Nonadiabatic Coupling in Fine-Structure Transitions of Alkali Atoms Induced by Diatomic Molecules
Nonadiabatic Coupling in Fine-Structure Transitions of Alkali Atoms Induced by Diatomic Molecules
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双原子分子诱导的碱原子精细结构转变中的非绝热耦合
DOI：
10.1103/physrevlett.47.1585
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发表时间：
1981
影响因子：
8.6
通讯作者：
A. P. Hickman
中科院分区：
文献类型：
--
作者：
A. P. Hickman
与双原子分子碰撞引起的碱原子的精细结构跃迁受到动力学特征的强烈影响，而当碰撞伙伴是稀有气体时，这种特征完全不存在。这种效应是由分子的各向异性引起的非绝热耦合。Rb(5/sup 2/P/sub 1/2/)+H/sub 2/和Rb(5/sup 2/P/sub 1/2/)+He的计算结果与最近的实验结果非常吻合，并解释了这两个体系之间的巨大差异。
Fine-structure transitions of alkali atoms induced by collisions with diatomic molecules are shown to be strongly influenced by a dynamical feature that is completely absent when the collision partner is a rare gas. The effect is a nonadiabatic coupling caused by the anisotropy of the molecule. Calculations for Rb(5/sup 2/P/sub 1/2/)+H/sub 2/ and for Rb(5/sup 2/P/sub 1/2/)+He are in good agreement with recent experiments and explain the dramatic difference between these two systems.