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Positive maps that are not completely positive
Yu, SX; Yu, SX , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
2000
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号62期号:2页码:-
摘要The concept of the half density matrix is proposed. It unifies the quantum states that are described by density matrices and physical processes that are described by completely positive maps. With the help of the half-density-matrix representation of the Hermitian linear map, we show that every positive map that is not completely positive is a difference of two completely positive maps. A necessary and sufficient condition for a positive map that is not completely positive is also presented, which is illustrated by some examples.
部门归属Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Separability Criterion Reduction Criterion Bound Entanglement Mixed States Distillation Channels
学科领域Physics
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收录类别SCI
WOS记录号WOS:000088683400117
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被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/12929
专题理论物理所SCI论文
通讯作者Yu, SX , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
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Yu, SX,Yu, SX , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.. Positive maps that are not completely positive[J]. PHYSICAL REVIEW A,2000,62(2):-.
APA Yu, SX,&Yu, SX , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China..(2000).Positive maps that are not completely positive.PHYSICAL REVIEW A,62(2),-.
MLA Yu, SX,et al."Positive maps that are not completely positive".PHYSICAL REVIEW A 62.2(2000):-.
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