物理学报Issue(16)：1-8,8.DOI:10.7498/aps.63.160502
系统非对称性及记忆性对布朗马达输运行为的影响
Influences of the system symmetry and memory on the transp ort b ehavior of Brownian motor
摘要
Abstract
Based on the research on transport phenomenon of fractional Brownian motor, a systematic parameter (i.e. sym-metry parameter) which describes the asymmetry of the periodic potential field is introduced, and the influences of the symmetry parameter and the memory parameter (i.e. the fractional order) on the transport behavior are also investigat-ed. The numerical results show that the combined effect of fractional order and symmetry parameter can result in the reverse flow of Brownian particle’s transport, and the fractional order corresponding to the maximal averaged velocity is irrelevant to the frequency of the external periodic force, but it will still increase monotonically as the symmetry parameter increases.关键词
分数阶布朗马达/记忆性介质/非对称性/定向输运Key words
fractional Brownian motor/memorable medium/asymmetry/directed transport引用本文复制引用
王飞,谢天婷,邓翠,罗懋康..系统非对称性及记忆性对布朗马达输运行为的影响[J].物理学报,2014,(16):1-8,8.基金项目
国家自然科学基金(批准号:11171238)和电子信息控制重点实验室基金(批准号:2013035)资助的课题.* Project supported by the National Natural Science Foundation of China (Grant No.11171238) and the Foundation of Science and Technology on Electronic Information Control Laboratory, China (Grant No.2013035) （批准号:11171238）
