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Nonmultiplicativity of probability of faithful teleportation in the Knill-Laflamme-Milburn scheme
Andrzej Grudka, Joanna Modławska
195 - 200
10.3233/978-1-60750-547-1-195
NATO Science for Peace and Security Series - D: Information and Communication Security
Volume 26: Quantum Cryptography and Computing
Abstract

We discuss linear optical quantum teleportation in the Knill-Laflamme-Milburn scheme. We calculate the probability of faithful teleportation when one uses nonmaximally entangled states. We show that for single teleportation maximally entangled state is optimal. On the other hand for a sequence of teleportations nonmaximally entangled state is optimal. Hence, probability of faithful teleportation is nonmultiplicative. We also introduce measure of nonmultiplicativity and show that nonmultiplicativity increases with the number of teleportations.

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