Slashdot Mirror
Macroscopic Quantum Entanglement
meckardt writes: "We laugh at the science fiction of such programs as Star Trek, but it can almost be stated as a truism that what is fiction today may be science tomorrow and engineering next week. Researchers at the University of Aarhus in Denmark report in the science journal Nature that they have been able to cause particles to interact over a distance using lasers. The effect, called quantum entanglement, has been observed before, but never with such large amounts of matter. Don't expect transporters next week, but it is interesting that this report hits the streets the same day that Enterprise debuts."
fp
no way
If you don't say anything, you won't be called on to repeat it. -- Calvin Coolidge
I wonder how long it will take before we won't even need to go to McDonalds to pick up our food from the drive-through. We'll just teleport our cash there and get our food back, right into our microwaves, or some other instrument.
Yummy.
what do you know, my very own first post - stupid lameness filter - I'll probably loose because of it. I hate that damn thing
you're gay
Now school kids that have forgotten their lunch at home can have it beamed over to the local elementary school.
void women (int money, time_t time);
Now... if we can throw an atom smasher on mars we can get decent bandwidth to our next rover .
ooh
As I've understood these experiments in the past, entanglement involes splitting a particle, or taking two existing particles, and "entangling" their states -- so that, for example, if you change the spin of one electron, its partner electron's spin also changes, even at a great distance (or something to this effect).
The application to faster-than-light information transmission is obvious. But teleportation? The article doesn't give enough specifics. Can anybody shed light on this? How would this experiment lead to a teleporter??
I'm amazed that this worked with "trillions" of atoms; this kind of phenomenon is usually restricted to very small, very energetic particles. But it's NOT teleporation. Teleportation involves taking an object from point A and moving it to point Z without crossing the in-between space, C through Y. This is like taking an object from point A, running it through the world's biggest and best Fax machine, then putting the result at point Z, without crossing C through Y.
Still, it's an interesting and ground-breaking result, one that (I hope) will make it past the peer review process, which kills more scientific papers than anything else.
Why not just teleport the whole thing directly into your stomach, that way you wouldn't have to taste the rotten meat and all the crap they put in there. And I'm pretty sure will be a cashless society when teleportation arrives.
Je t'aime Stéphanie
next i will exercise my prehensile tail
Slow Down Leatherdaddy!
Gimme an F
F!
Gimme a P
P!
That's right kids, First P0st.
This space reserved in memory of the victims:
-->| |--
Damn.
31337 personified
Because It Was There
When George Willig, a toy maker from Brooklyn, used homemade climbing equipment to scale the World Trade Center on a windy March day in 1977, he expected to be arrested when he reached the top, and he was. But Willig had not merely climbed what was then the tallest building in the world. Nor had he trespassed upon the property of the average New York commercial landlord. Willig had conquered the summit of a billion dollar, ten million square foot office complex built and run by the Port Authority of New York and New Jersey (PA), a bi-state planning agency charged with protecting public funds from diversion into speculative ventures.
But while Willig's stunt brought him instant popular acclaim, the Authority's higher-ups were not amused by the idea any sufficiently venturesome soul could turn the jewel in their real estate crown into an impromptu adventure park. The PA legal department pressed criminal trespass against Willig, then iced the cake with a $750,000 civil suit.
Keen to take up the cause of an underdog getting it in the neck from humorless bureaucrats, the local newsmedia rallied to Willig's support, mercilessly ridiculing the PA for failing to catch the spirit of a city universally renowned for its chutzpah. And besides, Willig had helped Gothamites forget, if only briefly, that New York was in the midst of its most severe fiscal crisis since the Great Depression. He had made them feel triumphant and unafraid. So it took a second publicity stunt, this one dreamed up by PA's top PR man, Sidney Frigand, to put a positive spin on the Authority's edifice complex. In a courtroom sentencing turned media opportunity, Willig copped a tongue-in-cheek plea, agreeing to pay the city a fine of one dollar and ten cents - a penny for every floor he'd climbed.
N.B. There must be peculiar and fortuitous relationship between the Willig clan and the world's tallest buildings. In 1945, George's mother, the future Thérèse Fortier Willig, was working in the Empire State Building when a B-25 bomber, lost in fog, plowed into her office causing thirteen fatalities. George's mom survived. (ED)
lose
When is Mr Katz going to do a film review of the new movie everyone is talking about
the movie is called Glitter and I would like to know Mr Katz' opinion
extra whitespace in slashdot stories?
He's got a microscopic quantum dick that gets entangled often.
Usamah was born in 1957 in Riyadh. His father took many wifes, and young Usamah was born to one of the last and least respected of them. He was the 17th son of a reported 50 sired by Mohammed. Mohammed's brother and partner sired 50 more, making the bin Laden clan and influence huge. The fact that Usamah came to outshine them all is a testament to his innate genius.
