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 Unity fidelity multiple teleportation using partially entangled states


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We show that the recent multiple teleportation protocol MTP presented in Ref. Phys. Rev. Lett. 100, 110503 2008 is not restricted to the Knill-Laflamme-Milburn KLM scheme. Rather, we show that MTP is quite general and can be implemented using whatever teleportation scheme at hand. We also present two new MTPs which are more efficient than the original proposal, requiring just half the number of teleportations of the original scheme to achieve at least the same probability of success. One of the protocols, however, employs less entanglement than all the previous ones yielding, surprisingly, the greatest probability of success.



Autor: Gustavo Rigolin

Fuente: https://archive.org/







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