The entanglement purification for entangled multi-particle states

被引：3

作者：

Ye, L ^{[1
]}

Yao, CM

Guo, GC

机构：

[1] Univ Sci & Technol China, Chinese Acad Sci, Key Lab Quantum Informat, Hefei 230026, Peoples R China

[2] Anhui Univ, Dept Phys, Hefei 230039, Peoples R China

来源：

JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS | 2002年 / 4卷 / 03期

关键词：

purification; POVM; entangled state;

D O I：

10.1088/1464-4266/4/3/308

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present two purification schemes for nonmaximally entangled states. We first show that two parties, Alice and Bob, start with shared less-entangled three-particle states to probabilistically produce a three-particle Greenberger-Horne-Zeilinger state by Bell state measurements and positve operator valued measure (POVM) or a unitary transformation. Then, by a straightforward generalization of the schemes, the purification of a multi-particle entangled state can be realized.

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收藏

页码：215 / 217

页数：3

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