TY - JOUR
T1 - Pattern formation in self-propelled particles with density-dependent motility
AU - Farrell, F. D.C.
AU - Marchetti, M. C.
AU - Marenduzzo, D.
AU - Tailleur, J.
PY - 2012/6/15
Y1 - 2012/6/15
N2 - We study the behavior of interacting self-propelled particles, whose self-propulsion speed decreases with their local density. By combining direct simulations of the microscopic model with an analysis of the hydrodynamic equations obtained by explicitly coarse graining the model, we show that interactions lead generically to the formation of a host of patterns, including moving clumps, active lanes, and asters. This general mechanism could explain many of the patterns seen in recent experiments and simulations.
AB - We study the behavior of interacting self-propelled particles, whose self-propulsion speed decreases with their local density. By combining direct simulations of the microscopic model with an analysis of the hydrodynamic equations obtained by explicitly coarse graining the model, we show that interactions lead generically to the formation of a host of patterns, including moving clumps, active lanes, and asters. This general mechanism could explain many of the patterns seen in recent experiments and simulations.
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U2 - 10.1103/PhysRevLett.108.248101
DO - 10.1103/PhysRevLett.108.248101
M3 - Article
AN - SCOPUS:84862515326
SN - 0031-9007
VL - 108
JO - Physical Review Letters
JF - Physical Review Letters
IS - 24
M1 - 248101
ER -