Title: Density functional theory of active matter

Speaker: Hartmut Löwen (Heinrich-Heine Universität Düsseldorf)

Abstract:

The collective behavior of active particles represents a fascinating part of nonequilibrium many-body physics with a wealth of phenomena like swarming, activity-induced phase separation and active turbulence. In this talk we propose a (dynamical) density functional theory (DDFT) based on the individual active Brownian particles. Hydrodynamic interactions between the particles mediated by fluid flow are incorporated such that pushers, pullers and neutral swimmers can be distinguished within the DDFT. As an example, the theory predicts a hydrodynamic pumping state in confined active suspensions both for linear swimmers and circle swimmers. Also global alignment in pusher-puller mixtures will be discussed.

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