Usamah as a young boy, on holiday in Sweden aged 14. His 'pale good looks' shone through already. Click here to view.
Earliest direct evidences of Usamah himself this reporter could track down are recollections by an old teacher, Brian Fyfield-Shayler. In 1969, whilst his decadent western peers were guzzling drugs and descending into an orgy of self, the callow bin Laden, just 13, was studying hard at Al-Thaghr, a school in Jeddah, Saudi Arabia modelled on the English public school system. Mr Fyfield-Shayler said (in this respected news source) "I remember him as quiet, retiring and rather shy. He was very courteous - more so than any of the others in his class. Physically, he was outstanding because he was taller, more handsome and fairer than most of the other boys. He also stood out as he was singularly gracious and polite, and had a great deal of inner confidence. He was very neat, very precise and very conscientious."
There can be no doubt that Usamah, an ordinary and pious young man, was deeply affected by his family's involvement in rebuilding the two holy Mosques in Mekkah and Madinah. We have already heard that his early teacher thought him a confident but reflective individual, so we shouldn't be surprised if he felt great pride that his family was involved in raising the glory of Allah in such spiritually significant places.
Throughout the 1970's Usamah spent his time studying and working for the family business. Doubtless he kept an eye on current affairs ? the disgraceful behaviour of Israel and America during this period is remarkable ? but he was determined to get his degree and be a credit to his family. In 1979 he graduated from King Abdul Aziz University in Jeddah with a degree in Civil Engineering.
BEGINNING OF THE LEGEND
Usamah as a handsome young man in the Mujahideen. Shortly after young Usamah graduated, the Soviet Union invaded Afghanistan to prop up the failing Communist regime. The Mujahideen put out an international call for help, and Usamah was inspired to leave the dusty world of commerce for more noble pursuits. He packed himself and several family bulldozers off to Afghanistan, and later was quoted as saying "In our religion, there is a special place in the Hereafter for those who participate in Jihad. One day in Afghanistan was like 1000 days of praying in an ordinary mosque."
Usamah made a huge difference to the Mujahideen. At first he was an effective politician and strategist. He recruited thousands of Arab fighters in the Gulf, paid for their passage to Afghanistan, and set up camps to train them. He designed defences along the Pakistani border, driving a bulldozer himself and taking great risks from Soviet helicopter gunship strafings as a result. Such was the personal stake he felt that before long he had taken up a Kalashnikov and was fighting on the front personally. This personal touch emerged again in 1986 when he and a few dozen Arab helpers fought off a Soviet onslaught in a small town called Jaji, near the Pakistani border. This ignited the Afghani resolve, as it was the first example that the Russians could actually be beaten. Just twelve months later he turned the tide of the Afghanistan war with a brilliant offensive against Soviet troops in the battle of Shaban. The Mujahideen suffered heavy casualties in the vicious, heavy fighting, but thanks to bin Laden's superb generalship the Soviets were pushed out of the area for good and the end was in sight for the Communists.
Hamza Mohammed, a Palestinian volunteer in Afghanistan, recalls "He was a hero to us because he was always on the Front Line, always moving ahead of everyone else. He not only gave his money, but he also gave himself. He came down from his palace to live with the Afghan peasants and the Arab fighters. He cooked with them, ate with them, dug trenches with them. That was Bin Laden's way."
By the late 1980's Usamah had established himself as a legend across all Afghanistan. It was at this time that his close personal friendship with the Taliban Mullah Mohammad Omar began. The Wahhabi brand of Islam they both share is somewhat similar to Protestantism, but in an Islamic context, and they are both very spiritual men. To this day they take reflective fishing trips in the backlands of their country, such is their binding friendship. Where the rest of the Islamic world has been corrupted by decadent Western ways, the Wahhabis stick to traditional Islam as taught in the Koran. They are amongst the very holiest and most pious of Muslims, their creed established in Saudi Arabia, to an extent, and also Afghanistan, which though not strictly a Wahhabi state is very closely modelled on one. A measure of his piety is that he selflessly rejected an offer from King Fahd of Saudi Arabia to expand the Prophet's mosque in Medinah. This cosy little deal would have pocketed Usamah a lovely $90 million, but he refused as he correctly recognised it as an attempt to lure him from Jihad against the communists.
