Chin. Phys. Lett.  2006, Vol. 23 Issue (5): 1088-1091    DOI:
Original Articles |
An Effective Entanglement among Three Fibre-Connected Distant Atoms
GUO Yan-Qing;CHEN Jing;SONG He-Shan
Department of Physics, Dalian University of Technology, Dalian 116023
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GUO Yan-Qing, CHEN Jing, SONG He-Shan 2006 Chin. Phys. Lett. 23 1088-1091
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Abstract Under the enlightenment of the scheme of Mancini and Bose [Phys. Rev. A 70(2004)022307), we discuss two-atom entanglement in a fibre-connected triple-distant-atom system. Under adiabatic approximation, we obtain an effective Hamiltonian in form of the triple-body Ising-model interaction. The existence of a third atom is found to damage the other two-atom entanglement. The nearest-neighbouring two atoms that share a larger Ising strength are more strongly entangled.
Keywords: 03.67.Mn      42.50.Pq     
Published: 01 May 2006
PACS:  03.67.Mn (Entanglement measures, witnesses, and other characterizations)  
  42.50.Pq (Cavity quantum electrodynamics; micromasers)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2006/V23/I5/01088
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