Upper bound for the time derivative of entropy for a dynamical system driven by coloured cross-correlated white noises

• 来源期刊: 中国物理（英文版）
• 关键词: information entropy coloured cross-correlation Fokker-Planck equation
• 年，卷（期）: 2005,（9）
• 页码范围: 1766-1769
• 页数: 4页
• 语种: 英文

摘要

It is shown how the cross-correlation time and strength of coloured cross-correlated white noises can set an upper bound for the time derivative of entropy in a nonequilibrium system. The value of upper bound can be calculateddirectly based on the Schwartz inequality principle and the Fokker-Planck equation of the dynamical system driven by coloured cross-correlated white noises. The present calculations can be used to interpret the interplay of the dissipative constant and cross-correlation time and strength of coloured cross-correlated white noises on the upper bound.