Logic-qubit controlled-NOT gate of decoherence-free subspace with nonlinear quantum optics

被引：17

作者：

Li, Chun-Yan ^{[1
]}

Zhang, Zu-Rong ^{[1
]}

Sun, Shi-Hai ^{[1
]}

Jiang, Mu-Sheng ^{[1
]}

Liang, Lin-Mei ^{[1
,2
]}

机构：

[1] Natl Univ Def Technol, Dept Phys, Changsha 410073, Hunan, Peoples R China

[2] Natl Univ Def Technol, State Key Lab High Performance Comp, Changsha 410073, Hunan, Peoples R China

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2013年 / 30卷 / 07期

基金：

中国国家自然科学基金;

关键词：

ENTANGLEMENT CONCENTRATION; COMPUTATION; STATES; COMMUNICATION; PURIFICATION;

D O I：

10.1364/JOSAB.30.001872

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The implementation of an optical system universal logic-qubit controlled-NOT gate of decoherence-free subspaces (DFSs) using the cross-Kerr nonlinearity effect is discussed. Both the control qubit and the target qubit contain two photons, the states of which are DFSs of collective-rotating noise or collective-dephasing noise. A three-qubit parity-check circuit, which is the most important unit of the quantum gate, is proposed first, and only one ancillary photon is needed in our scheme. A single-photon source, linear optical apparatus, and quantum nondemolition detector are used to perform the process. Its efficiency may approach 100% with a feed-forward process. The experimental feasibility of the strategy with current technology is also considered. (C) 2013 Optical Society of America

引用

页码：1872 / 1877

页数：6

共 48 条

[1] ELEMENTARY GATES FOR QUANTUM COMPUTATION [J].

BARENCO, A ;

BENNETT, CH ;

CLEVE, R ;

DIVINCENZO, DP ;

MARGOLUS, N ;

SHOR, P ;

SLEATOR, T ;

SMOLIN, JA ;

WEINFURTER, H .

PHYSICAL REVIEW A, 1995, 52 (05) :3457-3467

[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] QUANTUM CRYPTOGRAPHY USING ANY 2 NONORTHOGONAL STATES [J].

BENNETT, CH .

PHYSICAL REVIEW LETTERS, 1992, 68 (21) :3121-3124

[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] Robust polarization-based quantum key distribution over a collective-noise channel [J].

Boileau, JC ;

Gottesman, D ;

Laflamme, R ;

Poulin, D ;

Spekkens, RW .

PHYSICAL REVIEW LETTERS, 2004, 92 (01) :4

[6]

Chuang I. N., 2000, Quantum Computation and Quantum Information

[7] All-optical-fiber polarization-based quantum logic gate [J].

Clark, Alex S. ;

Fulconis, Jeremie ;

Rarity, John G. ;

Wadsworth, William J. ;

O'Brien, Jeremy L. .

PHYSICAL REVIEW A, 2009, 79 (03)

[8] Controlled order rearrangement encryption for quantum key distribution [J].

Deng, FG ;

Long, GL .

PHYSICAL REVIEW A, 2003, 68 (04) :4

[9] Two-step quantum direct communication protocol using the Einstein-Podolsky-Rosen pair block [J].

Deng, FG ;

Long, GL ;

Liu, XS .

PHYSICAL REVIEW A, 2003, 68 (04) :6

[10] Optimal nonlocal multipartite entanglement concentration based on projection measurements [J].

Deng, Fu-Guo .

PHYSICAL REVIEW A, 2012, 85 (02)

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