Entanglement-assisted local manipulation of pure quantum states

被引：278

作者：

Jonathan, D ^{[1
]}

Plenio, MB ^{[1
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 17期

关键词：

D O I：

10.1103/PhysRevLett.83.3566

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate that local transformations on a composite quantum system can be enhanced in the presence uf certain entangled states. These extra states act much like catalysts in a chemical reaction: they allow otherwise impossible local transformations to be realized, without being consumed in any way. In particular, we show that this effect can considerably improve thr efficiency of entanglement concentration procedures for finite states.

引用

页码：3566 / 3569

页数：4

共 18 条

[1]

Bennett C. H., QUANTPH9908073

[2]

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

[3] 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

[4] Concentrating partial entanglement by local operations [J].

Bennett, CH ;

Bernstein, HJ ;

Popescu, S ;

Schumacher, B .

PHYSICAL REVIEW A, 1996, 53 (04) :2046-2052

[5] Quantum privacy amplification and the security of quantum cryptography over noisy channels [J].

Deutsch, D ;

Ekert, A ;

Jozsa, R ;

Macchiavello, C ;

Popescu, S ;

Sanpera, A .

PHYSICAL REVIEW LETTERS, 1996, 77 (13) :2818-2821

[6] Method of areas for manipulating the entanglement properties of one copy of a two-particle pure entangled state [J].

Hardy, L .

PHYSICAL REVIEW A, 1999, 60 (03) :1912-1923

[7] Bound entanglement can be activated [J].

Horodecki, P ;

Horodecki, M ;

Horodecki, R .

PHYSICAL REVIEW LETTERS, 1999, 82 (05) :1056-1059

[8] Minimal conditions for local pure-state entanglement manipulation [J].

Jonathan, D ;

Plenio, MB .

PHYSICAL REVIEW LETTERS, 1999, 83 (07) :1455-1458

[9]

Marshall A. W., 1979, INEQUALITIES THEORY

[10] Conditions for a class of entanglement transformations [J].

Nielsen, MA .

PHYSICAL REVIEW LETTERS, 1999, 83 (02) :436-439

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