Active Brownian particles at interfaces: An effective equilibrium approach

Abstract

A simple theoretical approach is used to investigate active colloids at the free interface and near repulsive substrates. We employ dynamical density functional theory to determine the steady-state density profiles in an effective equilibrium system [Farage et al., Phys. Rev. E, 91 (2015) 042310]. In addition to the known accumulation at surfaces, we predict wetting and drying transitions at a flat repulsive wall and capillary condensation and evaporation in a slit pore. These new phenomena are closely related to the motility-induced phase separation (MIPS) in the bulk.

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Cited by in corpus (6)

• Escape rate of active particles in the effective equilibrium approach
• Phase coexistence of active Brownian particles
• The entropy production of an active particle in a box
• Effective equilibrium states in mixtures of active particles driven by colored noise
• Time-dependent properties of interacting active matter: dynamical behavior of one-dimensional systems of self-propelled particles
• Static Structure of Active Brownian Hard Disks