摘要
本文综述了近十几年来关于势能面上反应途径分叉研究的进展状况；概述了势能面上反应途径的类型及其拓扑结构；分析了势能面上反应途径分叉的理论；讨论了因分叉而引起的化学反应以及体系的对称性破缺；研究了因振动模间的非线性耦合而引起的分叉对化学反应以及分子体系红外光谱异常和粒子数反转的影响．因而研究分叉现象在理论和实践上都具有重要意义．
Abstract This review covers research into the bifurcation on potential energy surface (PES) for nearly 20 years. The theory of PES bifurcation and its application have been discussed. The study ofthe PES bifurcation, which leads to new chemical reactions, breaking syTnmetry, anomal iRabsorption and relatation in microwave laser, helps us to recognize the complexity of PES, underStand the laws of reactive dynamics and reconsider the known reaction selective rules. Moreattention has focused on the static bimrcation of PES, and the dynamic process has not beenanalyzed.
