Minimum output entropy of bosonic channels: a conjecture
Quantum Physics
2009-11-10 v1
Abstract
The von Neumann entropy at the output of a bosonic channel with thermal noise is analyzed. Coherent-state inputs are conjectured to minimize this output entropy. Physical and mathematical evidence in support of the conjecture is provided. A stronger conjecture--that output states resulting from coherent-state inputs majorize the output states from other inputs--is also discussed.
Keywords
Cite
@article{arxiv.quant-ph/0404005,
title = {Minimum output entropy of bosonic channels: a conjecture},
author = {Vittorio Giovannetti and Saikat Guha and Seth Lloyd and Lorenzo Maccone and Jeffrey H. Shapiro},
journal= {arXiv preprint arXiv:quant-ph/0404005},
year = {2009}
}
Comments
15 pages, 12 figures