Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (6): 94-97.

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Cavity Field Spectra of Two Diferent Atoms Interacting with Two-Mode Field in Thermal States

Zhang Gui-ruing  Li Yue-ke  Gao Yun-feng   

  1. College of Educational Tech.nd Massmedium, Liaocheng Univ.,aocheng 252059,handong,hina
  • Received:2004-12-02 Online:2005-06-25 Published:2005-06-25
  • Contact: 张桂明(1952-)，男，副教授，主要从事量子光学方面的研究． E-mail:zhgm@lctu．edu．cn
  • About author:张桂明(1952-)，男，副教授，主要从事量子光学方面的研究．
  • Supported by:

    山东省自然科学基金资助项目(Y2004A09)

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Abstract:

In order to obtain the cavity field spectra of two different atoms interacting with a two.mode field.the ex-pression of the cavity field spectra in an initial thermal field with random intensity is derived by solving the eigen equation,and some numerical results are presented.Moreover,the effects of the relative coupling constant and the initial field intensity on the spectrum structure al"e discussed.It is found that(1)a two-peak structure appears for
each mode spectrum when the relative coupling constant is naught and the initial field is relatively weak;(2)the two peaks gradually draw close to each other with the increase in relative coupling constant;(3)each mode spec-trum appears as a single peak when the relative coupling constant achieves 1;and(4)when the average photon number of one mode increases,the distance between the pair peaks of this mode decreases,while that of the other
mode increases.

Key words: two-atom system, therm al filed, cavity field spectrum