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转动传能中的量子干涉--干涉角和转动量子数的关系
引用本文:李永庆,陈跃辉,李春霞,马凤才.转动传能中的量子干涉--干涉角和转动量子数的关系[J].原子与分子物理学报,2005,22(4):617-624.
作者姓名:李永庆  陈跃辉  李春霞  马凤才
作者单位:辽宁大学物理系,沈阳,110036
基金项目:国家自然科学基金资助项目(10374040)
摘    要:沙国河等人在CO(A1∏(v=0)~e3∑-(v=1))体系与He,Ne和Ar碰撞诱导转动传能中首次观测到了量子干涉效应,并测量了干涉度。从理论上进一步研究原子-双原子分子体系碰撞诱导转动传能中量子干涉效应与转动量子数以及能量间隔的关系是十分必要的。我们考虑长程相互作用势,应用一级玻恩近似和直线轨迹近似,分别计算了CO(A1∏(v=0)~e3∑-(v=1))体系和He,Ne,Ar碰撞诱导转动传能中不同转动量子数以及不同能量间隔下的干涉角,得到了干涉角随转动量子数和能量间隔的变化趋势。这些结果对设计、分析这种类型的实验有一定的指导意义。

关 键 词:碰撞诱导转动传能  干涉角  转动量子数
文章编号:1000-0364(2005)04-0617-08
收稿时间:10 17 2004 12:00AM
修稿时间:2004-10-17

Collisional quantum interference on rotational energy transfer: The relationship between the interference angle and the rotational quantum number
LI Yong-qing,CHEN Yue-hui,LI Chun-xia,MA Feng-cai.Collisional quantum interference on rotational energy transfer: The relationship between the interference angle and the rotational quantum number[J].Journal of Atomic and Molecular Physics,2005,22(4):617-624.
Authors:LI Yong-qing  CHEN Yue-hui  LI Chun-xia  MA Feng-cai
Institution:Department of Physics, Liaoning University, Shenyang 110036,P. R. China
Abstract:The observation of collisional quantum interference in intramolecular rotational energy transfer was obtained by Sha and co-workers in the CO(A()~1∏(v=0)~e()~3∑~-(v=1)) system in collision with He,Ne and Ar.,The interference degree was measured.Based on the first-Born approximation of time dependent perturbation theory,taking into account the long-range interaction potential and the "straight-line" trajectory approximation,we calculated respectively the interference angle with the different rotational quantum number,the different energy gap of collisional quantum interference rotational energy transfer in an atom-diatom system,the changing tendency of differential interference angle is obtained.This theoretical model is important to understanding or performing this kind of experiments.
Keywords:Rotational energy transfer  Interference angle  Rotational quantum number
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