Classical phase-space descriptions of continuous-variable teleportation.

نویسندگان

  • Carlton M Caves
  • Krzysztof Wódkiewicz
چکیده

The non-negative 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 pure states with a fidelity of 2/3 is a "gold standard" for this kind of teleportation.

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عنوان ژورنال:
  • Physical review letters

دوره 93 4  شماره 

صفحات  -

تاریخ انتشار 2004