Additivity for transpose depolarizing channels
Quantum Physics
2007-05-23 v1
Abstract
Additivity of the minimal output entropy for the family of transpose depolarizing channels introduced by Fannes et al. [quant-ph/0410195] is considered. It is shown that using the method of our previous paper [quant-ph/0403072] allows us to prove the additivity for the range of the parameter values for which the problem was left open in [quant-ph/0410195]. Together with the result of [quant-ph/0410195], this covers the whole family of transpose depolarizing channels.
Cite
@article{arxiv.quant-ph/0412034,
title = {Additivity for transpose depolarizing channels},
author = {Nilanjana Datta and Alexander S. Holevo and Yuri Suhov},
journal= {arXiv preprint arXiv:quant-ph/0412034},
year = {2007}
}
Comments
9 pages