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Old 03-27-2005, 08:21 PM
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PalaceGuard PalaceGuard is offline
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africandan - I thought that quantum entanglement “enabled” teleportation.

Take that photon for example. At any time, it has a finite number of quantum states – each one has some value. Suppose that two photons, one photon at place A and the other at place B, share an entangled state of polarization. I’ve read that it is possible to perform an operation on the photon in place A that will transform the photon in place B into one of two states, depending on the two possible outcomes of the operation at place A: either polarized, or an unpolarized state that is related back to A in a definite way.

After the operator at place A communicates the outcome of the operation to place B, the operator at place B knows either that the two photons are the same, or how to transform the local photon to the same state as that in place A by a local operation.

The way I understand this is that the operators in place A and B have managed to use their shared entangled state as a quantum communication channel to destroy the polarized state of the photon in place A’s part of the universe and recreate it in place B’s part of the universe.

Now, if an observer cannot distinguish between the photon in place A and place B, then isn’t it reasonable to argue that the photon on place A has ”teleported” to place B?
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