中国物理B ›› 2000, Vol. 9 ›› Issue (1): 19-23.doi: 10.1088/1009-1963/9/1/005

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

INTERACTION OF A TWO-LEVEL ATOM WITH FINE STRUCTURE MOVING IN AN ELECTROMAGNETIC FIELD

张敬涛, 陈朝阳, 徐至展   

  1. Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 收稿日期:1999-05-10 出版日期:2005-06-10 发布日期:2005-06-10

INTERACTION OF A TWO-LEVEL ATOM WITH FINE STRUCTURE MOVING IN AN ELECTROMAGNETIC FIELD

Zhang Jing-tao (张敬涛), Chen Zhao-yang (陈朝阳), Xu Zhi-zhan (徐至展)   

  1. Laboratory for High Intensity Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • Received:1999-05-10 Online:2005-06-10 Published:2005-06-10

摘要: Dynamics of a moving two-level atom with fine structure interacting with an electromagnetic field is studied. The fine structure increases the damping rate induced by the atomic momentum distribution. When the field is in a Fock state, the Rabi oscillation becomes very complicated; when the field is in a superposition state, the collapse-revival phenomenon disappears for the wider atomic wavepackets. In the presence of the fine structure, each atomic level splits into three sublevels when the field is in a Fock state and the atom has a definite momentum.

Abstract: Dynamics of a moving two-level atom with fine structure interacting with an electromagnetic field is studied. The fine structure increases the damping rate induced by the atomic momentum distribution. When the field is in a Fock state, the Rabi oscillation becomes very complicated; when the field is in a superposition state, the collapse-revival phenomenon disappears for the wider atomic wavepackets. In the presence of the fine structure, each atomic level splits into three sublevels when the field is in a Fock state and the atom has a definite momentum.

中图分类号:  (Fine and hyperfine structure)

  • 32.10.Fn
41.20.-q (Applied classical electromagnetism)