Motility-induced clustering of active particles under soft confinement

Fuente: arXiv
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Auteurs principaux: Knippenberg, Timo, Jayaram, Ashreya, Speck, Thomas, Bechinger, Clemens
Format: Preprint
Publié: 2023
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author Knippenberg, Timo
Jayaram, Ashreya
Speck, Thomas
Bechinger, Clemens
author_facet Knippenberg, Timo
Jayaram, Ashreya
Speck, Thomas
Bechinger, Clemens
contents We investigate the structural and dynamic properties of active Brownian particles (APs) confined within a soft annulus-shaped channel. Depending on the strength of the confinement and the Péclet number, we observe a novel re-entrant behavior that is not present in unconfined systems. Our findings are substantiated by numerical simulations and analytical considerations, revealing that this behavior arises from the strong coupling between the Péclet number and the effective confining dimensionality of the APs. Beyond highlighting the important influence of soft boundaries on APs, our research holds significance for future applications of micro-robotic systems.
format Preprint
id arxiv_https___arxiv_org_abs_2310_16814
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Motility-induced clustering of active particles under soft confinement
Knippenberg, Timo
Jayaram, Ashreya
Speck, Thomas
Bechinger, Clemens
Soft Condensed Matter
We investigate the structural and dynamic properties of active Brownian particles (APs) confined within a soft annulus-shaped channel. Depending on the strength of the confinement and the Péclet number, we observe a novel re-entrant behavior that is not present in unconfined systems. Our findings are substantiated by numerical simulations and analytical considerations, revealing that this behavior arises from the strong coupling between the Péclet number and the effective confining dimensionality of the APs. Beyond highlighting the important influence of soft boundaries on APs, our research holds significance for future applications of micro-robotic systems.
title Motility-induced clustering of active particles under soft confinement
topic Soft Condensed Matter
url https://arxiv.org/abs/2310.16814