CAJ | 학술논문

分子内部转动传能的静态池实验观察到了碰撞量子干涉效应(CQI),并且测得积分干涉角,为了获得更加精确的分子内部转动传能的碰撞量子干涉效应信息,实验就必须要采用分子束实验进行.本文理论上采用各项异性相互作用势,应用含时微扰理论的一级波恩近似,假想在分子束实验的条件下,建立在原子-双原子分子体系中碰撞量子干涉的理论模型.理论上推导出微分干涉角具体表达式,通过计算定性地讨论了微分干涉角随着碰撞参数、速率等的变化趋势,同时初步探讨了实验的正确观测途径,得出了采用分子束进行实验观测的实验方法,为进一步进行分子束实验提供了理论基础,对实验的进行起到了一定的借鉴作用.
분자내부전동전능적정태지실험관찰도료팽당양자간섭효응(CQI),병차측득적분간섭각,위료획득경가정학적분자내부전동전능적팽당양자간섭효응신식,실험취필수요채용분자속실험진행.본문이론상채용각항이성상호작용세,응용함시미우이론적일급파은근사,가상재분자속실험적조건하,건립재원자-쌍원자분자체계중팽당양자간섭적이론모형.이론상추도출미분간섭각구체표체식,통과계산정성지토론료미분간섭각수착팽당삼수、속솔등적변화추세,동시초보탐토료실험적정학관측도경,득출료채용분자속진행실험관측적실험방법,위진일보진행분자속실험제공료이론기출,대실험적진행기도료일정적차감작용.
Collisonal quantum interference(CQI)was observed in the intramolecular rotational energy transfer in the experiment of the static cell,and the integral interference angles were measured.To observe more precise information,the experiment in the molecular beam should be taken,from which the differential interference angle can be obtained precisely.In this paper,the theoretical model of CQI is described in an atom-diatom system in the condition of the molecular beam,based on the first-Born approximation of time dependent perturbation theory,taking into accounts the anisotropic Lennard-Jones interaction potentials.The method of observing and measuring correctly the differential interference angle is presented.The changing tendencies of the differential interference angle with the impact parameter,velocity,and et al.are discussed.