Positive maps that are not completely positive
文献类型：期刊论文
| 作者 | Yu, SX; Yu, SX , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| 刊名 | PHYSICAL REVIEW A
 |
| 出版日期 | 2000 |
| 卷号 | 62期号:2页码:- |
| 关键词 | Separability Criterion Reduction Criterion Bound Entanglement Mixed States Distillation Channels |
| ISSN号 | 1050-2947 |
| 英文摘要 | 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. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000088683400117 |
| 公开日期 | 2012-08-29 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/12929]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 通讯作者 | Yu, SX , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. |
| 推荐引用方式 GB/T 7714 | 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):-. |
入库方式： OAI收割
来源：理论物理研究所
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