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Mathematical Breakthrough Sets Out Rules For More Effective Teleportation
dsinc sends this news from the University of Cambridge:
"For the last ten years, theoretical physicists have shown that the intense connections generated between particles as established in the quantum law of ‘entanglement’ may hold the key to eventual teleportation of information. Now, for the first time, researchers have worked out how entanglement could be 'recycled' to increase the efficiency of these connections. Published in the journal Physical Review Letters, the result could conceivably take us a step closer to sci-fi style teleportation in the future, although this research is purely theoretical in nature. ... Previous teleportation protocols have fallen into one of two camps, those that could only send scrambled information requiring correction by the receiver or, more recently, "port-based" teleportation that doesn't require a correction, but needs an impractical amount of entanglement – as each object sent would destroy the entangled state. Now, physicists from Cambridge, University College London, and the University of Gdansk have developed a protocol to provide an optimal solution in which the entangled state is 'recycled,' so that the gateway between particles holds for the teleportation of multiple objects. They have even devised a protocol in which multiple qubits can be teleported simultaneously, although the entangled state degrades proportionally to the amount of qubits sent in both cases."
Bit optimistic, aren't we?
Suppose I teleport an object from a height of 1000 feet to a height of 0 feet about sea level. There has been a loss of gravitational potential energy -- where does this energy end up? Conversely, if teleporting the object to a higher elevation, how is the gravitational PE imparted to the system?
Maybe?
Is that you, Bones?
They say the first thing to go is your penis. Well, it's either that or your brain. I forget which...
Well, maybe someday that would help to create something like USB but without physical medium between two connected points? Yeah, I know, "no information can be transferred through QE", but still, who knows how else can we sidestep "obvious physical limitations"? Not now, but in 20, 50, 100 years from now? I'd like to imagine our world with such technology widely adapted, and I just can't - possibilities are truly mind-boggling. Ah, I just like news like this - helps to get out of winter depression a little.
Absence of proof != proof of absence.
This one is even better so far, half of the comments are retarded trying to be serious.
The universe would not tolerate more than one of me.
Now, turning to Bill Cosby, "What's a qubit?"
Gary Dunn
Open Slate Project
Instant teleportation of information according to STR violates causality. Is this a really serious science? Recycling state of quantum entanglement might be possible but as far as I know, quantum entangled particles don't "transport" information.
Maybe you wouldn't have to figure out which way to plug in the goddamn USB connector.
Until we understand consciousness, it's hard to say. Entanglement might have something to do with it. Duplication of a conscious state could be prohibited.
Who ordered that?
Yes, they already use some confusingly advanced technology there.
Absence of proof != proof of absence.
Even better, you can plug it in both ways at once. As the physicist said to the grad student.
systemd is Roko's Basilisk.
As I understand teleportation, the original 'you' is destroyed, and a duplicate 'you' is created in another location. I have always found this prospect disturbing. Could anyone familiar with quantum physics chime in? I'm curious as to whether a solution could be found which also preserved the original consciousness (and not by simply backing it up in another location).
You used to be ten years old, certainly not at all physically the same person you are now, and yet you don't seem disturbed that your ten year old self has "died" only to be replaced with your current self...
"LOL but on Slash, sci-fi is real. Space elevators, warp drives, Mars colonies and the hundreds of attendant magical technologies and fantasy materials are just a question of, like, how hard we really want them to happen."
And remember Dick Tracy's video wristwatch was described in the 1930s when radio and telephone was less than 50 years old. We have it now and in other forms such as cell phones and tablets less than 75 years later. Slashdot is visited by people in research and science fiction, who knows what could be in the next 100 years if we put the "old nose to the grindstone".
Is this going to help me untangle my Christmas tree lights?
My karma is bad. Don't get too close!!!
Not really. 2 entangled particles can actually be viewed as a single particle with 2 disparate manifestations.
Eg, take a wave of light, and send it through a beam splitter. Half the beam goes right, the other half goes left.
The actual light being split is exactly the same light, going in 2 directions. The photons in branch A are entangled with the photons in branch B. (More or less.)
If a device were made that supplied sufficient energy at the "destination" to entangle 100% of all the particles in your body without altering any of the actual states of those particles (pure entanglement, no measurement), then you would exist in both places simultaneously.
The ethical question, is if the dissolution of the "source" instance is murder or not.
Of course it's me! I'm a doctor, not a quantum brick-layer!
IF countBeingsInChamber > 1 THEN GOTO abort_transfer
This is a complete fallacy. The 'you' at 10 years old and the 'you' now are physically the same person. Let's say you clone yourself, and through some convenience-of-hypotheticals magic, your clone is instantly the same age you are.
Now, do you expect that clone has the exact same memories as you do? Even if it is assembled at an atomic level to resemble the exact state of your body, does this 'clone' have your consciousness? Are you able to hear their thoughts as the same being, or is it completely separate from you? Is it a copy but unconnected, or has your mind somehow become linked with it? Of course, we know through animal cloning that it would not be connected, and you would have different physical matter regardless of the precision with which you were duplicated.
In this case, regarding translocation and reassembling a person at a remote location based on 'teleported' information, it is likely that there would either be two of you with the same memories and thought patterns, or if the original is somehow destroyed in transit, you would just cease to exist and your 'cloned' version would just take over as you in the world none the wiser. There is no process by which consciousness should be transferred and not just duplicated in this example - 'consciousness' is relative to the actual physical matter of YOU, not to the general pattern of your atoms.
If the only way you can accept an assertion is by faith, then you are conceding that it can't be taken on its own merits
Where's my fucking flying car?!
Table-ized A.I.
Hope they are aware of this before spending too much monies,
http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=/netahtml/PTO/search-adv.html&r=1&f=G&l=50&d=PG01&p=1&S1=20060071122.PGNR.&OS=DN/20060071122&RS=DN/20060071122
-do note: this is akin to the person claiming barbie dolls he dug up were ancient relics.
The universe would not tolerate more than one of me.
I can understand this. What I can't understand: how could it support even one instance of you? (non-malicious kidding. Or... "was speaking to myself", if you like it better).
Questions raise, answers kill. Raise questions to stay alive.
Would this do:
memmove(&over_there, &me_here, sizeof(me));
Someone novice enough to skip the verification of the source against equality to NULL (SIGSEGV ensued).
Questions raise, answers kill. Raise questions to stay alive.
And today, we have vehicles that utilize electricity generated from atomic decay, use EM fields to generate lift, and transport more, and heavier goods than 1930's aircraft... at higher speeds. Do you see how paradigm shifts work?
I've fallen off your lawn, and I can't get up.
This looks wrong to me. It it is freeable memory, you should already be holding a pointer to it.
The Tao of math: The numbers you can count are not the real numbers.
The address-of operator guarantees that you don't get a NULL pointer.
The Tao of math: The numbers you can count are not the real numbers.
That patents applies only to systems making use of gravitational waves, wormholes and hyperspace.
The Tao of math: The numbers you can count are not the real numbers.
We don't have inefficient teleportation let alone any teleportation. So take your mathematics and work it out with a pencil.
The mind conceives, the body achieves, the spirit manifests.