Mixed-state entanglement and distillation: Is there a "bound" entanglement in nature?

被引：944

作者：

Horodecki, M ^{[1
]}

Horodecki, P

Horodecki, R

机构：

[1] Univ Gdansk, Inst Theoret Phys & Astrophys, PL-80952 Gdansk, Poland

[2] Univ Gdansk, Fac Appl Phys & Math, PL-80952 Gdansk, Poland

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.80.5239

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

It is shown that if a mixed state can be distilled to the singlet form it must violate partial transposition criterion [A. Peres, Phys. Rev. Lett. 76, 1413 (1996)]. It implies that there are two qualitatively different types of entanglement: "free" entanglement which is distillable, and "bound" entanglement which cannot be brought to the singlet form useful for quantum communication purposes. A possible physical meaning of the result is discussed.

引用

页码：5239 / 5242

页数：4

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