Entanglement criteria for all bipartite Gaussian states

被引：163

作者：

Giedke, G ^{[1
]}

Kraus, B

Lewenstein, M

Cirac, JI

机构：

[1] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria

[2] Leibniz Univ Hannover, Inst Theoret Phys, D-30163 Hannover, Germany

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.87.167904

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We provide a necessary and sufficient condition for separability of Gaussian states of bipartite systems of arbitrarily many modes. The condition provides an operational criterion since it can be checked by simple computation. Moreover, it allows us to find a pure product-state decomposition of any given separable Gaussian state. We also show that all bipartite Gaussian states with nonpositive partial transpose are distillable.

引用

页数：4

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