Optimal entanglement witnesses from generalized reduction and Robertson maps

被引：24

作者：

Chruscinski, Dariusz ^{[1
]}

Pytel, Justyna ^{[1
]}

机构：

[1] Nicolaus Copernicus Univ, Inst Phys, PL-87100 Torun, Poland

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL | 2011年 / 44卷 / 16期

关键词：

D O I：

10.1088/1751-8113/44/16/165304

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We provide a generalization of the reduction and Robertson positive maps in matrix algebras. They give rise to a new class of optimal entanglement witnesses. Their structural physical approximation is analyzed. As a byproduct we provide new examples of PPT (positive partial transpose) entangled states.

引用

页数：15

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