Time Dependence of Entropy Flux and Entropy Production of a Dissipative Dynamical System Driven by Non-Gaussian Noise  

作　　者：GUO Yong-Feng XU Wei LI Dong-Xi XIE Wen-Xian 

机构地区：[1]Department of Applied Mathematics, Northwestern Polytechnical University, Xi＇an 710072, China

出　　处：《Communications in Theoretical Physics》2008年第6期1561-1566,共6页理论物理通讯（英文版）

基　　金：National Natural Science Foundation of China under Grant Nos.10472091,10332030,and 10502042

摘　　要：A stochastic dissipative dynamical system driven by non-Gaussian noise is investigated. A general approximate Fokker-Planck equation of the system is derived through a path-integral approach. Based on the definition of Shannon＇s information entropy, the exact time dependence of entropy flux and entropy production of the system is calculated both in the absence and in the presence of non-equilibrium constraint. The present calculation can be used to interpret the interplay of the dissipative constant and non-Gaussian noise on the entropy flux and entropy production.

关 键 词：information entropy entropy flux and entropy production non-Gaussian noise Fokker-Planck equation 

分 类 号：O414[理学—理论物理]