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We consider a system consisting of a -type atom and a V-type atom, which are individually trapped in two spatially separated cavities that are connected by an optical fiber. The evolution of the state vector of the system is given. We investigate the temporal evolution in the entanglement between atoms and that between cavities. We discuss the influence of cavity-fiber coupling coefficient on entanglement. The results obtained by the numerical method show that the entanglement between atoms and the entanglement between cavities have the same evolution regularities. On the other hand, the entanglement between atoms and that between cavities are strengthened with the increase of cavity-fiber coupling coefficient.
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Keywords:
- quantum optics /
- atom-cavity-fiber compound system /
- three-level atom /
- quantum entanglement
[1] Zheng S B, Guo G C 2000 Phys. Rev. Lett. 85 2392
[2] Zheng S B 2001 Phys. Rev. Lett. 87 230404
[3] Vedral V, Plenio M B, Rippin M A, Knight P L 1997 Phys. Rev. Lett. 78 2275
[4] Wootters W K 1998 Phys. Rev. Lett. 80 2245
[5] Zhang Y J, Zhou Y, Xia Y J 2008 Acta Phys. Sin. 57 21 (in Chinese)[张英杰、周 原、夏云杰 2008 物理学报 57 21]
[6] Wu C, Fang M F 2010 Chin. Phys. 19 020309
[7] Chen L, Shao X Q, Zhang S 2009 Chin. Phys. 18 888
[8] Zhan Z M, Yang W X, Li J H 2004 Chin. Phys. Lett. 21 846
[9] Yang Z B 2007 Chin. Phys. 16 329
[10] Zhang J S, Xu J B 2009 Opt. Commun. 282 3652
[11] Ogden C D, Irish E K, Kim M S 2008 Phys. Rev. A 78 063805
[12] Hartmann M J, Brandao F G S L, Plenio M B 2007 Phys. Rev. Lett. 99 160501
[13] Zheng S B, Yang C P, Nori F 2010 Phys. Rev. A 82 042327
[14] Zheng S B 2010 Chin. Phys. 19 064204
[15] Yang Z B, Xia Y, Zheng S B 2010 Opt. Commun. 283 3052
[16] Yin Z Q, Li F L 2007 Phys. Rev. A 75 012324
[17] Zhang B 2010 Opt. Commun. 283 196
[18] Peng P, Li F L 2007 Phys. Rev. A 75 062320
[19] Zou Y 2009 Chin. J. Quantum Eelectron. 26 69 (in Chinese)[邹 艳 2009 量子电子学报 26 69]
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[1] Zheng S B, Guo G C 2000 Phys. Rev. Lett. 85 2392
[2] Zheng S B 2001 Phys. Rev. Lett. 87 230404
[3] Vedral V, Plenio M B, Rippin M A, Knight P L 1997 Phys. Rev. Lett. 78 2275
[4] Wootters W K 1998 Phys. Rev. Lett. 80 2245
[5] Zhang Y J, Zhou Y, Xia Y J 2008 Acta Phys. Sin. 57 21 (in Chinese)[张英杰、周 原、夏云杰 2008 物理学报 57 21]
[6] Wu C, Fang M F 2010 Chin. Phys. 19 020309
[7] Chen L, Shao X Q, Zhang S 2009 Chin. Phys. 18 888
[8] Zhan Z M, Yang W X, Li J H 2004 Chin. Phys. Lett. 21 846
[9] Yang Z B 2007 Chin. Phys. 16 329
[10] Zhang J S, Xu J B 2009 Opt. Commun. 282 3652
[11] Ogden C D, Irish E K, Kim M S 2008 Phys. Rev. A 78 063805
[12] Hartmann M J, Brandao F G S L, Plenio M B 2007 Phys. Rev. Lett. 99 160501
[13] Zheng S B, Yang C P, Nori F 2010 Phys. Rev. A 82 042327
[14] Zheng S B 2010 Chin. Phys. 19 064204
[15] Yang Z B, Xia Y, Zheng S B 2010 Opt. Commun. 283 3052
[16] Yin Z Q, Li F L 2007 Phys. Rev. A 75 012324
[17] Zhang B 2010 Opt. Commun. 283 196
[18] Peng P, Li F L 2007 Phys. Rev. A 75 062320
[19] Zou Y 2009 Chin. J. Quantum Eelectron. 26 69 (in Chinese)[邹 艳 2009 量子电子学报 26 69]
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