Decoherence of quantum information of qubits by stochastic dephasing

被引：25

作者：

Ban, M

Kitajima, S

Shibata, F

机构：

[1] Hitachi Ltd, Adv Res Lab, Hatoyama, Saitama 3500395, Japan

[2] Japan Sci & Technol Agcy, CREST, Tokyo 1030028, Japan

[3] Ochanomizu Univ, Fac Sci, Dept Phys, Bunkyo Ku, Tokyo 1128610, Japan

来源：

PHYSICS LETTERS A | 2006年 / 349卷 / 06期

关键词：

dephasing; qubit; purity; entanglement; dense coding; teleportation;

D O I：

10.1016/j.physleta.2005.09.062

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Decoherence of purity, distinguishability and entanglement of qubit states is investigated under the influence of stochastic dephasing which obeys the Gauss-Markov process and the two-state jump Markov process. The quantum teleportation and quantum dense coding under the influence of stochastic dephasing are also discussed. (c) 2005 Elsevier B.V. All rights reserved.

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收藏

页码：415 / 421

页数：7

相关论文

共 31 条

[1] A MATHEMATICAL MODEL FOR THE NARROWING OF SPECTRAL LINES BY EXCHANGE OR MOTION [J].

ANDERSON, PW .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1954, 9 (03) :316-339

[2] Decoherence of quantum information in the non-Markovian qubit channel [J].

Ban, M ;

Kitajima, S ;

Shibata, F .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2005, 38 (32) :7161-7174

[3] Decoherence of entanglement in the Bloch channel [J].

Ban, M ;

Kitajima, S ;

Shibata, F .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 2005, 38 (19) :4235-4245

[4] 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

[5] 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

[6]

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

[7] Entanglement-assisted classical capacity of noisy quantum channels [J].

Bennett, CH ;

Shor, PW ;

Smolin, JA ;

Thapliyal, AV .

PHYSICAL REVIEW LETTERS, 1999, 83 (15) :3081-3084

[8]

BLOCH F, 1946, PHYS REV, V70, P460, DOI 10.1103/PhysRev.70.460

[9] DYNAMICAL THEORY OF NUCLEAR INDUCTION .2. [J].

BLOCH, F .

PHYSICAL REVIEW, 1956, 102 (01) :104-135

[10]

BRAUNSTEIN SL, 2003, QUANTUM INFORMATION

← 1 2 3 4 →