中国物理B ›› 2007, Vol. 16 ›› Issue (2): 329-334.doi: 10.1088/1009-1963/16/2/010

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Teleportation of two-atom entangled state in resonant cavity quantum electrodynamics

杨贞标   

  1. Department of Electronic Science and Applied Physics Fuzhou University, Fuzhou 350002, China
  • 收稿日期:2006-05-15 修回日期:2006-07-06 出版日期:2007-02-20 发布日期:2007-02-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10225421).

Teleportation of two-atom entangled state in resonant cavity quantum electrodynamics

Yang Zhen-Biao(杨贞标)†   

  1. Department of Electronic Science and Applied Physics Fuzhou University, Fuzhou 350002, China
  • Received:2006-05-15 Revised:2006-07-06 Online:2007-02-20 Published:2007-02-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10225421).

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摘要： An alternative scheme is presented for teleportation of a two-atom entangled state in cavity quantum electrodynamics (QED). It is based on the resonant atom--cavity field interaction. In the scheme, only one cavity is involved, and the number of the atoms needed to be detected is decreased compared with the previous scheme. Since the resonant atom--cavity field interaction greatly reduces the interaction time, the decoherence effect can be effectively suppressed during the teleportation process. The experimental feasibility of the scheme is discussed. The scheme can easily be generalized to the teleportation of N-atom Greeninger--Horne--Zeilinger (GHZ) entangled states. The number of atoms needed to be detected does not increase as the number of the atoms in the GHZ state increases.

关键词: teleportation, two-atom entangled state, resonant cavity QED

Abstract: An alternative scheme is presented for teleportation of a two-atom entangled state in cavity quantum electrodynamics (QED). It is based on the resonant atom--cavity field interaction. In the scheme, only one cavity is involved, and the number of the atoms needed to be detected is decreased compared with the previous scheme. Since the resonant atom--cavity field interaction greatly reduces the interaction time, the decoherence effect can be effectively suppressed during the teleportation process. The experimental feasibility of the scheme is discussed. The scheme can easily be generalized to the teleportation of N-atom Greeninger--Horne--Zeilinger (GHZ) entangled states. The number of atoms needed to be detected does not increase as the number of the atoms in the GHZ state increases.

Key words: teleportation, two-atom entangled state, resonant cavity QED

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
03.65.Yz (Decoherence; open systems; quantum statistical methods) 03.67.Lx (Quantum computation architectures and implementations) 03.67.Mn (Entanglement measures, witnesses, and other characterizations) 42.50.Pq (Cavity quantum electrodynamics; micromasers)