Speaker
Description
Active Brownian particles (ABPs) provide a minimal model for exploring collective dynamics in active matter. Recent studies suggest that active particle could have interesting elastic properties. While many continuum descriptions have been developed at the hydrodynamic scale, particle-scale mean-field approaches are more suitable for capturing emergent elastic properties. Motivated by this, we employ dynamical density functional theory (DDFT) to construct a continuum model with a structure similar to the phase field crystal framework, aiming to describe ABP behavior near the onset of clustering. Molecular dynamics simulations are carried out both to obtain pair distribution functions which used to determine effective interaction parameters in the theory.