中国物理B ›› 2006, Vol. 15 ›› Issue (3): 488-491.doi: 10.1088/1009-1963/15/3/006

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Entanglement diversion and quantum teleportation of entangled coherent states

蔡新华, 郭杰荣, 聂建军, 贾金平   

  1. Department of Physics and Electronics, Hunan University of Arts and Science, Changde 415000, China
  • 收稿日期:2005-10-12 修回日期:2005-11-11 出版日期:2006-03-20 发布日期:2006-03-20
  • 基金资助:
    Project supported by the Science Research Foundation of Hunan Provincial Education Department, China (Grant No 02C098) and the Science Research Foundation of Hunan University of Arts and Science, China (Grant No JJZD0502).

Entanglement diversion and quantum teleportation of entangled coherent states

Cai Xin-Hua (蔡新华), Guo Jie-Rong (郭杰荣), Nie Jian-Jun (聂建军), Jia Jin-Ping (贾金平)   

  1. Department of Physics and Electronics, Hunan University of Arts and Science, Changde 415000, China
  • Received:2005-10-12 Revised:2005-11-11 Online:2006-03-20 Published:2006-03-20
  • Supported by:
    Project supported by the Science Research Foundation of Hunan Provincial Education Department, China (Grant No 02C098) and the Science Research Foundation of Hunan University of Arts and Science, China (Grant No JJZD0502).

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摘要： The proposals on entanglement diversion and quantum teleportation of entangled coherent states are presented.In these proposals, the entanglement between two coherent states, $|\alpha\rangle$ and $|-\alpha\rangle$, with the same amplitude but a phase difference of $\pi$ is utilized as a quantum channel. The processes of the entanglement diversion and the teleportation are achieved by using the 50/50 symmetric beam splitters, the phase shifters and the photodetectors with the help of classical information.

关键词: entangled coherent state, entanglement diversion, quantum teleportation, detection of photon

Abstract: The proposals on entanglement diversion and quantum teleportation of entangled coherent states are presented.In these proposals, the entanglement between two coherent states, $|\alpha\rangle$ and $|-\alpha\rangle$, with the same amplitude but a phase difference of $\pi$ is utilized as a quantum channel. The processes of the entanglement diversion and the teleportation are achieved by using the 50/50 symmetric beam splitters, the phase shifters and the photodetectors with the help of classical information.

Key words: entangled coherent state, entanglement diversion, quantum teleportation, detection of photon

中图分类号:  (Quantum communication)

  • 03.67.Hk
03.65.Ud (Entanglement and quantum nonlocality) 42.50.Dv (Quantum state engineering and measurements) 03.67.Mn (Entanglement measures, witnesses, and other characterizations) 42.79.Fm (Reflectors, beam splitters, and deflectors)