Feedback control of two-headed Brownian motors in flashing ratchet potential

作     者：赵阿可 张红卫 李玉晓 

作者机构：College of Physics and Electric Information Luoyang Normal University Luoyang 471022 China School of Physics and Engineering Zhengzhou University Zhengzhou 450052 China Department of Physics Zhengzhou Normal University Zhengzhou 450044 China 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2010年第19卷第11期

页      面：174-178页

核心收录：

学科分类：07[理学] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0802[工学-机械工程] 0835[工学-软件工程] 0704[理学-天文学] 0702[理学-物理学] 080201[工学-机械制造及其自动化] 

主　　题：Brownian motors ratchet current efficiency 

摘      要：We presented a detailed investigation on the movement of two-headed Brownian motors in an asymmetric potential under a feedback control. By numerical simulations the direct current is obtained. The current is periodic in the initial length of spring. There is an optimal value of the spring constant. And the dependence of the current on the opposing force is reversed. Then we found that when the change of the temperature and the opposing force have optimal values, the Brownian motors can also obtain the optimal efficiency.