中国物理B ›› 2007, Vol. 16 ›› Issue (4): 906-909.doi: 10.1088/1009-1963/16/4/006

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Fast scheme for generating quantum-interference states and GHZ state of N trapped ions

方卯发1, 廖湘萍1, 蔡建武1, 曹帅1, 郑小娟2   

  1. (1)College of Physics and Information Science,Hunan Normal University, Changsha 410081, China; (2)College of Physics and Information Science,Hunan Normal University, Changsha 410081, China；School of Physics Science and Technology, Central South University, Changsha 410083, China
  • 收稿日期:2006-08-29 修回日期:2006-09-03 出版日期:2007-04-20 发布日期:2007-04-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10374025) and the Hunan Provincial Natural Science Foundation of China (Grant No 06JJ4003).

Fast scheme for generating quantum-interference states and GHZ state of N trapped ions

Zheng Xiao-Juan(郑小娟)a)b), Fang Mao-Fa(方卯发)a)†, Liao Xiang-Ping(廖湘萍)a), Cai Jian-Wu(蔡建武)a), and Cao Shuai(曹帅)a)   

  1. a College of Physics and Information Science,Hunan Normal University, Changsha 410081, China; b School of Physics Science and Technology, Central South University, Changsha 410083, China
  • Received:2006-08-29 Revised:2006-09-03 Online:2007-04-20 Published:2007-04-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10374025) and the Hunan Provincial Natural Science Foundation of China (Grant No 06JJ4003).

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摘要： We propose a fast scheme to generate the quantum-interference states of N trapped ions. In the scheme the ions are driven by a standing-wave laser beam whose carrier frequency is tuned such that the ion transition can take place. We also propose a simple and fast scheme to produce the GHZ state of N hot trapped ions and this scheme is insensitive to the heating of vibrational motion, which is important from the viewpoint of decoherence.

关键词: quantum-interference states, trapped ions, the GHZ state

Abstract: We propose a fast scheme to generate the quantum-interference states of N trapped ions. In the scheme the ions are driven by a standing-wave laser beam whose carrier frequency is tuned such that the ion transition can take place. We also propose a simple and fast scheme to produce the GHZ state of N hot trapped ions and this scheme is insensitive to the heating of vibrational motion, which is important from the viewpoint of decoherence.

Key words: quantum-interference states, trapped ions, the GHZ state

中图分类号:  (Entanglement and quantum nonlocality)

  • 03.65.Ud
03.65.Yz (Decoherence; open systems; quantum statistical methods)