Well, I thought this might just be possible. Instead of having Bob and Alice having an entangled pair, they have multiple (> 2) amount of entangled quantum object (I'm not sure if this is possible too, but I assume it is because in quantum teleportation, when the measurement is taken B is simultaneously entangled with A and C). Alice has another qubit, which she proceeds to scan A and B together, and she gives the information to Bob, where he applies a suitable transformation to the rest of the quantum objects to the same qubit (C, D, E, F, G...)

Is this possible?

  • $\begingroup$ Related: physics.stackexchange.com/q/77391/2451 and physics.stackexchange.com/search?q=is%3Aq+cloning $\endgroup$ – Qmechanic Dec 9 '13 at 0:42
  • $\begingroup$ The point is after quantum teleportation the original state will be destroyed. $\endgroup$ – Ali Dec 9 '13 at 1:04
  • $\begingroup$ 1)Qmechanic - Sorry but I don't quite understand those... 2)Ali - Well that shouldn't be a problem? $\endgroup$ – user35503 Dec 9 '13 at 1:11
  • $\begingroup$ Clone implies having two of something, not just a copy and then destroy the original (teleportation) $\endgroup$ – lionelbrits Dec 9 '13 at 2:09

This is not possible due to unitarity of quantum mechanics; see the no-cloning theorem.


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