中国物理B ›› 2009, Vol. 18 ›› Issue (8): 3247-3250.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

马宋设, 陈美锋   

  1. College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China
  • 收稿日期:2008-09-23 修回日期:2008-11-20 出版日期:2009-08-20 发布日期:2009-08-20
  • 基金资助:
    Project supported by the Science Foundation of Educational Committee of Fujian Province (Grant No JB06042).

Transferring an N-atom state between two distant cavities via an optical fiber

Ma Song-She(马宋设)† and Chen Mei-Feng(陈美锋)   

  1. College of Physics and Information Engineering, Fuzhou University, Fuzhou 350108, China
  • Received:2008-09-23 Revised:2008-11-20 Online:2009-08-20 Published:2009-08-20
  • Supported by:
    Project supported by the Science Foundation of Educational Committee of Fujian Province (Grant No JB06042).

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摘要： 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.

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.

Key words: quantum state transfer, atom state, optical fiber

中图分类号:  (Photoionization and excitation)

  • 32.80.-t
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)