Collective shuttling of attracting particles in asymmetric narrow channels

Abstract

The rectification of a single file of attracting particles subjected to a low frequency ac drive is proposed as a working mechanism for particle shuttling in an asymmetric narrow channel. Increasing the particle attraction results in the file condensing, as signalled by the dramatic enhancement of the net particle current. Magnitude and direction of the current become extremely sensitive to the actual size of the condensate, which can then be made to shuttle between two docking stations, transporting particles in one direction, with an efficiency much larger than conventional diffusive models predict.

References in corpus (3)

• Artificial Brownian motors: Controlling transport on the nanoscale
• Screened hydrodynamic interaction in a narrow channel
• Single File Diffusion enhancement in a fluctuating modulated 1D channel

Cited by in corpus (4)

• Modelling the formation of structured deposits at receding contact lines of evaporating solutions and suspensions
• Ratcheting of driven attracting colloidal particles: Temporal density oscillations and current multiplicity
• Stochastic pump of interacting particles
• Interacting single-file system: Fractional Langevin formulation versus diffusion-noise approach