Stochastic resonance in higher-order networks driven by colored noise

TL;DR

This paper explores how higher-order network interactions and colored noise influence stochastic resonance, revealing that such interactions amplify noise suppression effects and alter resonance characteristics in coupled bistable oscillators.

Contribution

It introduces a novel analysis of higher-order couplings in stochastic resonance under colored noise, linking synchronization dynamics to resonance behavior.

Findings

Higher-order interactions exacerbate noise suppression effects.

Colored noise shifts the optimal noise intensity for resonance.

Synchronization dynamics explain the influence of higher-order coupling.

Abstract

We investigate stochastic resonance (SR) in an ensemble of coupled overdamped bistable oscillators driven by colored noise. The networks incorporate the weighted contributions of both pairwise coupling and 2-simplex coupling. Our findings show that these higher-order interactions further exacerbate the suppression effect of colored noise on SR, reducing the peak of resonance curves and shifting the optimal noise intensity toward higher values. To clarify the underlying mechanism, we establish a close connection between SR and the four-stage variation in network synchronization level. Specially, the synchronization extremes explain the effect of higher-order coupling and colored noise on SR. Our analysis reveals that higher-order interactions do not reverse, but primarily promote the spatial propagation of suppression effects due to colored noise.