Escape rate of an active Brownian particle in a rough potential  

作　　者：Yating Wang Zhanchun Tu 

机构地区：[1]Department of Physics,Beijing Normal University,Beijing 100875,China

出　　处：《Communications in Theoretical Physics》2022年第12期118-123,共6页理论物理通讯（英文版）

基　　金：the National Natural Science Foundation of China(Grant No.11975050 and No.11735005)

摘　　要：We discuss the escape problem with the consideration of both the activity of particles and the roughness of potentials.We derive analytic expressions for the escape rate of an active Brownian particle in two types of rough potentials by employing the effective equilibrium approach and the Zwanzig method.We find that activity enhances the escape rate,but both the oscillating perturbation and the random amplitude hinder escaping.

关 键 词：escape rate active Brownian particle rough potential effective potential 

分 类 号：O572.2[理学—粒子物理与原子核物理]