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Multipolar model for collisional quantum interference on rotational energy transfer

Mengtao Sun, GH Sha, FC Ma, SL Cong, JC Xie, Chaohua Zhang

Dalian Institute of Chemical Physics, CAS Institutional Repository, 2002

Abstract

A theoretical model of collisional quantum interference (CQI) is developed in a diatom-diatom system based on the first-order Born approximation of time-dependent perturbation theory and the multipolar interaction potential. The transition cross section is obtained. The relations between the differential and integral interference angles are discussed. The key factors on the determination of the differential and integral interference angles are obtained. The changing tendency of the interference angles with the experimental temperatures is obtained.

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