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Entanglement dynamics of two-qubit systems in different quantum noises |
Pan Chang-Ning(潘长宁)a)†,Li-Fei(李飞)b), Fang Jian-Shu(方见树)a),and Fang Mao-Fa(方卯发)c) |
a School of Science, Hunan University of Technology, Zhuzhou 412008, China; b Department of Physics, Hunan University of Science and Technology, Xiangtan 411201, China; c College of Physics and Information Science, Hunan Normal University, Changsha 410081, China |
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Abstract The entanglement dynamics of two-qubit systems in different quantum noises are investigated by means of the operator-sum representation method. We find that, except for the amplitude damping and phase damping quantum noise, the sudden death of entanglement is always observed in different two-qubit systems with generalized amplitude damping and depolarizing quantum noise.
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Received: 05 August 2010
Revised: 18 August 2010
Accepted manuscript online:
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PACS:
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03.65.Ud
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(Entanglement and quantum nonlocality)
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42.50.Lc
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(Quantum fluctuations, quantum noise, and quantum jumps)
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Fund: Project supported by the Natural Science Foundation of Hunan Province of China (Grant No. 10JJ3088), the Key Research Foundation of the Education Bureau of Hunan Province of China (Grant No. 08A015), and the Funds of the Hunan Education Bureau of China (Grant Nos. 10C0616 and 08C344). |
Cite this article:
Pan Chang-Ning(潘长宁), Li-Fei(李飞), Fang Jian-Shu(方见树), and Fang Mao-Fa(方卯发) Entanglement dynamics of two-qubit systems in different quantum noises 2011 Chin. Phys. B 20 020304
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[1] |
Werlang T, Souza S, Fanchini F F and Villas Boas C J 2009 Phys. Rev. A 80 024103
|
[2] |
Ikram M, Fu L L and Zubairy M S 2007 Phys. Rev. A 75 062336
|
[3] |
Wu Y 2001 Phys. Rev. A 63 052303
|
[4] |
Wu Y and Yang X 1997 Phys. Rev. Lett. 78 3086
|
[5] |
Ye L and Guo G C 2004 Phys. Rev. A 70 054303
|
[6] |
Pan C N and Fang M F 2006 Chin. Phys. 15 1225
|
[7] |
Ekert A K 1991 Phys. Rev. Lett. 67 661
|
[8] |
Lu H, Chen A X and Yan X D 2007 Chin. Phys. 16 2862
|
[9] |
Bennett C H and Wiesner S J 1992 Phys. Rev. Lett. 69 2881
|
[10] |
Pan C N and Fang M F 2008 Chin. Phys. B 17 34
|
[11] |
Yu T and Eberly J H 2004 Phys. Rev. Lett. 93 140404
|
[12] |
Yu T and Eberly J H 2006 Phys. Rev. Lett. 97 140403
|
[13] |
Yu T and Eberly J H 2007 Quantum Inform. Comput. 7 459
|
[14] |
Liu R F and Chen C C 2006 Phys. Rev. A 74 024102
|
[15] |
Cui H P, Zou J, Li J G and Shao B 2007 J. Phys. B 40 S143
|
[16] |
Wootters W K 1998 Phys. Rev. Lett. 80 2245
|
[17] |
Nielsen M A and Chuang I L 2000 Quantum Computation and Quantum Information (Cambridge: Cambridge University Press)
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