Continuum Theory of Phase Separation Kinetics for Active Brownian Particles
Continuum Theory of Phase Separation Kinetics for Active Brownian Particles
Active Brownian particles (ABPs), when subject to purely repulsive interactions, are known to undergo activity-induced phase separation broadly resembling an equilibrium (attraction-induced) gas-liquid coexistence. Here we present an accurate continuum theory for the dynamics of phase-separating ABPs, derived by direct coarse-graining, capturing leading-order density gradient terms alongside an effective bulk …