arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0810.0774cond-mat.softcond-mat.stat-mech
收藏

非平衡环境中布朗粒子的输运和双稳态动力学

Transport and bistable kinetics of a Brownian particle in a nonequilibrium environment

Jyotipratim Ray Chaudhuri, Suman Kumar Banik, Sudip Chattopadhyay, Pinaki Chaudhury

摘要:

提出了一个系统库模型,其中关联库由外部有色随机力调制,研究了过阻尼布朗粒子在周期势场中的输运。然后,我们推导出的平均速度,流动性和扩散率的解析表达式。研究了过阻尼区的双稳态动力学和从亚稳态的逃逸率。通过数值模拟,我们证明了我们的解析逃逸率与数值结果是一致的。

英文摘要:

A system reservoir model, where the associated reservoir is modulated by an external colored random force, is proposed to study the transport of an overdamped Brownian particle in a periodic potential. We then derive the analytical expression for the average velocity, mobility, and diffusion rate. The bistable kinetics and escape rate from a metastable state in the overdamped region are studied consequently. By numerical simulation we then demonstrate that our analytical escape rate is in good agreement with that of numerical result.

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。

↑