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Steering chiral active Brownian motion via stochastic position-orientation resetting
1University of Vermont, Department of Physics, Burlington, Vermont 05405, USA.
Physical Review. E
|March 20, 2026
Summary
Stochastic resetting can control circular motion in chiral active particles. This method tunes particle dynamics, enhancing transport efficiency for applications like targeted delivery and search tasks.
Area of Science:
- Physics
- Statistical Mechanics
- Soft Matter
Background:
- Active systems often exhibit circular swimming, limiting transport efficiency.
- Chiral active Brownian particles display biased motion due to inherent asymmetry.
Purpose of the Study:
- Investigate the impact of stochastic position-orientation resetting on chiral active particle dynamics.
- Determine if resetting can overcome limitations imposed by circular motion and enhance transport.
Main Methods:
- Simulated two-dimensional chiral active Brownian particles.
- Implemented stochastic position-orientation resetting protocols.
- Analyzed steady-state mean-squared displacement, excess kurtosis, and orientation autocorrelation.
Main Results:
- Stochastic resetting effectively interrupts circular motion, enabling tunable dynamics.
- Mean-squared displacement shows non-monotonic dependence on rotational diffusion for infrequent resets.
- A spatiotemporal state diagram reveals three distinct states influenced by activity, chirality, and resetting.
Conclusions:
- Chirality enriches the dynamical landscape, allowing tunable transitions between transport modes.
- Resetting protocols can transform chiral active dynamics, optimizing search and transport.
- This strategy offers practical solutions for enhancing efficiency in micro- and nanomachines.
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