RETURN TO THE HOMELAND
Usamah today, careworn and wise with experience. Usamah returned to Saudi Arabia in the late eighties, a celebrity throughout the Muslim world. Convinced by the words of the holy Koran, Usamah soon set aside his own personal, selfish best interests and began to campaign for the Saudi government to introduce Shariah (Islamic Law) and reduce its terrible corruption, an offence to Allah in the land of Mekkah. Although this was to get him into trouble with the corrupt authorities on several occasions, the real shakedown occurred when King Fahd decided to allow Western troops in the Kingdom during the Gulf War. Usamah criticised the Saudi regime for this terrible decision, and was promptly hounded with a harassment campaign. Before long, in 1991, he fled to the Sudan, and shortly afterwards was declared an outlaw by the Saudi regime, which stripped him of his nationality and put a price on his head. His loyalty to the word of the Koran and his conscience had cost him his home, and reduced him to a common bandit as far as his old circles in Saudi Arabia were concerned.
In the Sudan Usamah managed to expand his business interests considerably, and he continued his Jihad bankrolling. Always keeping a careful eye on ethical considerations, he made sure to only bankroll just causes, putting money on the underdog and the concept of right V might:
Chechnya. Here the Russians have sought to destroy all hope of Chechnian independance, but as usual bin Laden is involved, helping fund the Chechen guerrila fighters against the superior enemy. A noble cause.
Muslim Bosnians against the Serb overseers. Despite the justness of this cause, the US interfered, arresting the fighters he sent to help the cause of freedom against oppression. Nonetheless, bin Laden had a big impact there, as he does everywhere.
Palestine. bin Laden has always been outraged by the plight of the Palestinians. At a young age he came under the tutilege of a Palestininian man, Sheikh Abdallah Azzam, who was once a confidant of Yasser Arafat but had become disenchanted with the PLO. Some Usamah became intertwined with Palestinian politics and the cause.
Yemen. Usamah has long had links to the Yemen Wahhabi cause. He has also been involved in the struggle there - the bombing of the USS Cole was possibly an example of this (unlike the WTC, this bombing fits bin Laden's MO - the target was military, not involving innocent civilians.
Everyone of these causes was Just and right, and it is no wonder that Usamah's reputation only grew and prospered during this period ? and no wonder that an assassination attempt was made at this time, though he escaped with only some injuries.
AFGHANISTAN ONCE MORE
In 1996 Usamah moved permanently back to Afghanistan. In despair at the terrible situation in both Saudi Arabia and the Sudan, he sought a more traditional and devout setting. After Saudi Arabia decided to imprison Islamic scholars and hundreds of Mujahideen youths, after the rape of the Holy Land by the West and the occupation of the two Holy Places by American troops, Usamah decided to make a stand. He issued his first Bayan, or statement, 'A Declaration of War against the Americans Occupying the Land of the Two Holy Places'. This document was seminal, and simple ? a lucid warning instructing the Americans to leave the land of the two Holy Places or face military attack from the Mujahideen, the same Mujahideen that defeated the largest superpower in the world under his tutelage some few years before in Afghanistan.
"Muslims burn with anger at America. For its own good, America should leave [Saudi Arabia]."
Usamah is still in Afghanistan to this day. Despite the total lack of any evidence (The US claims to have evidence, but with it's usual broohaha is prepared to go to war rather than publically release it. It is so convincing they will give it to allies but not to the Taleban, from whom they expect an extradition with no evidence at all) relating him to the recent WTC attacks, he is castigated worldwide for this devilish act. Usamah may be no friend of the United States, and with good reason, but he has no record of attacking innocent civilian targets. He is an honourable man and an honourable fighter, with a long, proud record of fighting for the oppressed (but right) underdog.
So why must he die?
Because he must be martyred. It is my belief that Usamah has reached his peak. Already approaching his 50's, he can't continue his brave fight against Western imperialism forever. Already he is weakening, his judgement is failing and his body shrivels. Every Muslim who dies in Jihad is guaranteed a place in Heaven, and Usamah, in dying, can both guarantee his own elevation and strike a blow against the western imperial forces trying to paint him as some sort of extremist. If he martyrs himself, a thousand new and young Usamahs will be inspired by his legend and continue the good fight, and the truth about bin Laden will spread around the world, and so the simple peoples of this globe will hear of his valiant life and fight. When the Soviet Union invaded Afghanistan, the USA boycotted the Moscow Olympics, western opinion was outraged, and President Jimmy Carter embargoed all exports to the Soviet Union. Contrary to popular belief, the USA did not funnel military or financial support to the Mujahideen, however. In this interview bin Laden recalls "Personally neither I nor my brothers saw evidence of American help", so we see that the Americans were all mouth but had no guts. Now that America has, with it's usual hypocricy, decided to attack Afghanistan, it is clear that Usama must take risks to ensure maximum damage is applied to the enemy.
