Distillability via protocols respecting the positivity of partial transpose

被引：51

作者：

Eggeling, T ^{[1
]}

Vollbrecht, KGH ^{[1
]}

Werner, RF ^{[1
]}

Wolf, MM ^{[1
]}

机构：

[1] Tech Univ Carolo Wilhelmina Braunschweig, Inst Math Phys, D-38106 Braunschweig, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 25期

关键词：

D O I：

10.1103/PhysRevLett.87.257902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We show that all quantum states that do not have a positive partial transpose are distillable via channels, which preserve the positivity of the partial transpose. The question whether bound entangled states with nonpositive partial transpose exist is therefore closely related to the connection between the set of separable superoperators and positive partial transpose-preserving maps.

引用

页码：257902 / 1

页数：3

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