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In this paper we consider the situation that four identical two-level atoms are separately trapped in coupled single-mode optical cavities and each atom resonantly interacts with cavity via a one-photon hopping. The three-body entanglement dynamics in each cavity is studied. The influences of atom-cavity coupling constant on the three-body entanglement are discussed. The results obtained using the numerical method show that the three-body entanglement displays the collapse-revival phenomena when atom-cavity coupling constant is larger than a fixed value. On the other hand, the three-body entanglement is the result of the coherent superposition of the two-body entanglements.
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Keywords:
- quantum optics /
- two-level atom /
- coupling cavities /
- three-body 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] Yang R C, Zhang P F, Guo Y Q, Zhang T C 2012 Commun. Theor. Phys. 57 195
[6] Zeng K, Fang M F 2005 Chin. Phys. 14 2009
[7] Lu D M 2011 Acta Phys. Sin. 60 090302 (in Chinese) [卢道明 2011 60 090302]
[8] Zuo Z C, Xia Y J 2003 Acta Phys. Sin. 52 2687 (in Chinese) [左战春, 夏云杰 2003 52 2687]
[9] Tong Z Y, Kuang L M 2000 Chin. Phys. Lett. 17 469
[10] Wong A, Christensen N 2001 Phys. Rev. A 63 044301
[11] Thapliyal A V 1999 Phys. Rev. A 59 3336
[12] Laskowski W, Markiewicz M, Paterek T, Zukowski M 2011 Phys. Rev. A 84 062305
[13] Hwang M R, Park D K, Jung E 2011 Phys. Rev. A 83 012111
[14] Yang Z B 2007 Chin. Phys. 16 329
[15] Zheng S B, Yang Z B, Xia Y 2010 Phys. Rev. A 81 015804
[16] Peng P, Li F L 2007 Phys. Rev. A 75 062320
[17] Ye S Y, Zhong Z R, Zheng S B 2008 Phys. Rev. A 77 014303
[18] Song J, Sun X D, Xia Y, Song H S 2011 Phys. Rev. A 83 052309
[19] Xiao X, Fang M F 2009 Chin. Phys. B 18 4695
[20] Lu D M 2011 Acta Phys. Sin. 60 120303 (in Chinese) [卢道明 2011 60 120303]
[21] Ogden C D, Irish E K, Kim M S 2008 Phys. Rev. A 78 063805
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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] Yang R C, Zhang P F, Guo Y Q, Zhang T C 2012 Commun. Theor. Phys. 57 195
[6] Zeng K, Fang M F 2005 Chin. Phys. 14 2009
[7] Lu D M 2011 Acta Phys. Sin. 60 090302 (in Chinese) [卢道明 2011 60 090302]
[8] Zuo Z C, Xia Y J 2003 Acta Phys. Sin. 52 2687 (in Chinese) [左战春, 夏云杰 2003 52 2687]
[9] Tong Z Y, Kuang L M 2000 Chin. Phys. Lett. 17 469
[10] Wong A, Christensen N 2001 Phys. Rev. A 63 044301
[11] Thapliyal A V 1999 Phys. Rev. A 59 3336
[12] Laskowski W, Markiewicz M, Paterek T, Zukowski M 2011 Phys. Rev. A 84 062305
[13] Hwang M R, Park D K, Jung E 2011 Phys. Rev. A 83 012111
[14] Yang Z B 2007 Chin. Phys. 16 329
[15] Zheng S B, Yang Z B, Xia Y 2010 Phys. Rev. A 81 015804
[16] Peng P, Li F L 2007 Phys. Rev. A 75 062320
[17] Ye S Y, Zhong Z R, Zheng S B 2008 Phys. Rev. A 77 014303
[18] Song J, Sun X D, Xia Y, Song H S 2011 Phys. Rev. A 83 052309
[19] Xiao X, Fang M F 2009 Chin. Phys. B 18 4695
[20] Lu D M 2011 Acta Phys. Sin. 60 120303 (in Chinese) [卢道明 2011 60 120303]
[21] Ogden C D, Irish E K, Kim M S 2008 Phys. Rev. A 78 063805
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