Minimum Renyi and Wehrl entropies at the output of bosonic channels
Quantum Physics
2009-11-10 v2
Abstract
The minimum Renyi and Wehrl output entropies are found for bosonic channels in which the signal photons are either randomly displaced by a Gaussian distribution (classical-noise channel), or in which they are coupled to a thermal environment through lossy propagation (thermal-noise channel). It is shown that the Renyi output entropies of integer orders z>1 and the output Wehrl entropy are minimized when the channel input is a coherent state.
Keywords
Cite
@article{arxiv.quant-ph/0404037,
title = {Minimum Renyi and Wehrl entropies at the output of bosonic channels},
author = {Vittorio Giovannetti and Seth Lloyd and Lorenzo Maccone and Jeffrey H. Shapiro and Brent J. Yen},
journal= {arXiv preprint arXiv:quant-ph/0404037},
year = {2009}
}
Comments
Minimal revision. Accepted for publication on Phys. Rev. A