| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Quantum Entropy Controlling in the Damping Jaynes-Cummings Model |
| JIA Fei, XIE Shuang-Yuan, YANG Ya-Ping |
| Department of Physics, Tongji University, Shanghai 200092 |
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| Cite this article: |
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JIA Fei, XIE Shuang-Yuan, YANG Ya-Ping 2010 Chin. Phys. Lett. 27 014212 |
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Abstract The quantum entropy of the damping Jaynes-Cummings model is investigated in different decay coefficients under detuning conditions. The results indicate that the larger the decay coefficient is, the more quickly the entropy decays. The detuning of the atom and field frequencies reduce the entanglement maximum in short time regions, but delays the damping process of the entanglement. The sine modulation enhances the entanglement in short time regions.
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| Keywords:
42.50.Dv
32.80.Bx
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Received: 28 May 2009
Published: 30 December 2009
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[1] Nielsen M A and Chuang I L 2000 Quantum Computationand Quantum Information (Cambridge: Cambridge University)
[2] Ashkin A 1978 Phys. Rev. Lett. 40 729 Meekhof D M, Monroe C and King B E et al 1996 Phys. Rev.Lett. 76 1796
[3] Li F L and Gao S Y 2000 Phys. Rev. A 62 043809 Mario D C, Macovei M and Chistoph H K 2006 Opt. Commun. 264 407
[4] Law C K, Zhu S Y and Zubairy M S 1995 Phys. Rev. A 52 4095 Janowicz M 1998 Phys. Rev. A 57 4784
[5] Abdalla M S, Abdel-Aty M and Obada A S F 2003 Physica A 326 203
[6] Olaya-Castro A, Johnson N F and Quiroga L 2004 Phys.Rev. A 70 020301
[7] Yang Y P, Xu J P, Li G X and Chen H 2004 Phys. Rev. A 69 053406
[8] Scully M O and Zubairy M S 1997 Quantum Optics(Cambridge: Cambridge University) pp 136 195
[9] Phoenix S J D and Knight P L 1988 Ann. Phys. (N. Y.) 186 381 Phoenix S J D and Knight P L 1991 Phys. Rev. A 446023
[10] Bose S, Fuentes-Guridi I, Knight P L and Vedral V 2001 Phys. Rev. Lett. 87 050401 Yu T and Eberly J H 2004 Phys. Rev. Lett. 93140404 Yang Q, Yang M and Cao Z L 2009 Chin. Phys. Lett. 26 040302 |
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