郑州大学学报（理学版）2012，Vol.44Issue(4)：73-77,5.DOI:10.3969/j.issn/1671-6841.2012.04.016
棘轮势作用下布朗马达的反馈控制模型
A Feedback-controlled Model of Brownian Motors in Ratchet Potential
摘要
Abstract
A model of Brownian motor in period ratchet potential under a feedback control was studied, which changed the surrounding temperature according to the particle' s force. By numerical simulations, the directed current was obtained. When β < 1 (the ratio of switching temperature) , the current was always negative, but when β > 1, the current was correlated to the asymmetry of the potential in value and direction. The results showed that the direction of the current was the competition of thermal motion and the potential energy.关键词
反馈控制/布朗马达/棘轮势Key words
feedback control/ Brownian motor/ ratchet potential分类
数理科学引用本文复制引用
张红卫,文书堂,张海涛,李玉晓..棘轮势作用下布朗马达的反馈控制模型[J].郑州大学学报（理学版）,2012,44(4):73-77,5.基金项目
河南省科技厅基础与前沿技术研究计划资助项目,编号092300410142. （）
