期刊
QUANTUM INFORMATION PROCESSING
卷 17, 期 7, 页码 -出版社
SPRINGER
DOI: 10.1007/s11128-018-1928-4
关键词
Coherence generating power; Unitary transformations; Probabilistic average
资金
- Zhejiang Provincial Natural Science Foundation of China [LY17A010027]
- NSFC [11301124, 61771174, 11275131, 11571313, 11675113]
- cross-disciplinary innovation team building project of Hangzhou Dianzi University
We study the ability of a quantum channel to generate quantum coherence when it applies to incoherent states. Based on probabilistic averages, we define a measure of such coherence generating power (CGP) for a generic quantum channel, based on the average coherence generated by the quantum channel acting on a uniform ensemble of incoherent states. Explicit analytical formula of the CGP for any unitary channels are presented in terms of subentropy. An upper bound for CGP of unital quantum channels has been also derived. Detailed examples are investigated.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据