Overload wave-memory induces amnesia of a self-propelled particle
Maxime Hubert, St\'ephane Perrard, Nicolas Vandewalle, Matthieu, Labousse

TL;DR
This paper investigates how the accumulation of information in the wavefield of a self-propelled droplet system leads to a loss of memory, effectively turning the dynamics into a memory-less process, with implications for understanding active matter.
Contribution
It demonstrates experimentally and numerically that wavefield information causes amnesia in a self-propelled particle, introducing an effective temperature and a wavefield minimization principle.
Findings
Wavefield information accumulation induces loss of time correlations.
The dynamics can be modeled as a memory-less process.
An effective temperature describes the particle-wavefield interaction.
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 behaviour by defining…
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
Taxonomy
TopicsMicro and Nano Robotics · Distributed Control Multi-Agent Systems · Modular Robots and Swarm Intelligence