WHAT USAMAH MUST DO
Firstly he must provide tantalising glimpses of himself, drawing the Americans into Afghanistan. He must make sure the common people of Afghanistan understand that the Americans are out to culturally reprogram the Afghanis, one of the last pure peoples of the Earth. He must extract maximum damage upon the enemy in exchange for his own life. No superpower, however strong, can, once entered, come out of Afghanistan with honour. Hopefully the plight of Afghanistan and the indiscriminate killing of civilians that will occur there will reignite the Wahhabi cause throughout the Arab world, but especially in Pakistan and Saudi Arabia. There is a great, noble chance here for the Middle East to be reawakened in its old image.
Usamah made Afghanistan in his own image, it is thanks to his influence that it has steered a course away from the brutality and violence of communism, towards the status of a pure Muslim state. The Taliban, unlike the governments of Yemen, Iran and Saudi Arabia, is not corrupted by Western influence, and will not hand him over. The West knows it has a resolute enemy. Even in the unlikely even that they did decide to hand him over, they would be unnable to, and surely the Afghans would revolt and a new revolution would be needed.
The likelihood is that they shall be true to the tenets of Islam, and not hand over Usamah. Then, the US and other Western allies will be forced to invade Afghanistan, where they will meet a bloody end. Usamah must sacrifice himself in the process, for it is the best way of guaranteeing his place in heaven and exacting maximum pain upon the enemy.
So besides amazing quake games, what would a networking technology based on this give us?
I teleported home one night,
With Ron and Sid and Meg,
Ron stole Meg's heart away,
And I got Sidney's leg.
Consultancy: If you're not part of the solution, there's money to be made in prolonging the problem
XML causes global warming.
Quantum entanglement is basically splitting up a photon into 2 parts. These 2 parts are quantumly entangled, so when you measure one, you would get exactly the same result on the other as a result of them being entangled. The supposed ability to transport particles is not true. It is only able to allow measurements on one particle to be duplicated on the other. So, if we ever get this to work on large objects such as humans (!) you wont get teleported. There'd only be a duplicate of you on the other side. And in the act of measuring the state of all the particles of your body, you'd probably be dead too. I wouldnt care to have a duplicate of me on the other side, because you'd still be dead.
I don't see how this would allow for teleportation. As many others have already mentioned, how do you draw a link between this and the ability to transport (or even duplicate) matter?
However, I do see a possibly very significant use of this technology. If you can maintain an entangled state between macroscopic objects, wouldn't this allow a change to one object to be seen immediately in the other? If so, couldn't this be used to create computer networking devices which would work over any distance without any delay, and without any necessary wires or similar infrastructure? This sounds like it could potentially create the "ansible" predicted by Ursula K. Le Guin and Orson Scott Card.
I have an account that posted a few goatse.cx ascii art trolls. When they don't get archived, will it be possible to karma whore with it again?
Sounds like the matter transferance laser in Tron. Don't sit in front of it and piss off the computer.
MCP: Back again. Flynn?
Flynn: Well, well, well, if it isn't the Master Control Program.
MCP: You know I can't allow this, Flynn.
...
--
"Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.
The article has such an astounding lack of detail that it makes me wonder if this is another case of Yahoo News hacked to provide a story.
:)
How did they determine that there was any quantum entanglement? Once you've got enough atoms, the average properties of both are going to be the same anyway
For that matter, what was the setup? And how come the slashdot article says the report is in 'Nature', but the link takes you to Yahoo?
Liquor
Sanity is a highly overrated commodity.
The article on yahoo was about the worst science writeup I've ever seen. This is an interesting report, but it appears that you may actually need a print subscription to access all of Nature's online content. Can someone provide a mirror of the article, or a good bit copy/pasted? All yahoo had to say was that some day real soon we'll be zipping back and forth in teleporters using this magical force called "science".
Jeez... so I have to take the bus to school again??? Bloody hell, where are my taxes going?
I heard of this before, except it was actually the concept of destroying the original and rebuilding the particles at the end-point. Wouldn't cloning take on an interesting point there?
This uses entanglement tho. Can anyone explain it in layman's terms?
Thanks Gog they won't be ready next week. Or else we might see some towelheads hijack one of those in order to telefrag the Transamerica Pyramid in San Franscisco!
One real posiblity for quantum entanglement would be in the area of quantum computing and distributed processing. The theory in a quantum computer is that every possible state of every computation can exist simultaneously. Only after you decide you want to know the answer to a specific problem will you find it - in effect any complex calculation is speeded up my magnitudes of order. In a distributed environment, quantum entanglement would allow for 2 (or more) quantum computers to join together and each work on a distributed/parallel process program and instantly share data, as well as solutions. For example, in gene research the refinement of proteins into useful medications could take place at a much faster rate because each quantum computer could "see" what the other got for evolutionary results and apply those changes along separate lines of reasoning while still being aware of what worked and what did not.
