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Density-Dependent Self-Diffusion of Active Brownian Particles

Kinetic-theory description of how finite density reduces the long-time self-diffusion of Active Brownian Particles: collisions renormalize the self-propulsion into a density-dependent effective streaming velocity and anisotropic diffusion, giving an effective long-time diffusion coefficient valid up to an area fraction near 0.42.

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Self-diffusive dynamics of active Brownian particles at moderate densities Rodrigo Sotoa)

Studies how finite density changes the self-diffusion of Active Brownian Particles (ABPs) - self-propelled particles moving at constant speed V with orientation randomized by rotational diffusion Dr,…