中国物理B ›› 2012, Vol. 21 ›› Issue (1): 10305-010305.doi: 10.1088/1674-1056/21/1/010305

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Four-mode coherent-entangled state and its application

徐兴磊1, 任廷琦2, 李洪奇3, 张运海3   

  1. (1)Department of Physics, Heze University, Heze 274015, China; Key Laboratory of Quantum Communication and Calculation, Heze University, Heze 274015, China; (2)Department of Physics, Qufu Normal University, Qufu 273165, China; (3)Department of Physics, Qufu Normal University, Qufu 273165, China; Department of Physics, Heze University, Heze 274015, China; Key Laboratory of Quantum Communication and Calculation, Heze University, Heze 274015, China
  • 收稿日期:2011-08-08 修回日期:2011-09-15 出版日期:2012-01-15 发布日期:2012-01-20
  • 基金资助:
    Project supported by the Natural Science Foundation of Shandong Province, China (Grant No. Y2008A16), the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20103705110001), the University Experimental Technology Foun

Four-mode coherent-entangled state and its application

Li Hong-Qi(李洪奇)a)b)c), Ren Ting-Qi(任廷琦)a), Zhang Yun-Hai(张运海)a)b)c), and Xu Xing-Lei(徐兴磊)b)c)†   

  1. a Department of Physics, Qufu Normal University, Qufu 273165, China; b Department of Physics, Heze University, Heze 274015, China; c Key Laboratory of Quantum Communication and Calculation, Heze University, Heze 274015, China
  • Received:2011-08-08 Revised:2011-09-15 Online:2012-01-15 Published:2012-01-20
  • Supported by:
    Project supported by the Natural Science Foundation of Shandong Province, China (Grant No. Y2008A16), the Specialized Research Fund for the Doctoral Program of Higher Education, China (Grant No. 20103705110001), the University Experimental Technology Foun

摘要: A new kind of four-mode continuous variable coherent-entangled state is proposed in the Fock space by using the technique of integration within an ordered product, which exhibits both the properties of a coherent state and an entangled state, and spans a complete and orthonormal representation. The conjugate state of the four-mode continuous variable coherent-entangled state is derived by using the Fourier transformation. Moreover, a simple experimental protocol of generating a four-mode continuous variable coherent-entangled state is proposed by using beam splitters. As applications of this four-mode continuous variable coherent-entangled state, a four-mode entangled state and a four-mode squeezing-Fresnel operator are constructed.

关键词: coherent-entangled state, beam splitter, squeezing-Fresnel operator, technique of integration within an ordered product

Abstract: A new kind of four-mode continuous variable coherent-entangled state is proposed in the Fock space by using the technique of integration within an ordered product, which exhibits both the properties of a coherent state and an entangled state, and spans a complete and orthonormal representation. The conjugate state of the four-mode continuous variable coherent-entangled state is derived by using the Fourier transformation. Moreover, a simple experimental protocol of generating a four-mode continuous variable coherent-entangled state is proposed by using beam splitters. As applications of this four-mode continuous variable coherent-entangled state, a four-mode entangled state and a four-mode squeezing-Fresnel operator are constructed.

Key words: coherent-entangled state, beam splitter, squeezing-Fresnel operator, technique of integration within an ordered product

中图分类号:  (Quantum information)

  • 03.67.-a
03.65.-w (Quantum mechanics)