Classical phase-space descriptions of continuous-variable teleportation

Details Classical phase-space descriptions of continuous-variable teleportation Classical phase-space descriptions of continuous-variable teleportation

2004-01-23

arxiv.org/abs/quant-ph/0401149v2

Physics

Quantum Physics

New version contains minor changes requested by journal referees

Scientific paper

10.1103/PhysRevLett.93.040506

The nonnegative Wigner function of all quantum states involved in teleportation of Gaussian states using the standard continuous-variable teleportation protocol means that there is a local realistic phase-space description of the process. This includes the coherent states teleported up to now in experiments. We extend the phase-space description to teleportation of non-Gaussian states using the standard protocol and conclude that teleportation of non-Gaussian states with fidelity of 2/3 is a "gold standard" for this kind of teleportation.

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