Wed, 25/05/2016 - 11:00
Campus Saarbrücken, Geb. E2 6, 4.18

Dr. Adam Wysocki
Host: Prof. Dr. Heiko Rieger
Institute of Complex Systems, Forschungszentrum Jülich

Propagating interfaces in mixtures of active and passive Brownian particles

The emergent collective dynamics in phase-separated mixtures of isometric active and passive Brownian particles is studied numerically in 2D. A novel steady-state of well-defined propagating interfaces is observed, where the interface between the dense and the dilute phase propagates and the bulk of both phases is at rest. Two kind of interfaces, advancing and receding, are formed by spontaneous symmetry breaking, induced by an instability of a planar interface due to the formation of localized vortices. The propagation arises due to flux imbalance at the interface, resembling the growth behavior of rough surfaces far from equilibrium.

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