物理学报2025，Vol.74Issue(17)：34-41,8.DOI:10.7498/aps.74.20250689
非互易耦合布朗粒子的定向输运
Directional transport of non-reciprocal coupled Brownian particles
摘要
Abstract
In recent years,the physics of systems with non-reciprocal interactions has received increasing attention.Systems with non-reciprocal interactions are existent in soft matters,active matters,as well as biological and artificial nanoscale systems.The directional transport of coupled Brownian particles with nonreciprocal interactions is investigated by establishing a nonreciprocal coupled Brownian ratchet model.The effects of parameters such as the coupling free length,thermal noise intensity,and the ratio of nonreciprocal coupling strength coefficients on the directional transport of ratchets are systematically examined in this work. The research result reveals that the flow reversal of particles can be induced by adjusting the coupling free length.Meanwhile,there exists an optimal ratio of coupling strength coefficients that maximizes the directional transport of the nonreciprocally coupled Brownian particles.These findings demonstrate that the nonreciprocal interactions indeed enhance the directional transport of coupled system.Additionally,directional transport control can be achieved by modulating parameters such as thermal noise intensity,asymmetry coefficient,and external potential barrier height.Future research may further explore the dynamical mechanisms of nonreciprocal interactions in complex environments,especially the swarm behaviors in many-particle systems.Furthermore,by combining relevant experimental and theoretical studies,deeper insights can be gained into the regularity and universality of non-reciprocal interactions in both natural and artificial nanoscale systems.关键词
非互易相互作用/耦合布朗粒子/质心平均速度/流反转Key words
non-reciprocal interaction/coupled Brownian particles/center-of-mass mean velocity/current reversal引用本文复制引用
付天琦,申伯洋,马欣然,黄仁忠,范黎明,艾保全,高天附,郑志刚..非互易耦合布朗粒子的定向输运[J].物理学报,2025,74(17):34-41,8.基金项目
国家自然科学基金(批准号:12375031,11875135)和沈阳师范大学研究生教育教学改革研究一般项目(批准号:YJSJG320240062)资助的课题. Project supported by the National Natural Science Foundation of China(Grant Nos.12375031,11875135)and the Postgraduate Education Reform Project of Shenyang Normal University,China(Grant No.YJSJG320240062). （批准号:12375031,11875135）