In a non-quantum computing environment, data networking could happen much faster (blowing the doors of gigabit ethernet) by being able to instantly transfer the entire contents of a hard drive from one place to the next along fiber; no longer are you sending electrons at high speed (c), but now you are transferring the entire data packet straight from one network card to the next.
-cailloux
Quantum Entanglement is actually very interesting. In theory, it could be harnessed to allow me to have my cock in both a mouth and an ass, at the same time!
cmdrtaco has a quantum dick
Re: clarification here is an explanation of teleportation [posted as another part of this thread].
I just figured he opened up his "My Computer" icon, saw Drives A:, C:, D:, E:, F:, etc:, and decided that the letter B stopped existing when the single-floppy PC was introduced.
Clarification:
Quantum entanglement involves creating a system in which the state (polarization, spin, etc.) of two or more particles are 'dependent on' each other. Measuring the state of one particle defines the state of the other, 'magically', over some distance.
HOWEVER make no mistake, nothing in quantum mechanics or entanglement theory allows anything resembling faster-than-light information traveling, nor teleportation as we understand it. This is pure fantasy that many physicists subtly or not-so-subtly use to solicit grants, or at least popular press. (There's plenty of this nonsense in sci-tech magazines.) It certainly worked here.
Here's another example of macroscopic 'quantum entanglement'. I have a bag with two billiard balls, one black, one white. I close my eyes, pull one out and put it in a second bag. Then, I hand you the first bag, and walk across the room with the second bag, and open it. Once I look at the color of the billiard ball in my bag, the color of the ball in your bag 'magically' changes color and assumes a defined state. These billiard balls are entangled, very much like subatomic particles are.
Can you ever transport information faster than light using this method? NO. Can matter be teleported? NO. I really wish these pop-sci articles would put an end to these misconceptions once and for all...
This was presented at the
International Conference on Quantum Information
June 10-13, 2001 at the University of Rochester campus in Rochester, New York.
someone better get their ass in gear and invent an anti-teleportation shield pretty damned quick, otherwise terrorists will just be able to teleport bombs into buildings from anywhere.
maybe something involving large tanks of hot tea... or no tea... or both...
https://www.accountkiller.com/removal-requested
at most message boards, all I have to do is say "MMMMMM PENIS" and everybody is all like "OH MY GOD OH MY GOD THAT PERSON SAID THE P-WORD LETS KILL HIM", but here nobody cares... this sucks
...when I can play Quake IX with my buddy on Mars at LAN speeds.
I got my Linux laptop at System76.
But to get any transportation, you would need to put still need to transport(=move) one of those particles to the new location defeating the point of our transporter!
It either proves Star Trek jargon is real or that this report (along with most "science" on slashdot these days) is baloney)
You're not teleporting matter, you're teleporting INFORMATION about the state of the movement of the particles at point A. From what I've read the first real world application of this would be something akin to the modems and NICs of today. The main benefits of course being that the transfer happens instantaneously and since trillions of atoms can be jostled at the same time, one could send as much information as the recieving end could sort through.
I've long thought that quantum entanglements may have something to do with the impressive ability of many twins to feel what their twin is doing...shoot, it isn't that hard to believe that some of the source matter for the embyos was in an entangled state and thus incorporated into the growing fetus.
I don't have any firm views on this...just wanted to throw it out there.
Writers imply. Readers infer.
do what the title says, unless your female
But what is an object ? :)
Is an object what it is made of ? (ie. the information of the object is the object) or is the object what it is itself ?
Does every single particle have an unknowable divine ID ?
If the object is completely described by its composition, then yeah teleportation might be possible, because it is directly related to the exchange of information.
But, for what I understand, the information exchange itself isn't specialy fast, you comunicate an experiment result by a normal mean.
The good thing is, you don't have to destroy any copy, the process involves destruction itself (of the original, and in fact, before the reconstruction).
You have a pair of entangled particles, A and B, as far away as you want them to be. you want to send a quantum state Q information from where A is, to where B is. incertainty priciple states that you cannot do this measurement without affecting the information itself, but, what you can do, is measure it against A (scrambling A and Q which is the destruction part you can't avoid). the result of this measure of Q against A can be transported anyway you like to B, and applied to it reconstructing the original Q state. it's like a XOR operation
...now if I could just make a half man, half monkey type creature, I'd be all set. I want my monkey-man!
The homepage:
http://www.dfi.aau.dk/amo/qoptics/qoptics.htm
Direct links, that looked related:
http://www.dfi.aau.dk/amo/qoptics/qa.htm
http://www.dfi.aau.dk/amo/qoptics/
http://www.dfi.aau.dk/amo/qoptics/title.html
Dude, I love NASA and the space program, but don't you think that low latency high bandwidth point to point communications to mars would kick ass majorly? Toss up a router on mars and go to town? Come on, this would kill a big obstacle!
