Let's see if I can pick up where rsaunders left off, with an analogy. Let's say that we have an entangled pair of coins, so that when they are tossed independently, the results are always opposite. If one is heads, the other is tails, regardless of how far apart they are tossed . But the probability of heads turning up is still 1/2 for either one when examined alone. In other words, if you don't see the results of the other coin, you cannot tell if there's anything unusual about the coin you're tossing. Is "information" somehow being passed on between the coins? Yes, it's a special kind of information, akin to quantum information. Can we send messages with such a magical pair of coins? Unfortunately, no, because both the "sender" and the "receiver" possessing such coins cannot tell their coins apart from ordinary coins, until the results are brought together and matched.
Addendum: In response to bladecrimson's answer alleging possibility of "classical communication" via quantum non-local mehods, this is what's wrong with using simple analogies in an effort to point out the problems. I've deleted the comment about what happens if you attempted to modulate the "entangled coins", because now we're dealing with real quantum entangled objects. Yes, you "may" communicate quantum observables via non-local means, but you still cannot decipher the signals until you send results for comparsion by classical means! The potential value of this form of communication is for encryption systems, but as right now, I know of no way to truly have "instantaneous communications" via non-locality, as we see regularly on science fiction programs.
Since bladecrimson is an telecommunications engineer, maybe he can explain to us how it's done. It's of great interest to me, and i would certainly learn a great deal if true. He has posted a couple of wiki articles on this, but here's an excerpt from one of them:
"This measurement results in classical information which must be sent to the receiver to complete the teleportation. Importantly, the classical information can be sent after the quantum channel has ceased to exist. The send particle is destroyed in the measurement and thus is not actually moved from one location to another to create the quantum channel."
2007-03-14 20:11:29
·
answer #1
·
answered by Scythian1950 7
·
0⤊
1⤋
Unfortunately, no. The effect is real; it has been experimentally demonstrated. But because of the way it works, it cannot be used for communication at faster than the speed of light. The details are too complex to explain here.
2007-03-14 19:55:16
·
answer #2
·
answered by Anonymous
·
0⤊
1⤋
yea, it may be utilized with entanglement to theoretically encode options straight away over any distance yet for the prompt its more beneficial accessible to artwork with photons. right here's a short communicate about it.
2016-12-02 01:00:29
·
answer #3
·
answered by ? 4
·
0⤊
0⤋
Its called Quantum Entanglement - And Yes it can and is, Dont listen to ignorance, do your own research and make up your own mind, my friend...
Here>
http://en.wikipedia.org/wiki/Quantum_communication_channel
http://en.wikipedia.org/wiki/Quantum_entanglement
2007-03-14 20:17:57
·
answer #4
·
answered by Anonymous
·
1⤊
0⤋