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

• 作者: 张敬涛 徐至展 陈朝阳
• 来源期刊: 中国物理(海外版)
• 年，卷（期）: 2000,（1）
• 页码范围: 19-23
• 页数: 5页
• 分类号: 3250|3780
• 语种: 英文

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.