Overload wave-memory induces amnesia of a self-propelled particle

Hubert M, Perrard S, Vandewalle N, Labousse M (2022)

Publication Type: Journal article

Publication year: 2022

Journal

Nature Communications Nature Publishing Group: Nature Communications

Book Volume: 13

Article Number: 4357

Journal Issue: 1

DOI: 10.1038/s41467-022-31736-z

Abstract

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.

Authors with CRIS profile

Maxime Hubert Physics Underlying Life Science

Involved external institutions

École supérieure de physique et de chimie industrielles de la ville de Paris (ESPCI Paris) FR France (FR) University of Liège (ULg) / Université de Liège BE Belgium (BE) PSL Research University / Université de recherche Paris Sciences et Lettres FR France (FR)

How to cite

APA:

Hubert, M., Perrard, S., Vandewalle, N., & Labousse, M. (2022). Overload wave-memory induces amnesia of a self-propelled particle. Nature Communications, 13(1). https://dx.doi.org/10.1038/s41467-022-31736-z

MLA:

Hubert, Maxime, et al. "Overload wave-memory induces amnesia of a self-propelled particle." Nature Communications 13.1 (2022).

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