TY  - JOUR
AU  - Wysocki, Adam
AU  - Winkler, Roland G.
AU  - Gompper, Gerhard
TI  - Propagating interfaces in mixtures of active and passive Brownian particles
JO  - New journal of physics
VL  - 18
IS  - 12
SN  - 1367-2630
CY  - [Bad Honnef]
PB  - Dt. Physikalische Ges.
M1  - FZJ-2017-00315
SP  - 123030
PY  - 2016
AB  - The emergent collective dynamics in phase-separated mixtures of isometric active and passive Brownian particles is studied numerically in two-dimensions. 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 (nearly) 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. Above a threshold, the interface velocity decreases linearly with increasing fraction of active particles.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000391599100003
DO  - DOI:10.1088/1367-2630/aa529d
UR  - https://juser.fz-juelich.de/record/826046
ER  -