HAVE YOU OPENED A NEWSPAPER IN THE LAST 2 WEEKS? We are not indiscriminantly carpet bombing the region as you fuckwit hippies are trying to portray, we will hunt down and kill the monsters who did this. Nobody is calling for it, but you idiots react to it. Why? Because you can't deal with the REAL problem, so you have to make the opposition look worse than it is.
And your sig is offensive - no innocents have been killed by the US in response to the 7000 innocents that were killed by the Al Quaeda demons. Oh, but I'm sure we DESERVED it, didn't we?
http://www.msnbc.com/news/634264.asp
No need to send humans around, or to worry about hibernation. Instead send a probe with really good sensors on it. Then use virtual reality to let an "astronaut" here on earth to explore the planetoid. Neat!
The potentials, of course, are staggering, but I have one question. Should the ability to teleport/transport matter between two points become reality, what of that vaporous non-matter that is so imporant? Our memories, our knowledge, all that is us? How do you transport something like that? Even if it's a duplication and not a true teleportation, how do you duplicate something like that? Wouldn't we just be transporting empty shells...the skin and bones and blood...but not the soul?
In anycase I guess my commute won't be shortened anytime soon.
AOL IM? ICQ? Yahoo Chat??? Bah! I use Bitwise baby! http://www.bitwisechat.com/ My BW ID: virginia
Oh well, welcome to the "Age of Access"...
That is all.
the reason we "laugh" at Star Trek is because it does such a dippy, ignorant, bad job of recycling the world's sf ideas, dressed up in a sappy soap opera shell and performed by the worst actors the galaxy could muster. The idea of a teleporter was not originated on the damned program. Not that this is a teleporter anyway, at best it might someday offer some sort of "simultaneous" communications - like the Ansible from Le Guinn's The Dispossed.
Every time a remotely sf idea get mentioned on it some bloody fool comes along and blabs about the uncanny similarity to Star Trek..
SHUT UP! SHUT UP! SHUT UP! YOU ARE BORING EVERYBODY!
"Since the beginning of time, man has yearned to destroy the sun"
...
-- J. Montgomery Burns
Ignoring the fact that this technology does not permit the transmission of matter, only information
If one could teleport matter, how much cadmium or other neutron absorber would one have to teleport into the sun in order to quench the nuclear reaction and make Burns' dream a reality? Or would it just not work at all?
...but was published in Nature 27 Sep 01.
As far as I'm concerned, I'd rather hear about it now, instead of back in June. Then it was just a paper presented at a conference. There's thousands of those, and I've presented a few myself.
Now, however, it's a paper that's been published in Nature. Can't say that I've ever had that distinction.
J.J.
- Nature is a peer reviewed journal, and one of the more prestigious ones to boot.
-- dragons_flightDamn, here I've been going under the misapprehension that nature is a big open place full of green things and other things that can poop on you. -- ENOENT
Sheesh! Do mod points destroy your sense of humour? This was clearly a joke! I can't give you karma, but I can give you my appreciation, which trades for karma about 3::4 on the junk bond market.
-- MarkusQ
Teleportation may be years away, but there are much more important implications for privacy of communication. Using the same principle, one could teleport a message to a pre-set destination and be sure that it would arrive unintercepted.
You can not duplicate a quantum state. You can create two electrons with identical spin, but what you can not do is, taking one electron with an arbitrary spin and prepare a second electron with identical spin without altering the first one. What you can do is 'transmit' the spin from the first to the second electron. But in the process the spin of the first electron will be destroyed. To do this you need quantum entanglement between the affected electrons, maybe mediated by something (polarized photons maybe) and maybe a transmission of conventional information (the result of a mesurement process).
A spin is only an example for a very simple quantum object, a more complex object is just described by more quantum states (this is of course a huge understatement, working with more than simple assemblies of a few spins poses a lot of technical problems, and that is where the experiment made a major contribution). You can 'classically' copy an object (that is, you can put all the right atoms at the right places) but you can not copy the quantum state, you can only transfer the quantum state from the first object to the second (and maybe even transfer state 2 to object 1 in the same process), so the question is, if a 'classical' copy is sufficient to 'copy' a person, or if the quantum state makes all the difference.
"By the way if anyone here is in advertising or marketing... kill yourself." -- Bill Hicks
but it is interesting that this report hits the streets the same day that Enterprise debuts.
