Article (Scientific journals)
Overload wave-memory induces amnesia of a self-propelled particle.
Hubert, Maxime; Perrard, Stéphane; Vandewalle, Nicolas et al.
2022In Nature Communications, 13 (1), p. 4357
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Keywords :
Humans; Amnesia; Chemistry (all); Biochemistry, Genetics and Molecular Biology (all); Multidisciplinary; Physics and Astronomy (all); General Physics and Astronomy; General Biochemistry, Genetics and Molecular Biology; General Chemistry
Abstract :
[en] Information storage is a key element of autonomous, out-of-equilibrium dynamics, especially for biological and synthetic active matter. In synthetic active matter however, the implementation of internal memory in self-propelled systems is often absent, limiting our understanding of memory-driven dynamics. Recently, a system comprised of a droplet generating its guiding wavefield appeared as a prime candidate for such investigations. Indeed, the wavefield, propelling the droplet, encodes information about the droplet trajectory and the amount of information can be controlled by a single scalar experimental parameter. In this work, we show numerically and experimentally that the accumulation of information in the wavefield induces the loss of time correlations, where the dynamics can then be described by a memory-less process. We rationalize the resulting statistical behavior by defining an effective temperature for the particle dynamics where the wavefield acts as a thermostat of large dimensions, and by evidencing a minimization principle of the generated wavefield.
Disciplines :
Physics
Author, co-author :
Hubert, Maxime;  PULS Group, Institute for Theoretical Physics, Interdisciplinary center for nanostructured films (IZNF), Friedrich-Alexander-Universität Erlangen-Nürnberg, Cauerstr. 3, 91058, Erlangen, Germany. maxime.hubert@fau.de
Perrard, Stéphane;  Laboratoire de Physique et Mécanique des Milieux Hétérogènes, CNRS UMR 7636, ESPCI Paris et PSL Université, 10 rue Vauquelin, 75005, Paris, France. stephane.perrard@espci.fr
Vandewalle, Nicolas  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Labousse, Matthieu ;  Gulliver, CNRS UMR 7083, ESPCI Paris et PSL Université, 10 rue Vauquelin, 75005, Paris, France. matthieu.labousse@espci.fr
Language :
English
Title :
Overload wave-memory induces amnesia of a self-propelled particle.
Publication date :
2022
Journal title :
Nature Communications
eISSN :
2041-1723
Publisher :
Nature Research, England
Volume :
13
Issue :
1
Pages :
4357
Peer reviewed :
Peer Reviewed verified by ORBi
Funding text :
We would like to thank Yves Couder for past fruitful insights. The authors thank warmly Vincent Bacot and Emmanuel Fort for insightful discussions. M.H. acknowledges financial support by the Actions de Recherches Concertées (ARC) of the Belgium Wallonia-Brussels Federation under Contract No. 12-17/02. M.L. and S.P. acknowledge the financial support of the French Agence Nationale de la Recherche, through the project ANR Freeflow, LABEX WIFI (Laboratory of Excellence ANR-10-LABX-24), within the French Program Investments for the Future under reference ANR-10IDEX-0001-02 PSL. Computational resources have been provided by the Consortium des Équipements de Calcul Intensif (CÉCI), funded by the Fonds de la Recherche Scientifique de Belgique (F.R.S.-FNRS) under Grant No. 2.5020.11.
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