Measurement of the transition from uni- to bi-directional front propagation in a reaction-diffusion system

Abstract The transition from uni- to bi-directional front propagation, i.e. the breakdown of the strict concept of strong and weak domains, is studied experimentally using a chain of 128 coupled nonlinear electrical oscillators as a two component reaction-diffusion system. We compare the experimentally obtained transition points with recently derived theoretical criteria and find good agreement.