls her. So she feels lonely and calls him. So he calls. So she doesn't. So he doesn't. Then the universe explodes.

                    X BOOM Y

    And that's why relativity and relationships don't mix.

    1. Re:Ascii Diagrams! by Clandestine_Blaze · · Score: 1

      Could you explain something a little further? This has to do with relativity.

      Let's start with Y's Tale. You state that X gets that urge to get away as far as possible (sometimes, it's never fast enough!) and does so. His watch says 9:30 for him while her watch says 10:00. I assume she stood still for an hour while he traveled for an hour, but for him it was only half an hour due to his speed. This I understand. However, let's move onto X's tale.

      You then state that Y traveled rapidly to the right and only half of a half hour (15 min) passed for her and that her watch says 9:15. However, in the last tale, her watch had said 10:00. So what I want to know is this. Is her watch saying 9:15 from Y's perspective, or from X's perspective? If it's from Y's perspective, shouldn't it say 10:15 instead, since it's relative to her?

      I have enough of a fundamental grasp on this stuff to know that I don't have a well enough fundamental grasp. Ugh. Excuse me while my brain explodes. Thanks for the original post though. I really enjoyed it and the diagrams did help! (The humor was great as well) :)

    2. Re:Ascii Diagrams! by GeneJoker · · Score: 1

      Initially, as far as Y is concerned, X travelled to the left for one hour. However, from her "perspective" (though she has no way of telling this) only half an hour has passed in "his" time, as his "time" is moving half as fast as hers.

      When he gets the call, from his "perspective" it is Y who has been travelling rapidly (Remember, all motion is relative) to the right, and only for 30 minutes of his time (because only 30 minutes of his time has passed). So from his "perspective" only 15 minutes of "her" time has passed, because from his perspective her time is only moving half as fast as his. So when he gets the phonecall from her at "her" 10 oclock, from his perspective it is 9:30 and "her" time (from his perspective) is only 9:15, or 45 minutes before the phonecall he is involved in was actually made.

      This is assuming that they have equal mass, are standing on nothing, and he (or she) can go from 0 to MysterySpeed(TM) instantaniously. When you start including objects of different mass and acceleration and gravity wells then it gets beyond my IANAPBIHFWAAIRAL (I Am Not A Physicisist But I Have Friends Who Are And I Read A Lot) armchair relativity knowledge :(

  106. Here's the answer ... by Anonymous Coward · · Score: 0

    The answer to your riddle, "How can you transport a living thing while keeping it isolated from the environment?" is quite simple.... You do not have to put the being in a vacuum (thus, killing it.) You need to transport it, along with the air in its chamber, to the destination location. But I can't see how the teleportation process can take ANY amount of time at all without the thing dying.... that's the problem. Either transport ALL of his atoms instantaneously (simultaneously), or he's dead!

    I think we will be much more successful transporting rocks!

  107. Humans have been doing this for a while by LevonB · · Score: 1

    Its called synchronized swimming. We use a photon called light to see what the other swimmer is doing and then mimic the other swimmer.

    --
    Levon Barker
  108. Transfer data to a telescope using *light*? Wow... by AttilaSz · · Score: 1

    Tiny packets or particles of light, photons
    Thanks for defining "photon" :-)

    were used to teleport information between telescopes on the two islands.
    They used photons to transfer data between two telescopes? Wow. Transmitting data to an optical receiver using - light! I would've never thought of that. Some Greeks few thousands year ago did this with mirrors and sunlight though. (Before you mod me down, yes, I'm aware what's the real news here. Too bad the Slashdot summary turned out both braindead and utterly wrong.)
    --
    Sig erased via substitution of an identical one.
  109. The Prestige by QuantumPion · · Score: 1

    A good example of what the parent is describing is in the move The Prestige (some spoilers ahead). When the magician Angiers uses Tesla's teleportation machine, it creates an exact copy of Angiers a short distance away. Each time he uses the machine, he murders the clone by drowning him in a water-filled sealed box, which he later disposes of. At the conclusion of the movie, Angiers reveals that he was terrified every time he used the machine, because he never knew whether "he" would be the applause-receiving prestige or the drowned clone.

    1. Re:The Prestige by Anonymous Coward · · Score: 0

      That's not quite right. He was killing himself every time, and his clone would live on.
      The trick goes:

      1. He gets in the cage
      2. He gets cloned
      3. He falls into a tank of water (which is then automatically sealed) & drowns
      4. Meanwhile, his clone carries on the show as if it's the original him...

      So every time he got into the cage, he knew he was about to drown.

  110. Interesting encoding system by Brew+Bird · · Score: 1

    So quantum entanglement is a new encoding system for optical data transmission. I wonder what the top end of the bandwidth would be...

    It should be something pretty massive, assuming you can keep the photonic loss between objects to a minimum, yes?

  111. New dictionary entry coming soon by Anonymous Coward · · Score: 0

    Main Entry:
            subspace
    Function:
            noun

    1: a subset of a space; especially : one that has the essential properties (as those of a vector space or topological space) of the including space
    2: the "spooky" and virtually unfathomable field of quantum entanglement

  112. Re:'tis not uncertain... by cbacba · · Score: 1


    This is obviously not only the age of tabloid journalism, it's the age of tabloid science.

