Stochastic resonance in higher-order networks driven by colored noise

Bi, Zhongwen; Zhao, Dan; Liu, Qi; Kurths, Jürgen; Xu, Yong

doi:10.1063/5.0327064

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Stochastic resonance in higher-order networks driven by colored noise

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Bi, Zhongwen
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Zhao, Dan
Potsdam Institute for Climate Impact Research;

Liu, Qi
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Kurths, Jürgen
Potsdam Institute for Climate Impact Research;

Xu, Yong
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Bi, Z., Zhao, D., Liu, Q., Kurths, J., Xu, Y. (2026): Stochastic resonance in higher-order networks driven by colored noise. - Chaos, 36, 4, 043128.
https://doi.org/10.1063/5.0327064

Cite as: https://publications.pik-potsdam.de/pubman/item/item_34651

Abstract

We investigate stochastic resonance (SR) in an ensemble of coupled overdamped bistable oscillators driven by colored noise. The network incorporates the weighted contributions of both pairwise coupling and 2-simplex coupling. Our findings reveal a suppression effect of colored noise on SR in higher-order networks, namely, that increasing the noise correlation time monotonically reduces the resonance peak. Furthermore, for a fixed noise correlation time, increasing the weight of higher-order interactions decreases the peak amplitude. Meanwhile, as both the noise correlation time and the weight of higher-order interactions increase, the optimal noise intensity shifts progressively to larger values. To clarify the underlying mechanism, we establish a close connection between SR and the four-stage variation in network synchronization level. Specifically, the effects of higher-order coupling and colored noise on SR can be understood through their impact on network synchronization, which exhibits distinct extrema. Our analysis reveals that higher-order interactions primarily promote the spatial propagation of suppression effects due to colored noise.