Active particles with broken symmetry.
We discuss and analyze the driving a polar active particle with a head-tail asymmetry based on the dynamics of an internal motor variable driven by an energy depot and a broken symmetry of friction with respect to the internal degree of freedom. We show that such a driving may be advantageous for driving large masses with small energy uptake from the environment and exhibits interesting properties such as resonance-driven optimal propulsion.
Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Strasse 38, 01187 Dresden, Germany.
Pawel
P
Romanczuk
Werner
W
Ebeling
Udo
U
Erdmann
Lutz
L
Schimansky-Geier
D003198:Computer Simulation; D004058:Diffusion; D004735:Energy Transfer; D008956:Models, Chemical; D015233:Models, Statistical; D009038:Motion; D010316:Particle Size; D013269:Stochastic Processes