On the structure of entanglement witnesses and new class of positive indecomposable maps

被引：72
作者：
Chruscinski, Dariusz [1 ]
Kossakowski, Andrzej [1 ]
机构：
[1] Nicholas Copernicus Univ, Inst Phys, PL-87100 Torun, Poland
来源：
OPEN SYSTEMS & INFORMATION DYNAMICS | 2007年 / 14卷 / 03期
关键词：
D O I：
10.1007/s11080-007-9052-4
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
We construct a new class of positive indecomposable maps in the algebra of d x d complex matrices. Each map is uniquely characterized by a cyclic bistochastic matrix. This class generalizes Choi map for d = 3. It provides a new reach family of indecomposable entanglement witnesses which define important tool for investigating quantum entanglement.
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页码：275 / 294
页数：20
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