中国物理B ›› 2004, Vol. 13 ›› Issue (9): 1432-1437.doi: 10.1088/1009-1963/13/9/012

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Atomic dynamics in the mode－mode competition system

吴琴, 方卯发   

  1. College of Physics and Information Science, Hunan Normal University, Changsha 410081, China
  • 收稿日期:2003-11-20 修回日期:2003-12-15 出版日期:2004-06-21 发布日期:2005-06-21
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No 10374025), by the Natural Science Foundation of Hunan Province, China (Grant No 01JJY3030) and by the Ministry of Education, China.

Atomic dynamics in the mode－mode competition system

Wu Qin (吴琴), Fang Mao-Fa (方卯发)   

  1. College of Physics and Information Science, Hunan Normal University, Changsha 410081, China
  • Received:2003-11-20 Revised:2003-12-15 Online:2004-06-21 Published:2005-06-21
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No 10374025), by the Natural Science Foundation of Hunan Province, China (Grant No 01JJY3030) and by the Ministry of Education, China.

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摘要： The atomic dynamical properties in the system with competing k-photon and l-photon transitions are studied fully by means of quantum theory. We discuss the influences of the mode－mode competition, the relative competing strengths of the atom and the two-mode field, and the initial state of the system on the atomic dynamics. We show that the presence of the mode－mode competition can result in quite a periodical collapses-revivals of the atomic inversion and the increase of the initial photons of the system can lead to the collapse－revival phenomenon and prolong the revival time of the atomic inversion.

关键词: two-mode competition model, atomic inversion, collapse and revival

Abstract: The atomic dynamical properties in the system with competing k-photon and l-photon transitions are studied fully by means of quantum theory. We discuss the influences of the mode－mode competition, the relative competing strengths of the atom and the two-mode field, and the initial state of the system on the atomic dynamics. We show that the presence of the mode－mode competition can result in quite a periodical collapses-revivals of the atomic inversion and the increase of the initial photons of the system can lead to the collapse－revival phenomenon and prolong the revival time of the atomic inversion.

Key words: two-mode competition model, atomic inversion, collapse and revival

中图分类号:  (Strong-field excitation of optical transitions in quantum systems; multiphoton processes; dynamic Stark shift)

  • 42.50.Hz
42.50.Ct (Quantum description of interaction of light and matter; related experiments) 32.80.-t (Photoionization and excitation)