No, what's interesting is that there's MORE IMPORTANT THINGS going on in the world at the moment. Or has all this geek-wanking blinded everyone to the fact that the potential for a catastrophic biological terrorist attack in major Western cities has increased a thousand-fold over the past fortnight?
How is Quantum Entanglement going to save us when the factories can't keep up with the demand for gas masks and NBC protection suits? Didn't we learn ANYTHING from Aum and the Sarin attack on the Tokyo subway?
What geek sites need to be focusing on now are PRACTICAL uses of technology to help restore some piece of mind to the population. All the intelligence in the world can't outsmart a single determined zealot with a vial of Anthrax.
Don't lie, I saw you laughing over dinner.
Ruin my fun...
Think about communicating as the speed of light, with no wires. There would be no barriers to net communication and speed.
..
But terrorists trasmitting their plans over the internet will likely be unstoppable,
...unless we could make some kind of Quantum Entanglement Feedback, and blow up their computers and themselves.
It was a relatively decent show, yes, but the way they ended it was really stupid. That bit at the end of every episode where they had some guy with a deep voice saying something trite that we're all supposed to think sounds really profound, or that it conveyed some really deep moral or something. Half the time it was just cliched tripe. That was corny, they should have just done away with that ending bit, and the show would have been better for me.
I fully agree, its such a load of tripe, these people are morons. Its been over two weeks and the US hasn't killed a single person yet, and we're supposed to be protesting the US killing innocent people??? Advocate peace? Yeah great idea, lets show the world how peaceful we are, by sitting around on our butts doing what effectively amounts to nothing while the terrorists plot the next attack, which will likely kill many times more people.
Bring a tiny handful of guilty people to justice? Come oon .. thats the formula followed in the 1993 bombing of the WTC, six guilty people are sitting in jail .. and hello, did that stop this from happening? I don't think so, there are THOUSANDS more zealots just lining up to drop nukes and biological weapons on the US. If you only brought Osama and a handful of other guilty people to justice, thats fscking stupid - then you're just asking to be attacked again, by those thousands more who also seek glory in the side of a building.
Anyway, I do get the impression that for once the US is actually thinking their reaction through, instead of the usual knee-jerk bomb-a-pharm-company type reactions. I would presume that they now realise the scale of the effects these actions have. But its damn annoying listening to people complain how the US is knee-jerk killing innocent people when they haven't done a thing yet.
Some innocent people will die, sure, but heres the choice that the USA is currently faced with: (1) kill a couple thousand innocent people accidentally in the quest to end terrorism, or (2) allow terrorism to continue and let *millions* of innocent people die in the next horror terrorist attack, via weapons of mass destruction. Its a no-brainer. (I wanted to say "innocent US citizens" but then remembered we must realise that this was a totally random attack that killed people from every continent on the planet).
Hang him!!! Flog the bastard!!! 40 lashes from Whorf!!!
It may not be teleportation, but it's certainly
the ultimate key exchange. Here let me generate
a secret key at my end. Now, with my QE I twizzle
the magic at this end. Bingo ! Instantly reproduceable at the other.
Better not let the terrorists get hold of this.
Cheers,
-- jon
There is a mirror of the paper here at the arXiv.org e-Print archive. 11 pages of pdf fun can be found:
HERE
Have fun!
I wonder if this shit is as powerful ass Scott Bakula's Wang.
CAN YOU IMAGINE A BEOWULF CLUSTER OF SCOTT BAKULA'S WANG?????
I find it gratifying that an earlier comment of mine about quantum entanglement was rudely put down as "impossible outside of science fiction and dilbert cartoons" is now receiving some front-page lovin'
OK, how the hell do you moderate some of these comments? Not only do you need a phd to comment, but you need one to judge the merits of said comments.
Christ, I thought reading the article itself was hard enough....
Praying for the end of your wide-awake nightmare.
Some people seem a lil confused here about the teleportation aspects of this, but the reality of it is that quantum entanglement doesn't allow the teleportation of an object to any arbitrary location... you have to first split your particles (to create the entangled state), then move one of them to another location. Changes made to one of them would have the oposite effect upon the other. The theory is along the lines of, if you use one of these particles to "observe" another particle (eg, firing them at each other), the energy changes would be mirrored by the other. As we all know, observing something destroys (or at least, changes) it. As the oposite effect happens at the other side, this could be used in combination with another paticle to recreate what you just destroyed. So you could only transfer your object to whereever you've put your reciever.
However you do run into problems... firstly, if you don't reacreate the whole object fast enough, you get problems... as you're moving parts of atoms at a time, and atoms don't really like existing half here and half there, and will tend to break up and shoot off in all directions.
Secondly, you can't read data smaller than the reader... should a particle be undergoing a quantum event (eg, quantum leap while changing frequencies), you'll lose that data.
