Escape rate of an active Brownian particle in a rough potential

作     者：Yating Wang Zhanchun Tu Yating Wang;Zhanchun Tu

作者机构：Department of PhysicsBeijing Normal UniversityBeijing 100875China 

出 版 物：《Communications in Theoretical Physics》 (理论物理通讯（英文版）)

年 卷 期：2022年第74卷第12期

页      面：118-123页

核心收录：

学科分类：07[理学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

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

主　　题：escape rate active Brownian particle rough potential effective potential 

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.