The differential interference angle in collisional quantum interference on rotational energy transfer

• 来源期刊: 中国物理B(英文版)
• 关键词: rotational energy transfer differential interference angle collision parameter
• 年，卷（期）: 2008,（6）
• 页码范围: 2078-2084
• 页数: 7页
• 语种: 英文

摘要

Collisional quantum interference (CQI) in the intramolecular rotational energy transfer was observed in experiment by Sha and co-workers.[1] The interference angle, which measuring the degree of the coherence, were measured in the experiment of the static cell. Based on the first Born approximation of time dependent perturbation theory, taking into accounts the anisotropic Lennard-Jones interaction potentials, this paper describes the theoretical model of CQI in intramolecular rotational energy transfer in an atom-diatom collision system. In the model, the differential interference angle for the experiment of the molecular beam is calculated, the changing tendencies of the differential interference angle with the impact parameter and collision partners are obtained. This theoretical model is important for understanding or performing this kind of experiments.