主講人：任維清（新加坡國立大學副教授）
時間：2015年7月14日（周二）上午（10：30—11：30）
地點：北院卓遠樓305
主辦單位：統(tǒng)計與數(shù)學學院
報告題目: The String Method for the Study of Rare Event
報告摘要: The dynamics of complex systems is often driven by rare but important events. Well known examples include nucleation events during phase transitions, conformational changes of macromolecules, and dislocation dynamics in crystalline solids etc. The main objects of interest in these problems are the transition mechanism and transition rate. In this talk, I will present mathematical theory and numerical methods (the string method) for the study of such rare event. The string method finds the minimum energy path - the most likely transition path in the small-noise limit - by evolving a curve in the path space by the steepest descent dynamics. I also show how the string method can be used to search saddle points (i.e. transition states) around a given minimum on potential or free energy surfaces.
個人簡介：任維清老師系新加坡國立大學副教授，他于2002年在美國紐約大學Courant 研究所獲得博士學位。關于任維清老師的詳細介紹，請訪問他的個人主頁：http://www.math.nus.edu.sg/~matrw/ 。
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