中国物理B ›› 2011, Vol. 20 ›› Issue (5): 50312-050312.doi: 10.1088/1674-1056/20/5/050312

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Scheme for implementing perfect quantum teleportation with four-qubit entangled states in cavity quantum electrodynamics

唐京武, 赵冠湘, 何雄辉   

  1. School of Physics, Hunan University of Science and Technology, Xiangtan 411201, China
  • 收稿日期:2010-10-08 修回日期:2010-11-30 出版日期:2011-05-15 发布日期:2011-05-15

Scheme for implementing perfect quantum teleportation with four-qubit entangled states in cavity quantum electrodynamics

Tang Jing-Wu (唐京武), Zhao Guan-Xiang (赵冠湘), He Xiong-Hui (何雄辉)   

  1. School of Physics, Hunan University of Science and Technology, Xiangtan 411201, China
  • Received:2010-10-08 Revised:2010-11-30 Online:2011-05-15 Published:2011-05-15

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摘要： Recently, Peng et al. [2010 Eur. Phys. J. D 58 403] proposed to teleport an arbitrary two-qubit state with a family of four-qubit entangled states, which simultaneously include the tensor product of two Bell states, linear cluster state and Dicke-class state. This paper proposes to implement their scheme in cavity quantum electrodynamics and then presents a new family of four-qubit entangled state |Ω4>1234. It simultaneously includes all the well-known four-qubit entangled states which can be used to teleport an arbitrary two-qubit state. The distinct advantage of the scheme is that it only needs a single setup to prepare the whole family of four-qubit entangled states, which will be very convenient for experimental realization. After discussing the experimental condition in detail, we show the scheme may be feasible based on present technology in cavity quantum electrodynamics.

关键词: entanglement, teleportation, cavity quantum electrodynamics

Abstract: Recently, Peng et al. [2010 Eur. Phys. J. D 58 403] proposed to teleport an arbitrary two-qubit state with a family of four-qubit entangled states, which simultaneously include the tensor product of two Bell states, linear cluster state and Dicke-class state. This paper proposes to implement their scheme in cavity quantum electrodynamics and then presents a new family of four-qubit entangled state $|\varOmega\rangle_{1234}$. It simultaneously includes all the well-known four-qubit entangled states which can be used to teleport an arbitrary two-qubit state. The distinct advantage of the scheme is that it only needs a single setup to prepare the whole family of four-qubit entangled states, which will be very convenient for experimental realization. After discussing the experimental condition in detail, we show the scheme may be feasible based on present technology in cavity quantum electrodynamics.

Key words: entanglement, teleportation, cavity quantum electrodynamics

中图分类号:  (Quantum communication)

  • 03.67.Hk
42.50.Pq (Cavity quantum electrodynamics; micromasers)