中国物理B ›› 2008, Vol. 17 ›› Issue (2): 411-414.doi: 10.1088/1674-1056/17/2/010

• GENERAL • 上一篇    下一篇

Scheme for realizing assisted cloning of an unknown two-atom entangled state via cavity QED

詹佑邦   

  1. Department of Physics, Huaiyin Teachers College, Huaian 223001, China
  • 收稿日期:2007-03-31 修回日期:2007-05-19 出版日期:2008-02-20 发布日期:2008-02-20
  • 基金资助:
    Project supported by the National Basic Research Program of China (973 Program) (Grant No 2007CB311100), the National High Technology Research and Development Program of China (Grant Nos 2006AA01Z419 and 20060101Z4015), the Major Research plan of the National Natural Science Foundation of China (Grant No 90604023), 2008 Scientific Research Common Program of Beijing Municipal Commission of Education， The Scientific Research Foundation for the Youth of Beijing University of Technology (Grant No 97007016200701), the National Research Foundation for the Doctoral Program of Higher Education of China (Grant No 20040013007), the National Laboratory for Modern Communications Science Foundation of China (Grant No 9140C1101010601), and the Doctor Scientific Research Activation Foundation of Beijing University of Technology (Grant No 52007016200702).

Scheme for realizing assisted cloning of an unknown two-atom entangled state via cavity QED

Zhan You-Bang(詹佑邦)†   

  1. Department of Physics, Huaiyin Teachers College, Huaian 223001, China
  • Received:2007-03-31 Revised:2007-05-19 Online:2008-02-20 Published:2008-02-20
  • Supported by:
    Project supported by the National Basic Research Program of China (973 Program) (Grant No 2007CB311100), the National High Technology Research and Development Program of China (Grant Nos 2006AA01Z419 and 20060101Z4015), the Major Research plan of the National Natural Science Foundation of China (Grant No 90604023), 2008 Scientific Research Common Program of Beijing Municipal Commission of Education， The Scientific Research Foundation for the Youth of Beijing University of Technology (Grant No 97007016200701), the National Research Foundation for the Doctoral Program of Higher Education of China (Grant No 20040013007), the National Laboratory for Modern Communications Science Foundation of China (Grant No 9140C1101010601), and the Doctor Scientific Research Activation Foundation of Beijing University of Technology (Grant No 52007016200702).

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摘要： This paper proposes a scheme where one can realize quantum cloning of an unknown two-atom entangled state with assistance of a state preparer in cavity QED. The first stage of the scheme requires usual teleportation. In the second stage of the scheme, with the assistance of the preparer, the perfect copies of an unknown atomic entangled state can be produced.

Abstract: This paper proposes a scheme where one can realize quantum cloning of an unknown two-atom entangled state with assistance of a state preparer in cavity QED. The first stage of the scheme requires usual teleportation. In the second stage of the scheme, with the assistance of the preparer, the perfect copies of an unknown atomic entangled state can be produced.

Key words: quantum cloning, two-atom entangled state, cavity QED

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

  • 42.50.Pq
42.50.Dv (Quantum state engineering and measurements) 03.65.Ud (Entanglement and quantum nonlocality) 03.67.-a (Quantum information)