Coherence of quantum channels

被引：29

作者：

Xu, Jianwei ^{[1
]}

机构：

[1] Northwest A&F Univ, Coll Sci, Yangling 712100, Shaanxi, Peoples R China

来源：

PHYSICAL REVIEW A | 2019年 / 100卷 / 05期

关键词：

POWER;

D O I：

10.1103/PhysRevA.100.052311

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We investigate the coherence of quantum channels and establish a resource theory for quantifying the coherence of quantum channels. To this aim, we define the incoherent channels and incoherent superchannels. This theory recovers the case of quantum states when we view quantum states as a special case of quantum channels and also allows some analytical expressions for coherence measures.

引用

页数：8

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