Distribution and monogamy of quantum coherence for open three-qubit systems under local noisy channels

被引：1

作者：

Liao, Ming-Jie ^{[1
,2
]}

Zeng, Hao-Sheng ^{[1
,2
]}

机构：

[1] Hunan Normal Univ, Synerget Innovat Ctr Quantum Effects & Applicat, Key Lab Low Dimens Quantum Struct & Quantum Contr, Minist Educ, Changsha 410081, Peoples R China

[2] Hunan Normal Univ, Dept Phys, Changsha 410081, Peoples R China

来源：

LASER PHYSICS LETTERS | 2021年 / 18卷 / 04期

基金：

中国国家自然科学基金;

关键词：

quantum coherence; monogamy; quantum channel; three-qubit system;

D O I：

10.1088/1612-202X/abe304

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the distribution and monogamous relations of quantum coherence for three-qubit systems under the influence of local amplitude-damping, phase-damping and random unitary channels, respectively. We find that under the influence of the considered channels, the W state has both global and bipartite coherence, and its monogamy is always equal to zero. For the Greenberger-Horne-Zeilinger) state, however, there is only global coherence in the time evolution and the monogamy is always positive. We also present a partially entangled state, vertical bar psi >, which has global, bipartite, and monomeric coherences and negative monogamy during the whole time evolution.

引用

页数：11

共 40 条

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