中国物理B ›› 2008, Vol. 17 ›› Issue (5): 1618-1622.doi: 10.1088/1674-1056/17/5/015

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Generation of cluster-type entangled squeezed vacuum states

Yeon Kyu-Hwang1, 文晶姬2, 邵晓强2, 金星日2, 张 寿3   

  1. (1)BK21 Program Physics and Department of Physics, College of Natural Science, Chungbuk National University, Cheonju, Chungbuk 361-763, Republic of Korea; (2)Department of Physics, College of Science, Yanbian University, Yanji 133002, China; (3)Department of Physics, College of Science, Yanbian University, Yanji 133002, China;Center for the Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China
  • 收稿日期:2007-07-03 修回日期:2007-11-05 出版日期:2008-05-20 发布日期:2008-05-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 60667001).

Generation of cluster-type entangled squeezed vacuum states

Wen Jing-Ji(文晶姬)a), Shao Xiao-Qiang(邵晓强)a), Jin Xing-Ri(金星日)a), Zhang Shou(张寿)a)b)†, and Yeon Kyu-Hwangc),   

  1. a Department of Physics, College of Science, Yanbian University, Yanji 133002, China; b Center for the Condensed-Matter Science and Technology, Harbin Institute of Technology, Harbin 150001, China; c BK21 Program Physics and Department of Physics, College of Natural Science, Chungbuk National University, Cheonju, Chungbuk 361-763, Republic of Korea
  • Received:2007-07-03 Revised:2007-11-05 Online:2008-05-20 Published:2008-05-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 60667001).

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摘要： We present a scheme to prepare cluster-type entangled squeezed vacuum states (CTESVS) by considering the two-photon interaction between a two-level atom and a high-quality cavity, driven by a strong classical field. After the realization of simple atomic measurements, the generation of CTESVS in four separate cavities is accomplished within the cavity decay time. In the case of large atom--cavity detuning, the scheme is immune to the effect of atomic spontaneous emission.

关键词: cluster state, squeezed vacuum state, quantum entanglement

Abstract: We present a scheme to prepare cluster-type entangled squeezed vacuum states (CTESVS) by considering the two-photon interaction between a two-level atom and a high-quality cavity, driven by a strong classical field. After the realization of simple atomic measurements, the generation of CTESVS in four separate cavities is accomplished within the cavity decay time. In the case of large atom--cavity detuning, the scheme is immune to the effect of atomic spontaneous emission.

Key words: cluster state, squeezed vacuum state, quantum entanglement

中图分类号:  (Quantum state engineering and measurements)

  • 42.50.Dv
03.65.Ud (Entanglement and quantum nonlocality) 03.67.Mn (Entanglement measures, witnesses, and other characterizations)