Distinguishability of hyperentangled Bell states by linear evolution and local projective measurement

被引：38

作者：

Pisenti, N. ^{[1
]}

Gaebler, C. P. E. ^{[1
]}

Lynn, T. W. ^{[1
]}

机构：

[1] Harvey Mudd Coll, Dept Phys, Claremont, CA 91711 USA

来源：

PHYSICAL REVIEW A | 2011年 / 84卷 / 02期

关键词：

QUANTUM; PHOTONS;

D O I：

10.1103/PhysRevA.84.022340

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Measuring an entangled state of two particles is crucial to many quantum communication protocols. Yet Bell-state distinguishability using a finite apparatus obeying linear evolution and local measurement is theoretically limited. We extend known bounds for Bell-state distinguishability in one and two variables to the general case of entanglement in n two-state variables. We show that at most 2(n+1) - 1 classes out of 4(n) hyper-Bell states can be distinguished with one copy of the input state. With two copies, complete distinguishability is possible. We present optimal schemes in each case.

引用

页数：5

共 23 条

[1] Generation of hyperentangled photon pairs
Barreiro, JT
Langford, NK
Peters, NA
Kwiat, PG
[J]. PHYSICAL REVIEW LETTERS, 2005, 95 (26)
[2] Beating the channel capacity limit for linear photonic superdense coding
Barreiro, Julio T.
Wei, Tzu-Chieh
Kwiat, Paul G.
[J]. NATURE PHYSICS, 2008, 4 (04) : 282 - 286
[3] COMMUNICATION VIA ONE-PARTICLE AND 2-PARTICLE OPERATORS ON EINSTEIN-PODOLSKY-ROSEN STATES
BENNETT, CH
WIESNER, SJ
[J]. PHYSICAL REVIEW LETTERS, 1992, 69 (20) : 2881 - 2884
[4] TELEPORTING AN UNKNOWN QUANTUM STATE VIA DUAL CLASSICAL AND EINSTEIN-PODOLSKY-ROSEN CHANNELS
BENNETT, CH
BRASSARD, G
CREPEAU, C
JOZSA, R
PERES, A
WOOTTERS, WK
[J]. PHYSICAL REVIEW LETTERS, 1993, 70 (13) : 1895 - 1899
[5] Experimental quantum teleportation
Bouwmeester, D
Pan, JW
Mattle, K
Eibl, M
Weinfurter, H
Zeilinger, A
[J]. NATURE, 1997, 390 (6660) : 575 - 579
[6] MEASUREMENT OF THE BELL OPERATOR AND QUANTUM TELEPORTATION
BRAUNSTEIN, SL
MANN, A
[J]. PHYSICAL REVIEW A, 1995, 51 (03): : R1727 - R1730
[7] Quantum repeaters:: The role of imperfect local operations in quantum communication
Briegel, HJ
Dür, W
Cirac, JI
Zoller, P
[J]. PHYSICAL REVIEW LETTERS, 1998, 81 (26) : 5932 - 5935
[8] Generalized measurements by linear elements
Calsamiglia, J
[J]. PHYSICAL REVIEW A, 2002, 65 (03): : 4
[9] The role of auxiliary photons in state discrimination with linear optical devices
Carollo, A
Palma, GM
[J]. JOURNAL OF MODERN OPTICS, 2002, 49 (07) : 1147 - 1155
[10] Linear optical implementation of nonlocal product states and their indistinguishability
Carollo, A
Palma, GM
Simon, C
Zeilinger, A
[J]. PHYSICAL REVIEW A, 2001, 64 (02): : 22318/1 - 22318/8

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