Separability and entanglement of composite quantum systems

被引：192

作者：

Lewenstein, M ^{[1
]}

Sanpera, A ^{[1
]}

机构：

[1] Ctr Etud Saclay, SPAM, DRECAM, DSM,CEA, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.80.2261

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We provide a constructive algorithm to find the best separable approximation to an arbitrary density matrix of a composite quantum system of finite dimensions. The method leads to a condition of separability and to a measure of entanglement.

引用

页码：2261 / 2264

页数：4

共 15 条

[1]

Bell JS, 1964, Physics, V1, P195, DOI [10.1103/Physics-PhysiqueFizika.1.195, DOI 10.1103/PHYSICSPHYSIQUEFIZIKA.1.195]

[2] TELEPORTING AN UNKNOWN QUANTUM STATE VIA DUAL CLASSICAL AND EINSTEIN-PODOLSKY-ROSEN CHANNELS [J].

BENNETT, CH ;

BRASSARD, G ;

CREPEAU, C ;

JOZSA, R ;

PERES, A ;

WOOTTERS, WK .

PHYSICAL REVIEW LETTERS, 1993, 70 (13) :1895-1899

[3]

Bennett CH, 1996, PHYS REV A, V54, P3824, DOI 10.1103/PhysRevA.54.3824

[4] Purification of noisy entanglement and faithful teleportation via noisy channels [J].

Bennett, CH ;

Brassard, G ;

Popescu, S ;

Schumacher, B ;

Smolin, JA ;

Wootters, WK .

PHYSICAL REVIEW LETTERS, 1996, 76 (05) :722-725

[5] Can quantum-mechanical description of physical reality be considered complete? [J].

Einstein, A ;

Podolsky, B ;

Rosen, N .

PHYSICAL REVIEW, 1935, 47 (10) :0777-0780

[6] Separability of mixed states: Necessary and sufficient conditions [J].

Horodecki, M ;

Horodecki, P ;

Horodecki, R .

PHYSICS LETTERS A, 1996, 223 (1-2) :1-8

[7] Separability criterion and inseparable mixed states with positive partial transposition [J].

Horodecki, P .

PHYSICS LETTERS A, 1997, 232 (05) :333-339

[8] Information-theoretic aspects of inseparability of mixed states [J].

Horodecki, R ;

Horodecki, M .

PHYSICAL REVIEW A, 1996, 54 (03) :1838-1843

[9] Separability criterion for density matrices [J].

Peres, A .

PHYSICAL REVIEW LETTERS, 1996, 77 (08) :1413-1415

[10] BELL INEQUALITIES VERSUS TELEPORTATION - WHAT IS NONLOCALITY [J].

POPESCU, S .

PHYSICAL REVIEW LETTERS, 1994, 72 (06) :797-799

← 1 2 →