中国物理B ›› 2006, Vol. 15 ›› Issue (11): 2506-2509.doi: 10.1088/1009-1963/15/11/007

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A scheme for transferring an unknown atomic entangledstate via cavity quantum electrodynamics

倪致祥1, 叶柳2, 吴韬3   

  1. (1)Department of Physics, Fuyang Teachers College, Fuyang 236032, China; (2)School of Physics & Material Science, Anhui University, Hefei 230039, China; (3)School of Physics & Material Science, Anhui University, Hefei 230039, China;Department of Physics, Fuyang Teachers College, Fuyang 236032, China
  • 收稿日期:2006-01-03 修回日期:2006-06-11 出版日期:2006-11-20 发布日期:2006-11-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10574001), the Program of the Education Department of Anhui Province, China (Grant No 2004kj029), and the Program of Fuyang Teachers College, China (Grant No 2005LQ04).

A scheme for transferring an unknown atomic entangledstate via cavity quantum electrodynamics

Wu Tao(吴韬)a)b)†, Ye Liu(叶柳)a), and Ni Zhi-Xiang(倪致祥)b)   

  1. a School of Physics & Material Science, Anhui University, Hefei 230039, China; b Department of Physics, Fuyang Teachers College, Fuyang 236032, China
  • Received:2006-01-03 Revised:2006-06-11 Online:2006-11-20 Published:2006-11-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10574001), the Program of the Education Department of Anhui Province, China (Grant No 2004kj029), and the Program of Fuyang Teachers College, China (Grant No 2005LQ04).

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摘要： In this paper, we propose a scheme for transferring an unknown atomic entangled state via cavity quantum electrodynamics (QED). This scheme, which has a successful probability of 100 percent, does not require Bell-state measurement and performing any operations to reconstruct an initial state. Meanwhile, the scheme only involves atom--field interaction with a large detuning and does not require the transfer of quantum information between the atoms and cavity. Thus the scheme is insensitive to the cavity field states and cavity decay. This scheme can also be extended to transfer ring an entangled state of $n$-atom.

关键词: transfer, cavity QED, entangled state, quantum teleportation

Abstract: In this paper, we propose a scheme for transferring an unknown atomic entangled state via cavity quantum electrodynamics (QED). This scheme, which has a successful probability of 100 percent, does not require Bell-state measurement and performing any operations to reconstruct an initial state. Meanwhile, the scheme only involves atom--field interaction with a large detuning and does not require the transfer of quantum information between the atoms and cavity. Thus the scheme is insensitive to the cavity field states and cavity decay. This scheme can also be extended to transfer ring an entangled state of $n$-atom.

Key words: transfer, cavity QED, entangled state, quantum teleportation

中图分类号:  (Cavity quantum electrodynamics; micromasers)

  • 42.50.Pq
42.50.Dv (Quantum state engineering and measurements)