Ratchet transport of interacting particles

TL;DR

This paper investigates how interacting particles move in asymmetric structures under monochromatic driving, revealing that interactions can enhance ratchet flow and lead to turbulence, with a kinetic theory explaining these phenomena.

Contribution

It provides a combined analytical and numerical study of ratchet transport with a kinetic theory that describes both weak and strong interaction regimes.

Findings

Ratchet flow persists and can be amplified with strong interactions.

Turbulence can emerge in the ratchet flow under specific conditions.

Kinetic theory accurately models the observed regimes.

Abstract

We study analytically and numerically the ratchet transport of interacting particles induced by a monochromatic driving in asymmetric two-dimensional structures. The ratchet flow is preserved in the limit of strong interactions and can become even stronger compared to the non-interacting case. The developed kinetic theory gives a good description of these two limiting regimes. The numerical data show emergence of turbulence in the ratchet flow under certain conditions.