中国物理B ›› 2004, Vol. 13 ›› Issue (8): 1276-1282.doi: 10.1088/1009-1963/13/8/016

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Influence of atomic motion on the population and dipole squeezing of a cascade three-level atom in cavity field

朱爱东, 张寿   

  1. Department of Physics, College of Science and Engineering, Yanbian University, Yanji 133002, China
  • 收稿日期:2004-02-11 修回日期:2004-03-10 出版日期:2004-06-21 发布日期:2005-06-22

Influence of atomic motion on the population and dipole squeezing of a cascade three-level atom in cavity field

Zhu Ai-Dong (朱爱东), Zhang Shou (张寿)   

  1. Department of Physics, College of Science and Engineering, Yanbian University, Yanji 133002, China
  • Received:2004-02-11 Revised:2004-03-10 Online:2004-06-21 Published:2005-06-22

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摘要： The dynamical property of a cascade three-level atom is investigated in the condition of atomic motion. The influence of atomic motion on the population and dipole squeezing is discussed. The results show that atomic motion makes the amplitude of atomic population be steady and increasing the parameter εp which denotes the atomic motion and the structure of field mode can shorten the period of collapse－revivals. By choosing an appropriate parameter εp, we can obtain a dipole squeezed atom of long standing.

关键词: atomic population, dipole squeezing effect, atomic motion, cascade three-level atom

Abstract: The dynamical property of a cascade three-level atom is investigated in the condition of atomic motion. The influence of atomic motion on the population and dipole squeezing is discussed. The results show that atomic motion makes the amplitude of atomic population be steady and increasing the parameter εp which denotes the atomic motion and the structure of field mode can shorten the period of collapse－revivals. By choosing an appropriate parameter εp, we can obtain a dipole squeezed atom of long standing.

Key words: atomic population, dipole squeezing effect, atomic motion, cascade three-level atom

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

  • 42.50.Dv
32.80.Xx (Level crossing and optical pumping)