中国物理B ›› 2005, Vol. 14 ›› Issue (1): 137-143.doi: 10.1088/1009-1963/14/1/025

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Effect of an external radiation field on the properties of the atoms and cavity field in the two-atom Tavis-Cummings model

王琪1, 王忠纯2, 张永生3, 郭光灿3   

  1. (1)Department of Physics, Yancheng Teachers College, Yancheng,224002, China;College of Physical Electronics, University of Electronic Science and Technology of China, Chengdou, 610054, China; (2)Department of Physics, Yancheng Teachers College, Yancheng,224002, China;Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei,230026, China; (3)Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei,230026, China
  • 收稿日期:2004-05-26 修回日期:2004-09-20 出版日期:2005-01-20 发布日期:2005-01-20
  • 基金资助:
    Project supported by the National Fundamental Research Programme (Grant No 2001CB309300), Natural Science Research Fund of the Jiangsu Education Commission of China (Grant No 03KJD140240)

Effect of an external radiation field on the properties of the atoms and cavity field in the two-atom Tavis-Cummings model

Wang Zhong-Chun (王忠纯)ab, Wang Qi (王琪)ac, Zhang Yong-Sheng (张永生)b, Guo Guang-Can (郭光灿)b   

  1. a Department of Physics, Yancheng Teachers College, Yancheng 224002, China; b Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China; c College of Physical Electronics, University of Electronic Science and Technology of China, Chengdou 610054, China
  • Received:2004-05-26 Revised:2004-09-20 Online:2005-01-20 Published:2005-01-20
  • Supported by:
    Project supported by the National Fundamental Research Programme (Grant No 2001CB309300), Natural Science Research Fund of the Jiangsu Education Commission of China (Grant No 03KJD140240)

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摘要： We study the properties of atoms and cavity field in the two-atom Tavis--Cummings model where the two atoms interact with each other and are also driven by an external classical field. We consider the special case that the cavity is initially in a coherent state. The atomic inversion, the average photons number and the Mandel parameter in the driven Tavis--Cummings model are given and analysed numerically. We pay special attention to the dynamical behaviour of the atoms and the cavity field modified by the external field.

关键词: Tavis--Cummings model, classical driving field, dipole--dipole interaction, quantum prop-erty

Abstract: We study the properties of atoms and cavity field in the two-atom Tavis--Cummings model where the two atoms interact with each other and are also driven by an external classical field. We consider the special case that the cavity is initially in a coherent state. The atomic inversion, the average photons number and the Mandel parameter in the driven Tavis--Cummings model are given and analysed numerically. We pay special attention to the dynamical behaviour of the atoms and the cavity field modified by the external field.

Key words: Tavis--Cummings model, classical driving field, dipole--dipole interaction, quantum prop-erty

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