Steering chiral active Brownian motion via stochastic position-orientation resetting

TL;DR

This paper demonstrates that stochastic position-orientation resetting can control and optimize the transport properties of chiral active Brownian particles by interrupting circular motion, creating tunable dynamical states.

Contribution

It introduces a resetting protocol to manipulate chiral active Brownian motion, revealing new dynamical states and transitions not present in non-chiral systems.

Findings

Resetting induces non-monotonic MSD behavior.

Three distinct dynamical states identified: activity-dominated and two resetting-dominated.

Chirality enriches the dynamical landscape, enabling tunable transport modes.

Abstract

Guiding active motion is important for targeted delivery, sensing, and search tasks. Many active systems exhibit circular swimming, ubiquitous in chemical, physical, and biological systems, that biases motion and reduces transport efficiency. We show that stochastic position-orientation resetting can overcome these limitations in two-dimensional chiral active Brownian particles by interrupting circular motion, resulting in tunable dynamics. When resets are infrequent compared to chiral rotation, the steady-state mean-squared displacement varies non-monotonically with rotational diffusion. Steady state excess kurtosis and orientation autocorrelation yields spatiotemporal state diagram comprising three states: an activity-dominated chiral state, and two resetting-dominated states with and without chiral rotation; in contrast, the achiral(or non-chiral) counterpart supports only the resetting-dominated state without chiral rotation. Chirality thus enriches the dynamical landscape, enabling tunable transitions between transport modes absent in achiral systems. A simple reset protocol can therefore transform chiral active dynamics and offer a practical strategy for optimizing search and transport in circle swimmers.