Looking Back: Field theory of transiently chiral active particles

TL;DR

This paper develops a field theory for transiently chiral active particles, enabling the calculation of their mean squared displacement and orientation-based observables, revealing insights into their transient chiral behavior.

Contribution

It introduces a novel Doi-Peliti field theory framework for modeling transiently chiral active particles with reorientation dynamics.

Findings

Derived mean squared displacement for different initial conditions

Quantified transient chiral behavior through orientation observables

Provided analytical tools for studying active Brownian particles with tumbling

Abstract

We derive a Doi-Peliti Field Theory for transiently chiral active particles in two dimensions, that is, active Brownian particles that undergo tumbles via a diffusing reorientation angle. Using this framework, we compute the mean squared displacement for both uniformly distributed and fixed initial reorientations. We also calculate an array of orientation-based observables, to quantify the transiently chiral behaviour observed.