The complementarity relations of quantum coherence in quantum information processing

被引：16

作者：

Pan, Fei ^{[1
]}

Qiu, Liang ^{[1
]}

Liu, Zhi ^{[1
]}

机构：

[1] China Univ Min & Technol, Sch Phys, Xuzhou 221116, Peoples R China

来源：

SCIENTIFIC REPORTS | 2017年 / 7卷

基金：

中国国家自然科学基金;

关键词：

STATE;

D O I：

10.1038/srep43919

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

We establish two complementarity relations for the relative entropy of coherence in quantum information processing, i.e., quantum dense coding and teleportation. We first give an uncertainty-like expression relating local quantum coherence to the capacity of optimal dense coding for bipartite system. The relation can also be applied to the case of dense coding by using unital memoryless noisy quantum channels. Further, the relation between local quantum coherence and teleportation fidelity for two-qubit system is given.

引用

页数：8

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