Local transformation of mixed states of two qubits to Bell diagonal states
文献类型：期刊论文
| 作者 | Cen LX ; Wu NJ ; Yang FH ; An JH |
| 刊名 | physical review a
 |
| 出版日期 | 2002 |
| 卷号 | 65期号:5页码:art.no.052318 |
| 关键词 | 2 QUBITS ENTANGLEMENT MANIPULATION NOISY ENTANGLEMENT ARBITRARY STATE INFORMATION OPERATIONS |
| ISSN号 | 1050-2947 |
| 通讯作者 | cen lx,chinese acad sci,inst semicond,nlsm,beijing 100083,peoples r china. |
| 中文摘要 | the optimal entanglement manipulation for a single copy of mixed states of two qubits is to transform it to a bell diagonal state. in this paper we derive an explicit form of the local operation that can realize such a transformation. the result obtained is universal for arbitrary entangled two-qubit states and it discloses that the corresponding local filter is not unique for density matrices with rank n = 2 and can be exclusively determined for that with n = 3 and 4. as illustrations, a four-parameter family of mixed states are explored, the local filter as well as the transformation probability are given explicitly, which verify the validity of the general result. |
| 学科主题 | 光电子学 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2010-08-12 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/11890]  |
| 专题 | 半导体研究所_中国科学院半导体研究所（2009年前） |
| 推荐引用方式 GB/T 7714 | Cen LX,Wu NJ,Yang FH,et al. Local transformation of mixed states of two qubits to Bell diagonal states[J]. physical review a,2002,65(5):art.no.052318. |
| APA | Cen LX,Wu NJ,Yang FH,&An JH.(2002).Local transformation of mixed states of two qubits to Bell diagonal states.physical review a,65(5),art.no.052318. |
| MLA | Cen LX,et al."Local transformation of mixed states of two qubits to Bell diagonal states".physical review a 65.5(2002):art.no.052318. |
入库方式： OAI收割
来源：半导体研究所
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