Quantum entanglement is really not all that strange... it's just particles that exist in different locations in space at the same time, as opposed to most of what we interact with, which are particles that exist in one location in space, but many locations in time. What I'm keen to see is if anyone can create a particle in more than 2 spaces... that opens the window to transmitions being monitored... and if "teleportation" is ever sorted out... would mean duplication of complex atomic structures...
...food for thought
Even if you reduce the energy by many orders of magnitude, it is still a lot. Thus I don't think large-scale teleportation will ever be practical without tremendous advances in basic physics. However there are intriguing possibilities. An ensemble of a trillion or so particles may be small, but it's not worthless. E.g., you could deposit a small array of nanodots using atomic-force microscope lithography (at great cost), then replicate them across an entire wafer using teleportation. Or you could use it to grow a nanowire along a chosen axis: the coherence length would only need to be tens of Angstroms, and the coherence time would only need to be nanoseconds. Teleportation lithography would be low temperature, which would vastly expand the materials available to the designer (conventional semiconductor lithography materials have to survive temperatures of 500 deg. C or worse, which rules out all sorts of otherwise useful substances).
-- ;-)
Kuro5hin.org: where the good times never end.
the one good thing about teleporting people as a means of transportation is that there would be less planes to hijack and smash into buildings. i mean you could smash a person into a building, but i'm not sure that it would have the same effect, people not being composed of mass quantities of jet fuel and all. the only problem is that maybe you could just teleport a bunch of jet fuel at the building. hmmm. maybe a good anti-smoking add. hehe.
No it's bandwidth here....
Their method is still limited to the speed of light... They're using a laser to "connect" the two hunks of matter. However they're saying they can transfer the state of trilions of hunks of matter at near light speed. That's serious bandwidth with some darn fine decent latency.
G
One thing enterprise completly misses, is that once you can do "beaming" you can also as good -copy- any mass including you.
:o) and if if it gets copied too.
This different as cloning, since your duplicate would really have absolute the same structure, including same memory and same beeing. Only the ultimate old question is left if there is something like a soul
"Beaming" would function in reality like sending a fax, not like the original enterprise serier used it to save production costs (No lander spec. effects required). Yes the other side receives the image, but the original is still there. I personally do not want to be beamed that way.
--
Karma 50, and all I got was this lousy T-Shirt.
...In 1998 what has been described as the first teleportation experiment was done when scientists at the California Institute of Technology teleported a beam of light across a laboratory bench...
... Set ... <Click> Can you see it? Can you?"
"Ready
Talking about wierd things happening at the speed of light - the wierdest thing I've heard about is that if you're travelling near the speed of light and you shine a light in the direction of travel, the light would travel away from you at THE SPEED OF LIGHT! Thus the light beam is travelling at almost twice the speed of light! Can anyone confirm this?
Arrrghhh! My head!
Pinky: "What are we going to do tomorrow night Brain?"
Brain: "I would tell you Pinky but this 120 char limi
Given that one -could- teleport animate matter (e.g. Spock) using some technology derived from quantum entangling, surely it is imperative that the matter to be teleported be kept at near-zero kelvin, otherwise you are talking about a load of mush at the other end. I love the idea of telling nearly every particle to "Keep still while we transport you!"
This comment was written with the intention to opt out of advertising.
I think before we teleport stuff a BIG use would be communications. Imagine 0.0ms ping time to any computer on the planet.
regarding teleportation. it's simple.
I'm sorry, but that's got to make you laugh.
Tuus crepidae innexilis sunt.
Yes, initially the particles have to travel at the speed of light to reach the destination, but once there, the travel of the collapse is instantaneous.
So let's so you have 2 communication stations, each has 1 billion particles in storage, tied to one another and sequentially numbered. By collapsing the wave of a particle on one end, they can send one bit of information to the other instantly. Again, the only drawback is that you have to initially send the particles at light speed.
To do anything like teleportation, you would need to entangle all the quantum states of all the atoms. Here they entangled 1 quantum state that was averaged over all the atoms. This is quite a bit easier; some may even call it cheating. It means that even though you have "macroscopic" entanglement, you don't have "more" entanglement than if you had simply entangled two individual particles. It is an interesting experiment nevertheless, since it shows how some degree of entanglement can be achieved over populations of particles. Even though no pair of cesium atoms in the two samples was entangled on its own, the population was entangled when you averaged their states. As far as "practical" uses of entanglement (encryption, computation) this is an incremental advance at best.
all they have to do is put a machine on the moon and a machine on earth, and use the quantum machine to send a YES/NO bit to the other end, and if its faster than light speed, then I will be impressed. until then... humbug!
You can find the preprint at
http://xxx.lanl.gov/abs/quant-ph/0106057