物理学报Issue(7)：1-6,6.DOI:10.7498/aps.64.070501
非对称耦合粒子链在棘齿势中的确定性定向输运
Deterministic directional transport of asymmetrically coupled nonlinear oscillators in a ratchet potential
摘要
Abstract
In the absence of external force and noise, a deterministic transport model for asymmetrically coupled nonlinear oscillators in a ratchet potential is established. By numerical simulation, both directed current and reversely directed current can be obtained by selecting appropriate parameters. The complex dependences of current velocity on the model parameters are discussed. It is observed that the average velocity of the particle chain varies non-monotonically with coupling strength and potential height, indicating a generalized resonance phenomenon. When the other parameters are fixed, the speed curve which is dependent on spring free length has a roughly inverse symmetry, and there also exists a generalized multi-peak resonance.关键词
非对称耦合/棘齿势/确定性定向输运/广义共振Key words
asymmetrically coupled/ratchet potential/deterministic directional transport/generalized resonance引用本文复制引用
季袁冬,屠浙,赖莉,罗懋康..非对称耦合粒子链在棘齿势中的确定性定向输运[J].物理学报,2015,(7):1-6,6.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项目(批准号:2013035)资助的课题 （批准号:11171238）
