Transport of overdamped Brownian particles in a two-dimensional tube: Nonadiabatic regime

Abstract

Transport of overdamped Brownian particles in a two-dimensional asymmetric tube is investigated in the presence of nonadiabatic periodic driving forces. By using Brownian dynamics simulations we can find that the phenomena in nonadiabatic regime differ from that in adiabatic case. The direction of the current can be reversed by tuning the driving frequency. Remarkably, the current as a function of the driving amplitude exhibits several local maxima at finite driving frequency.

10 pages, 4 figures

References in corpus (4)

• Artificial Brownian motors: Controlling transport on the nanoscale
• Entropic transport: Kinetics, scaling and control mechanisms
• Current in a three-dimensional periodic tube with unbiased forces
• ac-driven Brownian motors: a Fokker-Planck treatment

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• Enhancement of the longitudinal transport by a weakly transversal drive
• Interacting Brownian particles exhibiting enhanced rectification in an asymmetric channel
• Competition between ac driving-forces and Lévy flights in a nonthermal ratchet
• Collective Transport of Lennard-Jones Particles through One-Dimensional Periodic Potentials