Witnessed entanglement

被引:30
作者
Brandao, Fernando G. S. L. [1 ]
Vianna, Reinaldo O. [1 ]
机构
[1] Univ Fed Minas Gerais, Dept Fis, BR-30123970 Belo Horizonte, MG, Brazil
关键词
entanglement; multipartite quantum system;
D O I
10.1142/S0219749906001803
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
We present a new measure of entanglement for mixed states. It can be approximately computable for every state and can be used to quantify all different types of multipartite entanglement. We show that it satisfies the usual properties of a good entanglement quantifier and derive relations between it and other entanglement measures.
引用
收藏
页码:331 / 340
页数:10
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