arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1211.2181cond-mat.stat-mechmath-phmath.MP
收藏

具有记忆的非平衡扩散的涨落-响应关系

Fluctuation-response relations for nonequilibrium diffusions with memory

C. Maes, S. Safaverdi, P. Visco, F. van Wijland

摘要:

与其他粒子的强相互作用或来自介质对布朗粒子的反馈使有效动力学具有记忆效应。讨论了涨落耗散定理在具有记忆的非平衡Langevin系统中的推广。一个重要的应用是扩展萨瑟兰-爱因斯坦之间的关系扩散和流动性。非平衡修正包括动力学活动和粒子速度之间的时间相关性,这反过来又导致了关于驱动力和粒子位移之间的相关性的信息。

英文摘要:

Strong interaction with other particles or feedback from the medium on a Brownian particle entail memory effects in the effective dynamics. We discuss the extension of the fluctuation-dissipation theorem to nonequilibrium Langevin systems with memory. An important application is to the extension of the Sutherland-Einstein relation between diffusion and mobility. Nonequilibrium corrections include the time-correlation between the dynamical activity and the velocity of the particle, which in turn leads to information about the correlations between the driving force and the particle's displacement.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