Strong Superadditive Deficit of Coherence and Quantum Correlations Distribution

刘思远; 吴风霖; 张耀中; 范桁

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Strong Superadditive Deficit of Coherence and Quantum Correlations Distribution

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The definitions of strong superadditive deficit for relative entropy coherence and monogamy deficit of measurement-dependent global quantum discord are proposed.The equivalence between them is proved,which provides a useful criterion for the validity of the strong superadditive inequality of relative entropy coherence.In addition,the strong superadditive deficit of rela.tive entropy coherence is proved to be greater than or equal to zero under the condition that bipartite measurement-dependent global quantum discord(GQD)does not increase under the discarding of subsystems.Using the Monte Carlo method,it is shown that both the strong superadditive inequality of relative entropy coherence and the monogamy inequality of measurement-dependent GQD are established under general circumstances.The bipartite measurement-dependent GQD does not increase under the discarding of subsystems.The multipartite situation is also discussed in detail.

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《中国物理快报：英文版》 |2019年第8期|14-18|共5页
作者
刘思远; 吴风霖; 张耀中; 范桁;
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作者单位

Institute of Physics;

Chinese Academy of Sciences;

Beijing100190;

Institute of Modern Physics;

Northwest University;

Xi’an710127;

Shaanxi Key Laboratory for Theoretical Physics Frontiers;

Xi’an710127;

School of Mathematics and Physics;

The University of Queensland;

Brisbane4072;

Australia;

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原文格式 PDF
正文语种 chi
中图分类量子论;
关键词
Deficit; Coherence; Quantum;

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Strong Superadditive Deficit of Coherence and Quantum Correlations Distribution

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