中国物理B ›› 2011, Vol. 20 ›› Issue (10): 100313-100313.doi: 10.1088/1674-1056/20/10/100313

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A nearly deterministic scheme for generation of multiphoton GHZ states with weak cross-Kerr nonlinearity

叶柳1, 方保龙1, 王奕2   

  1. (1)School of Physics and Material Science, Anhui University, Hefei 230039, China; (2)School of Physics and Material Science, Anhui University, Hefei 230039, China; Teaching and Research Section of Physics, School of Life Sciences, Anhui Medical University, Hefei 230032, China
  • 收稿日期:2011-04-19 修回日期:2011-06-09 出版日期:2011-10-15 发布日期:2011-10-15
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11074002), the Doctoral Foundation of the Ministry of Education of China (Grant No. 20103401110003), and the Personal Development Foundation of Anhui Province of China (Grant No. 2008Z018).

A nearly deterministic scheme for generation of multiphoton GHZ states with weak cross-Kerr nonlinearity

Wang Yi(王奕)a)b)†, Ye Liu(叶柳) a)‡, and Fang Bao-Long(方保龙)a)   

  1. a School of Physics and Material Science, Anhui University, Hefei 230039, China; b Teaching and Research Section of Physics, School of Life Sciences, Anhui Medical University, Hefei 230032, China
  • Received:2011-04-19 Revised:2011-06-09 Online:2011-10-15 Published:2011-10-15
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11074002), the Doctoral Foundation of the Ministry of Education of China (Grant No. 20103401110003), and the Personal Development Foundation of Anhui Province of China (Grant No. 2008Z018).

摘要: We propose a scheme to generate polarization-entangled multiphoton Greenberger-Horne-Zeilinger (GHZ) states based on weak cross-Kerr nonlinearity and subsequent homodyne measurement. It can also be generalized to produce maximally N-qubit entangled states. The success probabilities of our schemes are almost equal to 1.

关键词: GHZ state, cross-Kerr nonlinearity, quantum entanglement

Abstract: We propose a scheme to generate polarization-entangled multiphoton Greenberger-Horne-Zeilinger (GHZ) states based on weak cross-Kerr nonlinearity and subsequent homodyne measurement. It can also be generalized to produce maximally N-qubit entangled states. The success probabilities of our schemes are almost equal to 1.

Key words: GHZ state, cross-Kerr nonlinearity, quantum entanglement

中图分类号:  (Entanglement measures, witnesses, and other characterizations)

  • 03.67.Mn
03.65.Ud (Entanglement and quantum nonlocality) 42.50.Dv (Quantum state engineering and measurements)