I don't know if teleportation of physical objects will ever be possible, but imagine how this might revolutionize interplanetary or interstellar communication. The fictional "ansible" used in novels by Ursula Leguin functioned according to the "Principle of Simultaneity," which as far as I can tell is not that different from quantum entanglement.
3rd June, 2014 @ 10:07 a.m. (California Time)
Love the idea! Will this enable us to send information instantaneously across the universe, violating the relativistic information cone propagation theory of Einstein?
3rd June, 2014 @ 6:47 p.m. (California Time)
Not a first, see:Quantum "spooky action at a distance" travels at least 10,000 times faster than light
By Brian Dodson
March 10, 2013
3rd June, 2014 @ 7:05 p.m. (California Time)
@ John: Yes, "Quantum enetanglement" is a known phenomenon, but I think that if you read the article here you will see that it talks about is the world first at transmitting data this way.
3rd June, 2014 @ 11:49 p.m. (California Time)
@John: I think the "world first" here isn't the entanglement or even maintaining it at significant distances. I think it is maintianing it while transmitting meaningful quantities of data.
As you say entanglement has been done. Doing it at a distance has been done. I can not find the article but there was an experiment where some information was sent between two points that were 1000 meters apart, so the first here is the stability required to transmit more than a few bits of data.
4th June, 2014 @ 6:30 a.m. (California Time)
Love the idea of being able to read tomorrow's news in the morning with my coffee..
More practically, this could mean instantaneous networking...
4th June, 2014 @ 8:36 a.m. (California Time)
Beam me up, Scotty! Love it! Keep moving forward!!!! Vote Blue!
4th June, 2014 @ 8:46 a.m. (California Time)
OMg, and I don't mean the Higgs boson. Could the also be know as 'bi location'? I don't know of anything that can do that. Except... God? Surely not except He is an extra-dimensional being that is not bound by time and space. No. That just can't be. Then there is that strong nuclear force that keep the nucleus of past hydrogen atoms from flying apart. Isn't that force mediated by a particle called a 'glueon'? And, religiously doesn't the Holy Spirit mediate the love between the Father and the Son? Come on. Then again, back to the Higgs boson that imparts mass to matter in a Higgs field. New Testament describes Jesus appearing in the upper room after His resurrection. As He moved throughout it, He imparted Spirituality upon the Apostles - except Thomas who was not there at the time. No, all that is just, well, mere coincidence. But, Holy Scripture says we are made in God's image and that we have free will, and does the Universe also have free will that is called quantum happenstance in that it is non-deterministic; entropic?
Naw, just luck of the draw - nothing more or less.
4th June, 2014 @ 9:05 a.m. (California Time)
My untrained science fiction mind is trying to grasp this concept. If you think of the separated entangled pair of particles as a microphone, and a speaker to be used for instantaneous long distant communications, of course, it still takes time to DELIVER that 1/2 entangled particle (speaker) to the other side of the universe at the speed of light. So, instantaneous communication across the universe still depends upon the speed of light , and is significant in terms of human life span. So, we will not be dialing up the Crab Nebula soon. Yet, given the suggestion that there a universal "NOW" moment across the universe suggests that there CAN BE simultaneous events every/anywhere. This also suggests that distance as we perceive it is a obstacle only for Newtonian physics..
For short distances, like across the inside a computer, these distances become relatively insignificant at the speed of light. Thus, a computer programed to discover the theory of everything ( as most really are), loaded with all knowledge that we have discovered to this moment may actually disappear into another dimension the moment it is switched on. Is it impossible to predict the future given only the past? Or, will all possible interactions of circumstance and extrapolated mixtures of information evolve into a tangible theory of everything that will allow us to predict outcomes, and direct the future? I can't wait push the ON button and see. Or, perhaps we already have, yet keep coming back to relax and vacation in this dimension.
