中国物理B ›› 2009, Vol. 18 ›› Issue (5): 1742-1748.doi: 10.1088/1674-1056/18/5/005

• GENERAL • 上一篇    下一篇

Teleportation of tripartite entangled coherent states

孙勇, 满忠晓, 夏云杰   

  1. Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, and Department of Physics, Qufu Normal University, Qufu 273165, China
  • 收稿日期:2008-09-05 修回日期:2008-11-10 出版日期:2009-05-20 发布日期:2009-05-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10774088).

Teleportation of tripartite entangled coherent states

Sun Yong(孙勇), Man Zhong-Xiao(满忠晓), and Xia Yun-Jie(夏云杰)†   

  1. Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, and Department of Physics, Qufu Normal University, Qufu 273165, China
  • Received:2008-09-05 Revised:2008-11-10 Online:2009-05-20 Published:2009-05-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10774088).

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摘要： This paper proposes a feasible scheme for the quantum teleportation of tripartite entangled coherent states by using linear optical devices such as beam splitters, phase shifters and photo detectors. The scheme is based on the bipartite maximally entangled coherent state and the tripartite entangled coherent state with bipartite maximal entanglement as quantum channels. It shows that when the mean number of photons is equal to 2, the total minimum of the average fidelity for an arbitrary tripartite entangled state is 1-0.67×10 -3.

Abstract: This paper proposes a feasible scheme for the quantum teleportation of tripartite entangled coherent states by using linear optical devices such as beam splitters, phase shifters and photo detectors. The scheme is based on the bipartite maximally entangled coherent state and the tripartite entangled coherent state with bipartite maximal entanglement as quantum channels. It shows that when the mean number of photons is equal to 2, the total minimum of the average fidelity for an arbitrary tripartite entangled state is 1-0.67×10 -3.

Key words: teleportation, entangled coherent state, transformation

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
03.67.Mn (Entanglement measures, witnesses, and other characterizations) 42.50.Dv (Quantum state engineering and measurements)