更强能力与更低噪声量子信道的私密容量与量子容量
量子物理
2012-01-26 v3 信息论
math.IT
摘要
引入了两类新的量子信道，我们称之为更强能力（more capable）和更低噪声（less noisy）。更强能力类由那些环境互补信道量子容量为零的信道组成；更低噪声类由那些环境互补信道私密容量为零的信道组成。对于更强能力类，阐明了私密容量与量子容量相等。对于更低噪声类，阐明了私密容量与量子容量可被单字母表征。
引用
@article{arxiv.1110.5746,
title = {Private and Quantum Capacities of More Capable and Less Noisy Quantum Channels},
author = {Shun Watanabe},
journal= {arXiv preprint arXiv:1110.5746},
year = {2012}
}
备注
6 pages, 1 figure, In v2, fig 1 is modified because fig 1 in v1 incorrectly stated that the degradable class is included in the conjugate degradable class. Main results are unchanged. V3 is the published version. In v3, the title is changed by a suggestion from an editor