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Influence of sensorial delay on clustering and swarming

Journal article
Authors Rafal Piwowarczyk
Martin Selin
T. Ihle
Giovanni Volpe
Published in Physical Review E
Volume 100
Issue 1
ISSN 2470-0045
Publication year 2019
Published at Department of Physics (GU)
Language en
Links dx.doi.org/10.1103/PhysRevE.100.012...
Keywords collective behavior, phase-transition, motion, Physics
Subject categories Physical Sciences

Abstract

We show that sensorial delay alters the collective motion of self-propelling agents with aligning interactions: In a two-dimensional Vicsek model, short delays enhance the emergence of clusters and swarms, while long or negative delays prevent their formation. In order to quantify this phenomenon, we introduce a global clustering parameter based on the Voronoi tessellation, which permits us to efficiently measure the formation of clusters. Thanks to its simplicity, sensorial delay might already play a role in the organization of living organisms and can provide a powerful tool to engineer and dynamically tune the behavior of large ensembles of autonomous robots.

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