A microscopic field theoretical approach for binary mixtures of active and passive particles

TL;DR

This paper introduces a continuum phase field crystal model for binary mixtures of active and passive particles, successfully reproducing experimental and simulation results across various densities.

Contribution

It presents a novel microscopic field theoretical approach that unifies the description of active-passive particle mixtures within a continuum framework.

Findings

Reproduces experimental results for active-passive mixtures

Matches agent-based simulation outcomes across densities

Validates the continuum model for diverse system states

Abstract

We consider a phase field crystal modeling approach for binary mixtures of interacting active and passive particles. The approach allows to describe generic properties for such systems within a continuum model. We validate the approach by reproducing experimental results, as well as results obtained with agent-based simulations, for the whole spectrum from highly dilute suspensions of passive particles to interacting active particles in a dense background of passive particles.