Unity fidelity multiple teleportation using partially entangled states

Details Unity fidelity multiple teleportation using partially entangled states Unity fidelity multiple teleportation using partially entangled states

2008-07-22

arxiv.org/abs/0807.3549v2

J. Phys. B: At. Mol. Opt. Phys. 42, 235504 (2009)

Physics

Quantum Physics

4 pages, 3 figures, RevTex4; v2: 6 pages, 7 figures, more results, published version

Scientific paper

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 MTP's 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.

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