The generalized partial transposition criterion for separability of multipartite quantum states

被引：105

作者：

Chen, K ^{[1
]}

Wu, LA ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Phys, Lab Opt Phys, Beijing 100080, Peoples R China

来源：

PHYSICS LETTERS A | 2002年 / 306卷 / 01期

基金：

中国国家自然科学基金;

关键词：

separability; density matrix; multipartite quantum system; measure of entanglement;

D O I：

10.1016/S0375-9601(02)01538-4

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a generalized partial transposition separability criterion for the density matrix of a multipartite quantum system. This criterion comprises as special cases the famous Peres-Horodecki criterion and the recent realignment criterion in [O. Rudolph, quant-ph/0202121] and [K. Chen, L.A. Wu, quant-ph/0205017]. It involves only straightforward matrix manipulations and is easy to apply. A quantitative measure of entanglement based on this criterion is also obtained. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：14 / 20

页数：7

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