Complementarity and additivity for depolarizing channels
Quantum Physics
2007-05-23 v1
Abstract
In this paper we use the method of a recent paper (quant-ph/0509101) to compute complementary channels for certain important cases, such as depolarizing and transpose-depolarizing channels. This method allows us to easily obtain the minimal Kraus representations from non--minimal ones. We also study the properties of the output purity of the tensor product of a channel and its complement.
Keywords
Cite
@article{arxiv.quant-ph/0510145,
title = {Complementarity and additivity for depolarizing channels},
author = {Nilanjana Datta and Alexander S. Holevo},
journal= {arXiv preprint arXiv:quant-ph/0510145},
year = {2007}
}
Comments
17 pages