Multiphoton entanglement concentration and quantum cryptography

被引：63

作者：

Durkin, GA ^{[1
]}

Simon, C

Bouwmeester, D

机构：

[1] Univ Oxford, Ctr Quantum Computat, Oxford OX1 3PU, England

[2] Univ Calif Santa Barbara, Dept Phys, Ctr Spintron & Quantum Computat, Santa Barbara, CA 93106 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 88卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.88.187902

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Multiphoton states from parametric down-conversion can be entangled both in polarization and photon number. Maximal high-dimensional entanglement can be concentrated postselectively from these states via photon counting. This makes them natural candidates for quantum key distribution, where the presence of more than one photon per detection interval has up to now been considered undesirable. We propose a simple multiphoton cryptography protocol for the case of low losses.

引用

页数：4

共 19 条

[1]

Bennett C. H., 1984, PROC IEEE INT C COMP, P175, DOI [DOI 10.1016/J.TCS.2014.05.025, 10.1016/j.tcs.2014.05.025]

[2] Generalized privacy amplification [J].

Bennett, CH ;

Brassard, G ;

Crepeau, C ;

Maurer, UM .

IEEE TRANSACTIONS ON INFORMATION THEORY, 1995, 41 (06) :1915-1923

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

Bennett, CH ;

Bernstein, HJ ;

Popescu, S ;

Schumacher, B .

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

[4] Experimental quantum teleportation [J].

Bouwmeester, D ;

Pan, JW ;

Mattle, K ;

Eibl, M ;

Weinfurter, H ;

Zeilinger, A .

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

[5]

BOUWMEESTER D, 2000, PHYSICS QUANTUM INFO

[6]

BPOUWMEESTER D, 2001, PHYS REV A, V63

[7]

Cover T., 1991, ELEMENTS INFORM THEO, P20

[8] Single-mode photonic band gap guidance of light in air [J].

Cregan, RF ;

Mangan, BJ ;

Knight, JC ;

Birks, TA ;

Russell, PS ;

Roberts, PJ ;

Allan, DC .

SCIENCE, 1999, 285 (5433) :1537-1539

[9]

DRUMMOND PD, 1983, PHYS REV LETT, V50, P407

[10] Entanglement purification of Gaussian continuous variable quantum states [J].

Duan, LM ;

Giedke, G ;

Cirac, JI ;

Zoller, P .

PHYSICAL REVIEW LETTERS, 2000, 84 (17) :4002-4005

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