Multiplexing-based control of wavefront propagation: The interplay of inter-layer coupling, asymmetry and noise

We show how multiplexing influences propagating fronts in multilayer networks of coupled bistable oscillators. Using numerical simulation, we investigate both deterministic and noise-sustained propagation. In particular, we demonstrate that the multiplexing allows to reduce the intra-layer dynamics to a common regime where the front propagation speed in all the interacting layers attains the same fixed value. In the presence of noise the dynamics is more complicated and is characterized by the ability of the system to adjust to the common propagation speed for varying the multiplexing strength. In addition, we find that the noise-induced stabilization of wavefront propagation in multilayer networks allows to obtain less pronounced deviations of the wavefront compared to the stabilization achieved in the isolated layer. Finally, we demonstrate that the reduction of the wavefront deviations can be enhanced by increasing the number of interacting layers.

Automated summary

In this study, the influence of multiplexing on propagating fronts in multilayer networks of coupled bistable oscillators is investigated using numerical simulation. The results show that multiplexing can reduce the intra-layer dynamics to a common regime, where the front propagation speed in all the interacting layers attains the same fixed value. In the presence of noise, the dynamics become more complicated and the system has the ability to adjust to the common propagation speed by varying the multiplexing strength.