Practical scheme for entanglement concentration

被引：237

作者：

Zhao, Z ^{[1
]}

Pan, JW

Zhan, MS

机构：

[1] Chinese Acad Sci, State Key Lab Magent Resonance & Atom & Mol Phys, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China

[2] Univ Sci & Technol China, Dept Modern Phys, Hefei 230027, Peoples R China

来源：

PHYSICAL REVIEW A | 2001年 / 64卷 / 01期

关键词：

D O I：

10.1103/PhysRevA.64.014301

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a realistic purification scheme for pure nonmaximally entangled states. In the scheme, two distant parties Alice and Bob first start with two shared but less entangled photon pairs to produce a conditional four-photon Greenberger-Horne-Zeilinger state, and then perform a 45 degrees polarization measurement onto one of the two photons at each location such that the remaining two photons are projected onto a maximally entangled state.

引用

页码：143011 / 143013

页数：3

共 28 条

[1] Optimal distillation of a Greenberger-Horne-Zeilinger state [J].

Acín, A ;

Jané, E ;

Dür, W ;

Vidal, G .

PHYSICAL REVIEW LETTERS, 2000, 85 (22) :4811-4814

[2] COMMUNICATION VIA ONE-PARTICLE AND 2-PARTICLE OPERATORS ON EINSTEIN-PODOLSKY-ROSEN STATES [J].

BENNETT, CH ;

WIESNER, SJ .

PHYSICAL REVIEW LETTERS, 1992, 69 (20) :2881-2884

[3] 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

[4] Quantum information and computation [J].

Bennett, CH ;

DiVincenzo, DP .

NATURE, 2000, 404 (6775) :247-255

[5] 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

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

Bennett, CH ;

Bernstein, HJ ;

Popescu, S ;

Schumacher, B .

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

[7] Purification via entanglement swapping and conserved entanglement [J].

Bose, S ;

Vedral, V ;

Knight, PL .

PHYSICAL REVIEW A, 1999, 60 (01) :194-197

[8] Experimental quantum teleportation [J].

Bouwmeester, D ;

Pan, JW ;

Mattle, K ;

Eibl, M ;

Weinfurter, H ;

Zeilinger, A .

NATURE, 1997, 390 (6660) :575-579

[9] Observation of three-photon Greenberger-Horne-Zeilinger entanglement [J].

Bouwmeester, D ;

Pan, JW ;

Daniell, M ;

Weinfurter, H ;

Zeilinger, A .

PHYSICAL REVIEW LETTERS, 1999, 82 (07) :1345-1349

[10] Quantum repeaters:: The role of imperfect local operations in quantum communication [J].

Briegel, HJ ;

Dür, W ;

Cirac, JI ;

Zoller, P .

PHYSICAL REVIEW LETTERS, 1998, 81 (26) :5932-5935

← 1 2 3 →