物理学报Issue(15)：1-7,7.DOI:10.7498/aps.62.150502
分数阶布朗马达在闪烁棘齿势中的合作输运现象*
Transport properties of fractional coupled Brownian motors in flash ratchet potential*
摘要
Abstract
Based on the fractional calculus theory, the transport model of fractional coupled Brownian motors in flashing ratchet potential is established. Using the fractional difference, the numerical solution of the model is obtained, and the directional transport properties at various parameters are investigated. Numerical results show that in fractional ratchet system, the fractional order and spring constant not only affect the transport velocity of the particles, but also reverse the current direction. Moreover, when the fractional order is fixed, the generalized stochastic resonance phenomena are observed in the mean transport velocity as the noise density, spring constant or the depth of the ratchet potential varies.关键词
分数阶布朗马达/闪烁棘齿势/合作定向输运/广义随机共振Key words
fractional Brownian motors/flashing ratchet potential/coupled directed transport/generalized stochas-tic resonance引用本文复制引用
赖莉,周薛雪,马洪,罗懋康..分数阶布朗马达在闪烁棘齿势中的合作输运现象*[J].物理学报,2013,(15):1-7,7.基金项目
国家自然科学基金(批准号:11171238)资助的课题.* Project supported by the National Natural Science Foundation of China (Grant No.11171238) （批准号:11171238）
