Active Matter Near Boundaries


Overview

Self-propelled particles — bacteria, say — behave very differently near walls than in open space. We derive Fokker–Planck and coarse-grained hydrodynamic theory for active particles in 2D wedge confinement and predict power-law density and current modulations set purely by the boundary geometry.

We verify the analytic scaling with parallel Langevin-dynamics simulations on a computing cluster.

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