Bulletin of the American Physical Society
APS March Meeting 2021
Volume 66, Number 1
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session M05: Active Matter in Complex Environments IV
11:30 AM–2:18 PM,
Wednesday, March 17, 2021
Room: 05
Sponsoring
Unit:
DSOFT
Chair: Tapomoy Bhattacharjee, Princeton University; Sujit Datta, Princeton University
Abstract: M05.00005 : Conserved Quantities and Structural States in Active Systems
12:42 PM–12:54 PM
Live
Presenter:
Yuval Shoham
(Tel Aviv University)
Author:
Yuval Shoham
(Tel Aviv University)
We analyze a few setups via theory and simulations, starting from two swimmers - showing that the angle between them is conserved, scaling up to several swimmers and eventually to a large collection of particles. We study perturbations to a line of oriented swimmers (a "street" of swimmers) with either (a) a single swimmer deviating from the centerline resulting in a propagating wavefront with predictable velocity, or (b) wave deformation resulting in breakage into sub-streets that maintain their shape for an extended period.
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