title: Enhancement of the longitudinal transport by a weakly transversal drive.
abstract: Transport of Brownian particles in a two-dimensional asymmetric tube is investigated by applying a polarized field. From the Brownian dynamics simulations, we find that the longitudinal current can be enhanced remarkably by applying a weakly transversal drive. Multiple current reversals can be realized by altering the driving frequency of the polarized field. By coupling the longitudinal and transversal forces together, one can control the particle transport flexibly.
authors.affiliation: Laboratory of Quantum Information Technology, ICMP and SPTE, South China Normal University, 510006 Guangzhou, China and College of Physics Science and Technology, Hebei University, 071002 Baoding, China. heyf@hbu.edu.cn
authors.forename: Yafeng
authors.initials: Y
authors.lastname: He
authors.forename: Bao-Quan
authors.initials: BQ
authors.lastname: Ai