Synchronization of higher-dimensional Kuramoto oscillators on networks: from scalar to matrix-weighted couplings

Fuente: arXiv
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Autori principali: Gallo, Anna, Lambiotte, Renaud, Carletti, Timoteo
Natura: Preprint
Pubblicazione: 2026
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author Gallo, Anna
Lambiotte, Renaud
Carletti, Timoteo
author_facet Gallo, Anna
Lambiotte, Renaud
Carletti, Timoteo
contents The Kuramoto model is the paradigmatic model to study synchronization in coupled oscillator systems. In its classical formulation, the oscillators move on the unit circle, each characterized by a scalar phase and a natural frequency, by interacting through a sinusoidal coupling. In this work, we propose a d-dimensional generalization in which oscillators are represented as unit vectors on the (d-1)-sphere and interact through a matrix-weighted network (MWN), a recently introduced framework where links are endowed with a matrix weight instead of a scalar one. We derive necessary conditions for global synchronization via a Master Stability Function approach: the existence of a synchronous solution requires identical frequency matrices across nodes and, in the MWN case, a coherence condition on the network structure. Through a suitable change of variables, the stability analysis reduces the full Nd-dimensional problem to a family of d-dimensional eigenvalue problems, each one parametrized by the eigenvalue of a suitable scalar weighted Laplacian, showing that the synchronous solution is locally stable for any positive coupling strength K on any connected network. Analytical results are complemented by numerical simulations.
format Preprint
id arxiv_https___arxiv_org_abs_2603_08352
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Synchronization of higher-dimensional Kuramoto oscillators on networks: from scalar to matrix-weighted couplings
Gallo, Anna
Lambiotte, Renaud
Carletti, Timoteo
Statistical Mechanics
Dynamical Systems
Adaptation and Self-Organizing Systems
The Kuramoto model is the paradigmatic model to study synchronization in coupled oscillator systems. In its classical formulation, the oscillators move on the unit circle, each characterized by a scalar phase and a natural frequency, by interacting through a sinusoidal coupling. In this work, we propose a d-dimensional generalization in which oscillators are represented as unit vectors on the (d-1)-sphere and interact through a matrix-weighted network (MWN), a recently introduced framework where links are endowed with a matrix weight instead of a scalar one. We derive necessary conditions for global synchronization via a Master Stability Function approach: the existence of a synchronous solution requires identical frequency matrices across nodes and, in the MWN case, a coherence condition on the network structure. Through a suitable change of variables, the stability analysis reduces the full Nd-dimensional problem to a family of d-dimensional eigenvalue problems, each one parametrized by the eigenvalue of a suitable scalar weighted Laplacian, showing that the synchronous solution is locally stable for any positive coupling strength K on any connected network. Analytical results are complemented by numerical simulations.
title Synchronization of higher-dimensional Kuramoto oscillators on networks: from scalar to matrix-weighted couplings
topic Statistical Mechanics
Dynamical Systems
Adaptation and Self-Organizing Systems
url https://arxiv.org/abs/2603.08352