Degradation of continuous variable entanglement in a phase-sensitive environment
Quantum Physics
2015-06-26 v2
Abstract
We address the propagation of twin-beam of radiation through Gaussian phase-sensitive channels, i.e. noisy channels with squeezed fluctuations. We find that squeezing the environment always reduces the survival time of entanglement in comparison to the case of simple dissipation and thermal noise. We also show that the survival time is further reduced if the squeezing phase of the fluctuations is different from the twin-beam phase.
Cite
@article{arxiv.quant-ph/0401172,
title = {Degradation of continuous variable entanglement in a phase-sensitive environment},
author = {Andrea R. Rossi and Stefano Olivares and Matteo G. A. Paris},
journal= {arXiv preprint arXiv:quant-ph/0401172},
year = {2015}
}
Comments
to be published in the special issue of J. Mod. Opt. (April 2004) edited by R. Bonifacio, B.G. Englert and M.G.A. Paris, devoted to the 2003 Garda Lake Workshop on "Mysteries, Puzzles and Paradoxes in Quantum Mechanics"