Drifting Faraday patterns under localised driving

Marín, Juan; Riveros-Ávila, Rafael; Coulibaly, Saliya; Taki, Majid; Gordillo, Leonardo; García-Ñustes, Mónica

Document type :

Compte-rendu et recension critique d'ouvrage

DOI :

10.1038/s42005-023-01170-8

Title :

Drifting Faraday patterns under localised driving

Author(s) :

Marín, Juan [Auteur]
Riveros-Ávila, Rafael [Auteur]
Coulibaly, Saliya [Auteur]

Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Taki, Majid [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Gordillo, Leonardo [Auteur]
García-Ñustes, Mónica [Auteur]

Journal title :

Communications Physics

Pages :

Publisher :

Nature Research

Publication date :

2023-04-07

ISSN :

2399-3650

HAL domain(s) :

Science non linéaire [physics]

English abstract : [en]

Abstract Physical systems undergoing spontaneous pattern formation are governed by intrinsic length scales that may compete with extrinsic ones, resulting in exceptional spatiotemporal behaviour. In this work, we report ...
Show more >Abstract Physical systems undergoing spontaneous pattern formation are governed by intrinsic length scales that may compete with extrinsic ones, resulting in exceptional spatiotemporal behaviour. In this work, we report experimental and theoretical evidence that spatial nonuniformity sets Faraday-wave patterns in motion, which are noticeable in the zigzag and drift dynamics exhibited by their wave crests. We provide a minimal theoretical model that succeeds in characterising the growth of localised patterns under nonuniform parametric driving. Furthermore, the derivation accounts for symmetry-breaking nonlinear gradients that we show are the source of the drift mechanism, which comes into play right after the system has crossed a secondary bifurcation point. Numerical solutions of the governing equations match our experimental findings and theoretical predictions. Our results advance the understanding of pattern behaviour induced by nonuniformity in generic nonlinear extended systems far from equilibrium.Show less >

Language :

Anglais

Popular science :

Non

Collections :

Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL

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