4th June, 2014 @ 9:05 a.m. (California Time)
Dr. Desbrandes and Daniel Van Gent were doing this years ago at much greater distances using entangled lithium fluoride crystals. They documented and patented their process for equantic communications (company name). You can see the results of their tests here:
4th June, 2014 @ 10:37 a.m. (California Time)
All in All, it is still a shame that this was not shown to be possible while Arthur C. Clarke, Issac Asimov, and Gene Roddenbery were all still alive.
4th June, 2014 @ 11:31 a.m. (California Time)
It is impossible to make heads or tails of this report. It is half joking, half semi-serious, and supplies only very sketchy information about what is going on.
What I have read over and over again suggests that the correlations produced during entanglement experiments are only detectible in retrospect, that is, by transporting information over conventional lines after the entanglement test has been completed.
I am not able to decipher what claims are being made here. I can't even figure that out.
4th June, 2014 @ 7:53 p.m. (California Time)
Quantum teleportation (QT) cannot transmit faster than the speed of light. Although quantum entanglement shows instantaneous correlation this can only be verified using normal communication. Similarly the mechanism for QT relies on normal communication. Turning physical objects into information, using QT to transmit that information, and then turning the information back into the object is still science fiction.
5th June, 2014 @ 3:20 a.m. (California Time)
That's great for communication, and all, but I don't think it would apply toward transporting Physical objects. ...besides. If we could, how would Customs handle that?
Another question is why is no one in StarTrek having an existential crisis considering that Teleportation can only happen one of three ways. 1. A new body is created for them on the surface world, while their consciousness is beamed to that body, and when they beam back that body/person is destroyed. 2. Their body gets deconstructed and the information is transmitted to the surface where a new body is then reconstructed. So, it's like sending a fax, but a person, and rather than the original remaining It DIES. So, every time a person teleports, they literally die and are then resurrected. 3. Their atoms are shot down to the surface planet and reorganized (hopefully in the correct order and with 100% of the original atoms), however, in the process of doing this they are momentarily dead.
If I were on the Enterprise, I would take the shuttle every time.
5th June, 2014 @ 7:23 a.m. (California Time)
There are several misconceptions about quantum information that are creating a large amount of confusion in the comments. While I can't really address attempts to reconcile quantum physics with a literal interpenetration of the bible, I think I might be able to clear up some other confusion by pointing out that conventional means are not needed to verify quantum information if it is passed redundantly (there are several papers over the last decade talking about redundant quantum information transmission and possessing), and while traditional electronics are currently still needed to input and read quantum information, a large share of that is a matter of ironing out details and doing some engineering and not so much a matter of any fundamental principle. However, even if we assume that that we will never be able to get away from traditional electronic input and output from quantum computation and transmission, there are still several major advantages to using quantum systems for the heavy lifting: truly instantaneous data transfer (international signals traveling at a significant fraction of the speed of light still have a delay long enough to be recognized by humans, not to mention delays between earth and space craft). If a system has even a fairly large (say a few seconds) delay in translating data, that's still a huge advantage over the kinds of delays we see on extra planetary exploration (even if the system can only send and receive limited data, it could still be a huge advantage as an emergency countermeasure). Quantum computers also have some major advantages in the way data is processed, so if you can use a quantum computer to process something that might take hours of conventional computing in a few minutes or even seconds, then the need to use a few seconds to input data and read the result still allows for a huge gain in time efficiency.
As for what's interesting about this result, I would point to the fact that it looks like they were able to either keep the same electrons entangled over multiple permutations of data, or re-entangle them at a distance so that they didn't have to rebuild the system every time they planned to send another permutation. This is important to building robust quantum computers and is a pretty exciting result.
5th June, 2014 @ 9:13 a.m. (California Time)
with this technology we could control robots in outer space in real time ,and exploit it's resources .
5th June, 2014 @ 12:03 p.m. (California Time)
They used synthetic diamonds, I wonder what information will come out of an old diamond from an ancient temple.
