Drifting Faraday patterns under localised driving

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 spatial nonuniformity sets Faraday-wave patterns motion, which noticeable the zigzag drift dynamics exhibited their wave crests. We provide a minimal model succeeds characterising growth of localised under nonuniform parametric driving. Furthermore, derivation accounts for symmetry-breaking nonlinear gradients show source mechanism, comes into play right after system has crossed secondary bifurcation point. Numerical solutions governing equations match our findings predictions. Our results advance understanding behaviour induced generic extended far from equilibrium.