Quantum teleportation of an arbitrary two-mode coherent state using only linear optics elements

摘要

We propose a linear optics scheme to teleport an arbitrary two-mode coherent state. The devices used are beam-splitters, phase-shifters and ideal photo-detectors capable of distinguishing between even and odd photon numbers. The scheme achieves faithful teleportation with a probability of 1/4. However, with additional use of an appropriate displacement operator, the teleported state can always be made near-faithful. (C) 2008 Elsevier B.V. All rights reserved.