Heck Aliens might have deposited crystals with trapped electrons that are entangled, waiting for us to figure out how to use it.
Maybe there are entangled electrons in the crystal skulls!!!
5th June, 2014 @ 3:25 p.m. (California Time)
If this setup can be used to send information, then it is effectively the ansible of SF. There are still some limitations as follows:
1. One of the electrons must be physically carried away to the receiving station in advance of the communication session, and without suffering decoherence in the process. That is, AFAIK, quite challenging; quantum superposition states are notably fragile.
2. If this is successful, then the electron pair can be used to transmit one bit of information instantaneously or nearly so (at vastly superluminal speed at any rate). To transmit more, you need more entangled electron pairs.
As you can see, this is not unlike the scheme used to communicate with messenger pigeons---the pigeons native to the destination must first be land-transported to the origin, and each pigeon can be used for transmission once. Except that here you are dealing with superluminal pigeons. :-)
This is pretty exciting if true, but alas, I am afraid that it doesn't quite work this way. You see, what the article says is that you can flip the first electron's spin, and when you check, the electrons still have opposite spins---the other electron flipped as well, at the same time. That's nice, but to actually send information you need to make the original electron point a specific way: say, up for 1 and down for 0. But the article does NOT say that you can do that. All it says is that you can flip the original spin, without knowing what it was to begin with*, and which way it will end up. That is not the same as making it point up on demand (thus encoding a 1) and no information can actually be transferred.
*for the nitpickers out there, it had no specific direction to begin with---it was in a superposition of states. But you still cannot perform an operation on the superposed electron that will guarantee (or even make more probable) that it will point a specific way after you decohere it. Sorry, but still no cigar.
5th June, 2014 @ 3:27 p.m. (California Time)
In a materialistic view of nature all phenomena and forces must derive from material particles. "without an actual physical particle" must be a string of particles like gravitons. Instantaneously teleportation of information through this string of gravitons could mean 10.000 times the speed of light. For a future space ship to be able to use this apparent spin velocity of gravitons constitutes one of three major problems for such a space transportation system. The second is to avoid collisions with nuclear particles during such a beyond the speed of light space flight and the third to prevent the binding of electrons with protons NOT to fall apart.
7th June, 2014 @ 8:34 a.m. (California Time)
@StWils Ursula Le Guin is still around. I hope they consider putting one of those diamonds on Virgin Galactic. Zero latency satellite communication would be very nice.
8th June, 2014 @ 12:57 a.m. (California Time)
If distant particles respond to perturbation with no measurable time interval (apparent simultaneity) and time and space are part of the same stuff (space-time) then the fact that this is possible should mean that there must be some other layer or dimension of the universe whose properties are constrained by neither space nor time which, in turn, should mean that either space or time or both are an illusion since entangled particles seem not to care about the restrictions space and time seem to impose on boring macroscopic objects, anything with mass, and slow-poke photons.
9th June, 2014 @ 2:06 p.m. (California Time)
I was wondering if anyone knows if the "classical bit" limitation on speed of data transmission has been overcome in this experiment. So far as I know, quantum-entangled data transmission isn't instantaneous yet because transmission of qubits so far depends on classical bit transfer which is speed-limited.
9th June, 2014 @ 5:12 p.m. (California Time)
We could be creating quantum devices transmitted from future constructed teleportation devices, from "a" future/dimension. Would we have a need to maintain multiple races and genders if lifeforms could be generated by transmitting vast information onto quantum particles/systems and housing that knowledge in a "physical" form able to live in multiple environments. Self healing, learning, and updating through teleportation.
22nd October, 2014 @ 8:10 p.m. (California Time)
My simple mind sees this as a transmitter/receiver situation. How do we get the receiver where we want it? If we want the receiver to be multiple light-years away from the transmitter, how do we get it there in time to be of use? We need a time-traveler from "over there" to come & get the receiver.
4th June, 2015 @ 12:52 p.m. (California Time)