Transport of finite size self-propelled particles confined in a [formula omitted] zigzag channel with Gaussian colored noise

Abstract

The transport of finite size self-propelled Brownian particles confined in a 2D zigzag channel with colored noise is investigated. The noises(noise parallel to x-axis and y-axis), the asymmetry parameter Δk, the ratio f(ratio of the particle radius and the bottleneck half width), the self-propelled speed v0 have joint effect on the particles. The average velocity 〈V〉 and diffusion coefficient D of self-propelled particles are significantly different from passive particles. 〈V〉 and D exhibit complicated behavior with increasing asymmetry parameter Δk.