Wetting dynamics by mixtures of fast and slow self-propelled particles

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Author(s):	Rojas-Vega, Mauricio ; de Castro, Pablo ; Soto, Rodrigo Total Authors: 3
Document type:	Journal article
Source:	PHYSICAL REVIEW E; v. 107, n. 1, p. 6-pg., 2023-01-24.
Abstract
We study active surface wetting using a minimal model of bacteria that takes into account the intrinsic motility diversity of living matter. A mixture of "fast" and "slow" self-propelled Brownian particles is considered in the presence of a wall. The evolution of the wetting layer thickness shows an overshoot before stationarity and its composition evolves in two stages, equilibrating after a slow elimination of excess particles. Nonmonotonic evolutions are shown to arise from delayed avalanches towards the dilute phase combined with the emergence of a transient particle front. (AU)

FAPESP's process:	22/13872-5 - Pattern formation in active matter and biology: bacterial mixtures and vegetation
Grantee:	Pablo Souza de Castro Melo
Support Opportunities:	Scholarships in Brazil - Post-Doctoral


FAPESP's process:	21/14335-0 - ICTP South American Institute for Fundamental Research: a regional center for Theoretical Physics
Grantee:	Nathan Jacob Berkovits
Support Opportunities:	Special Projects


FAPESP's process:	21/10139-2 - Pattern formation in active matter and biology: bacterial mixtures and vegetation
Grantee:	Pablo Souza de Castro Melo
Support Opportunities:	Scholarships in Brazil - Post-Doctoral