The generalized partial transposition criterion for separability of multipartite quantum states

被引：104
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
收藏
页码：14 / 20
页数：7
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