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Chin. Phys. B, 2009, Vol. 18(8): 03247    DOI: 10.1088/1674-1056/18/8/026
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Transferring an N-atom state between two distant cavities via an optical fiber

Ma Song-She, Chen Mei-Feng
College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China
Abstract  This paper proposes a scheme for transferring an N-atom state between two distant cavities via an optical fiber. The scheme is based on adiabatic passage along a dark state. In the scheme, all the atoms are always in ground state, the field mode of the fiber remains in vacuum state, and the field mode of the cavities being excited can be negligible under certain conditions. Therefore, the scheme is very robust against decoherence. The successful probability of implementing the quantum state transfer increases with increasing number of atoms. Furthermore, the interaction time does not need to be accurately adjusted as long as the adiabaticity condition is fulfilled.
Keywords:  atom state      optical fiber      quantum state transfer  
Received:  23 September 2008      Revised:  20 November 2008      Published:  20 August 2009
PACS:  32.80.-t (Photoionization and excitation)  
  02.50.Cw (Probability theory)  
  03.65.Yz (Decoherence; open systems; quantum statistical methods)  
  03.67.-a (Quantum information)  
  42.50.-p (Quantum optics)  
  42.81.-i (Fiber optics)  
Fund: Project supported by the Science Foundation of Educational Committee of Fujian Province (Grant No JB06042).

Cite this article: 

Ma Song-She, Chen Mei-Feng Transferring an N-atom state between two distant cavities via an optical fiber 2009 Chin. Phys. B 18 03247

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