The average velocity of self-propelled particles in a two-dimensional potential with colored noise

TL;DR

This paper investigates how colored noise influences the average velocity and current reversal phenomena of self-propelled particles in a 2D potential, revealing optimal parameters for maximum velocity and the effects of different noise types.

Contribution

It provides new insights into the effects of colored noise on particle transport and identifies optimal conditions for maximizing average velocity in self-propelled particle systems.

Findings

Current reversal with changing x-direction noise intensity.

Existence of optimal parameters for maximum velocity.

Y-direction noise influences x-velocity but does not induce transport.

Abstract

The average velocity of self-propelled particles in a two-dimensional potential with colored noise is investigated. The current reversal phenomenon appear with changing x direction colored noise intensity. There exist optimal values of the parameters at which the average velocity takes its maximal value. The y direction noise and the self-propelled angle noise have great effects on the x direction average velocity, but they can not induce x direction particles transport phenomenon themselves.