中国物理B ›› 2008, Vol. 17 ›› Issue (7): 2346-2351.doi: 10.1088/1674-1056/17/7/004

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Scheme for implementing perfect remote state preparation with W-class state in cavity QED

王学文, 彭朝晖   

  1. School of Physics, Hunan University of Science and Technology, Xiangtan 411201, China
  • 收稿日期:2008-01-01 修回日期:2008-01-08 出版日期:2008-07-09 发布日期:2008-07-09
  • 基金资助:
    In this paper we present a remote state preparation scheme with a three-qubit $W$-class state in cavity QED. It has been shown that a special single-qubit state and a special two-qubit entangled state can be remotely prepared perfectly. Furthermore, the classical information cost in this scheme is less than that in the corresponding teleportation scheme and only a single-qubit projective measurement is made by the sender. We also generalize this idea to the multiqubit $W$-class state.

Scheme for implementing perfect remote state preparation with W-class state in cavity QED

Wang Xue-Wen(王学文) and Peng Zhao-Hui(彭朝晖)†   

  1. School of Physics, Hunan University of Science and Technology, Xiangtan 411201, China
  • Received:2008-01-01 Revised:2008-01-08 Online:2008-07-09 Published:2008-07-09
  • Supported by:
    In this paper we present a remote state preparation scheme with a three-qubit $W$-class state in cavity QED. It has been shown that a special single-qubit state and a special two-qubit entangled state can be remotely prepared perfectly. Furthermore, the classical information cost in this scheme is less than that in the corresponding teleportation scheme and only a single-qubit projective measurement is made by the sender. We also generalize this idea to the multiqubit $W$-class state.

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摘要： remote state preparation, $W$-class state, cavity QED

Abstract:

In this paper we present a remote state preparation scheme with a three-qubit W-class state in cavity QED. It has

been shown that a special single-qubit state and a special two-qubit entangled state can be remotely prepared perfectly.
Furthermore, the classical information cost in this scheme is less than that in the corresponding teleportation scheme
and only a single-qubit projective measurement is made by the sender. We also generalize this idea to the multiqubit
W-class state.

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
03.67.Lx (Quantum computation architectures and implementations) 42.50.Dv (Quantum state engineering and measurements) 42.50.Pq (Cavity quantum electrodynamics; micromasers)