Analytical Solutions of a Model for Brownian Motion in the Double Well Potential  

作　　者：刘爱洁 郑连存 马连喜 张欣欣 

机构地区：[1]School of Mathematics and Physics University of Science and Technology Beijing [2]Department of Physics Blinn College

出　　处：《Communications in Theoretical Physics》2015年第1期51-56,共6页理论物理通讯（英文版）

基　　金：Supported by National Natural Science Foundation of China under Grant Nos.51276104,51476191

摘　　要：In this paper, the analytical solutions of Schrodinger equation for Brownian motion in a double well potential are acquired by the homotopy analysis method and the Adomian decomposition method. Double well potential for Brownian motion is always used to obtain the solutions of Fokker-P1anck equation known as the Klein-Kramers equation, which is suitable for separation and additive Hamiltonians. In essence, we could study the random motion of Brownian particles by solving Schr6dinger equation. The anaiytical results obtained from the two different methods agree with each other well The double well potentiai is affected by two parameters, which are analyzed and discussed in details with the aid of graphical illustrations. According to the final results, the shapes of the double well potential have significant influence on the probability density function.

关 键 词：Brown motion homotopy analysis method Schrodinger equation double well potential 

分 类 号：O552.1[理学—热学与物质分子运动论] O413.1[理学—物理]