Article (Scientific journals)
Tunable bimodal explorations of space from memory-driven deterministic dynamics
Hubert, Maxime; Perrard, S.; Labousse, M. et al.
2019In Physical Review. E, 100 (3)
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Keywords :
Propulsion; Stochastic systems; Bimodal dynamics; Diffusive motions; Living systems; Particle trajectories; Point-like particles; Positional information; Search strategies; System control; Dynamics
Abstract :
[en] We present a wave-memory-driven system that exhibits intermittent switching between two propulsion modes in free space. The model is based on a pointlike particle emitting periodically cylindrical standing waves. Submitted to a force related to the local wave-field gradient, the particle is propelled, while the wave field stores positional information on the particle trajectory. For long memory, the linear motion is unstable and we observe erratic switches between two propulsive modes: linear motion and diffusive motion. We show that the bimodal propulsion and the stochastic aspect of the dynamics at long time are generated by a Shil'nikov chaos. The memory of the system controls the fraction of time spent in each phase. The resulting bimodal dynamics shows analogies with intermittent search strategies usually observed in living systems of much higher complexity. © 2019 American Physical Society.
Disciplines :
Physics
Author, co-author :
Hubert, Maxime
Perrard, S.;  Laboratoire de Physique de l'Ens, CNRS UMR 8550 ENS, PSL University, Paris, 75005, France
Labousse, M.;  Gulliver, CNRS UMR 7083, ESPCI Paris and PSL University, Paris, 75005, France
Vandewalle, Nicolas  ;  Université de Liège - ULiège > Département de physique > Physique statistique
Couder, Y.;  Matière et Systèmes Complexes, CNRS UMR 7057, Université Paris Diderot, Sorbonne Paris Cité, Paris, 75013, France
Language :
English
Title :
Tunable bimodal explorations of space from memory-driven deterministic dynamics
Publication date :
2019
Journal title :
Physical Review. E
ISSN :
2470-0045
eISSN :
2470-0053
Publisher :
American Physical Society
Volume :
100
Issue :
3
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
LabexAgence Nationale de la Recherche, ANR2.5020.11Division of Arctic Sciences, ARC12-17/02Fonds De La Recherche Scientifique - FNRS, FNRS
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