    I'm surprised there's no stories on re-animating anna nichole (and ultimately elvis). Or maybe dr. frankenstein lost the pr battle a long time ago.

    quantum entanglement (spooky action at a distance or whatever you want to call it) is a fascinating sci-fi-ish concept anyway - except that it's real. Such a thing should be fascinating for anyone with a modicum of curiousity and by the sounds of it, their research is actually doing something to expand knowledge. Sometime in the future, if and when we ever spread out from the earth, such a mechanism might be the instant radio stylecommunications across vast distances. It doesn't need to be hyped and tied to cancelled television show that existed prior to the birth of most of the people on this planet.

    The total worthless BS of a startrek transporter that requires the energy to totally dismantle every molecule of an object and send the information somewhere else was nothing more than deux ex machima solution to solve the obvious problem that the big starship wasn't designed to land and shuttles seemed too inefficient to transport sufficient people and supplies.

    Heck the very notion was obscene. Imagine someone stepping into a disintergration chamber just so some identical twin could be replicated somewhere. It's either that, or some never mentioned notion of an ability to transfer the 'soul' in the information stream as well. The primary benefit of the transporter was that it offered new venues of exploration for writers with writer's block.

  113. US had it already by Type-E · · Score: 1

    I saw it in the movie, Deja Vu.

  114. that's interesting too! by Anonymous Coward · · Score: 0

    that's interesting too!

    any physicists care to comment?

    1. Re:that's interesting too! by Paperweight · · Score: 1

      This is the second time I've posted that. Hey man, I might have to post it more times in more visible locations. :) Someone will probably answer "You're wrong because nothing can travel faster than light." Information has no mass, maybe it can travel as fast as it damn well pleases?

  115. Faster than light? How would you know?? by Anonymous Coward · · Score: 0
    I've always wondered this about FTL phenomena. I've worked in labs doing Data Aquisition and every instrument we use is limited by the speed of light. So if all your tools are bound by the speed of light, other than to theorize about what actually happened, how would you know? If you've ever used a webcam with a slower frame rate, you know that it is possible to create motion that the camera as seen on the other end appears not to capture. That doesn't mean the motion didn't take place but rather that it occurred between frames. Thus if there were an object travelling at faster than the speed of light why wouldn't it be dark or invisible other than by logic/reasoning and speculation?


    Maybe there is a dimension where time has no meaning, at which point all locations would also have no meaning, and everywhere would coexist at once in the same place at the same instant. Perhaps these entanglements occur because in part the intersection of this dimension where time/space is meaningless and our own familiar dimension results in a distortion or translation we can see much like a 3 dimensional cube must be distorted to be represented as a 2 dimensional picture.

    In all honesty, I have *no idea* but I do recognize that many natural phenomena existed long before we had the ability to perceive them. Radio waves existed long before people could detect them, yet they remained there waiting for us to discover. Who is to say that the limitations imposed upon the physical world we understand aren't simply limitations of our understanding vs. the actual limitations of our reality?

  116. Monkey Climbing Tree Brings Space Program Closer by srobert · · Score: 1

    Didn't read the Article, just responding to the post title.

  117. I don't know about this by Anonymous Coward · · Score: 0

    The summary says this : "...the state of matter rather than matter itself is sent from one place to another..." This sounds like its sending a copy of the object instead of the object itself. I guess its ok if you send "things", but this might be a little problematic for people. Invasion of the Body Snatchers comes to mind.

  118. yeah - this is the slashdot weakness... by Anonymous Coward · · Score: 0

    slashdot stories have the attention span of a gnat ;)

    only very very very few people actually ever really follow up on anything past day 1

  119. If only your data is transmitted ... by Balbas_Scriptor · · Score: 1

    ... what's reconstructed 89 miles away is someone else, as you have been killed in the deconstruction process.

    Star Trek transporters retain the "you" part so that you are literally put back together elsewhere.

  120. GOD CREATED ANTIMATTER, DUH by inKubus · · Score: 1

    From the The Holy Bible, George Bush Edition, c2168AD: On the 8th day God created Antimatter and Adam had to go and mess with sticking matter with it and thus Sin was born. To assume that the antimatter just evolved from some complex reaction is "Ludacris"

    --
    Cool! Amazing Toys.
  121. No light-speed communication, but... by StarKruzr · · Score: 1

    would this theoretically let you transmit information from point A to point B at the speed of light if, for example, point A was entirely isolated from point B (by a 400-foot thick hollow globe of lead, for example)?

    --

    +++ATH0
    1. Re:No light-speed communication, but... by bh_doc · · Score: 1

      No, there has to be some sort of classical communication between the two points for the teleportation to work. If the two points are completely isolated from each other, then the last step, a special measurement on B chosen based on the result of the first measurement on A, doesn't make sense.

      The neat thing about teleportation is that the state of particle A gets sent over to B (being rough with my description, technically, but it'll do) *without knowing what that state actually is*. The measurement done on A that needs to be sent to B doesn't actually give a complete description of the state, and that's why it will be useful for encryption. But without the result of that measurement the state can't be faithfully teleported to B. There really does have to be an old-fashioned communication channel between the two parties for it to work.