Two mechanisms of remote synchronization in a chain of Stuart-Landau oscillators.
basic_science · Level V
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- Record sourced from PubMed, PMID 34942824.
- Also identified by DOI 10.1103/PhysRevE.104.054202.
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Abstract
Remote synchronization implies that oscillators interacting not directly but via an additional unit (hub) adjust their frequencies and exhibit frequency locking while the hub remains asynchronous. In this paper, we analyze the mechanisms of remote synchrony in a small network of three coupled Stuart-Landau oscillators using recent results on higher-order phase reduction. We analytically demonstrate the role of two factors promoting remote synchrony. These factors are the nonisochronicity of oscillators and the coupling terms appearing in the second-order phase approximation. We show a good correspondence between our theory and numerical results for small and moderate coupling strengths.