A UNIFIED DESCRIPTION OF TIME DEPENDENCE OF INFORMATION ENTROPY PRODUCTION AND FLUX IN THERMAL BROADBAND NOISE-DRIVEN DYNAMICAL SYSTEMS

作者：Majee Pradip; Goswami Gurupada; Barik Debashis; Bag Bidhan Chandra^*

来源：International Journal of Modern Physics B, 2009, 23(18): 3587-3600.

DOI：10.1142/S0217979209052704

• Information entropy
• entropy production
• broadband noise
• nonequilibrium constraint

In this paper we have studied the dynamics of thermal broadband noise-driven dynamical system in terms of information entropy at both the nonstationary and stationary states. Here, a unified description of fluctuating force is considered in a thermodynamically closed system. Based on the Fokker-Planck description of stochastic processes and the entropy balance equation, we have calculated the time-dependence of the information entropy production and entropy flux in the presence and absence of nonequilibrium constraint. Our calculation considers how the time evolution of these quantities is affected if the characteristic of noise changes from white to red or green and red to green in a unified scheme.

• 出版日期2009-7-20