White noise induces transitions between dynamical states in a network of 
nonlocally coupled birhythmic van der Pol-type systems

Njinkeu Nganso, E.; Ngueuteu Mbouna, S. G.; Yamapi, R.; Filatrella, G.; Kurths, Jürgen

doi:10.1007/s11071-025-10887-w

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White noise induces transitions between dynamical states in a network of nonlocally coupled birhythmic van der Pol-type systems

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Njinkeu Nganso, E.
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Ngueuteu Mbouna, S. G.
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Yamapi, R.
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Filatrella, G.
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Kurths, Jürgen
Potsdam Institute for Climate Impact Research;

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Citation

Njinkeu Nganso, E., Ngueuteu Mbouna, S. G., Yamapi, R., Filatrella, G., Kurths, J. (2025 online): White noise induces transitions between dynamical states in a network of nonlocally coupled birhythmic van der Pol-type systems. - Nonlinear Dynamics.
https://doi.org/10.1007/s11071-025-10887-w

Cite as: https://publications.pik-potsdam.de/pubman/item/item_32069

Abstract

A network of coupled birhythmic van der Pol oscillators presents a variety of symmetry breaking phenomena like two-attractor chimera states due to the fact that the coherent and incoherent oscillators evolve in different limit cycles. In the presence of noise one can observe a transition from these states to coherent or incoherent states, passing of course through different other states as the intensity of the noise becomes considerable. We find that noise promotes the disappearance of chimera states (such as solitary states) to give way to incoherent states (such as traveling waves).