Journal
NEW JOURNAL OF PHYSICS
Volume 21, Issue -, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1367-2630/aaf776
Keywords
polar active matter; microswimmers; Vicsek model; band formation; directed transport; moving substrate; pinned/sliding phase
Categories
Ask authors/readers for more resources
Following the goal of using active particles as targeted cargo carriers aimed, for example, to deliver drugs towards cancer cells, the quest for the control of individual active particles with external fields is among the most explored topics in active matter. Here, we provide a scheme allowing to control collective behaviour in active matter, focusing on the fluctuating band patterns naturally occurring e.g. in the Vicsek model. We show that exposing these patterns to a travelling wave potential tames them, yet in a remarkably nontrivial way: the bands, which initially pin to the potential and comove with it, upon subsequent collisions, self-organize into a macroband, featuring a predictable transport against the direction of motion of the travelling potential. Our results provide a route to simultaneously control transport and structure, i.e. micro- versus macrophase separation, in polar active matter.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available