Classical phase-space descriptions of continuous-variable teleportation
Quantum Physics
2009-11-10 v2
Abstract
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.
Cite
@article{arxiv.quant-ph/0401149,
title = {Classical phase-space descriptions of continuous-variable teleportation},
author = {Carlton M. Caves and Krzysztof Wodkiewicz},
journal= {arXiv preprint arXiv:quant-ph/0401149},
year = {2009}
}
Comments
New version contains minor changes requested by journal referees