Dynamical Theory of Elastic Synchronization of Cardiomyocytes

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Hauptverfasser: Tomiie, Akinari, Uchida, Nariya
Format: Preprint
Veröffentlicht: 2026
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author Tomiie, Akinari
Uchida, Nariya
author_facet Tomiie, Akinari
Uchida, Nariya
contents We study synchronization of two cardiomyocytes mediated by elastic interactions through the substrate. Modeling each cell as an oscillating force dipole governed by a Rayleigh-type equation, we derive an effective mechanical coupling from the elastic response of the surrounding medium. Using phase reduction theory, supported by direct numerical simulations, we obtain a dynamical phase description for two cardiomyocytes that predicts geometry-dependent selection of synchronized states. Depending on the mutual orientation, the cells robustly converge to either in-phase or anti-phase beating, yielding an orientation-dependent state map with a nontrivial state boundary. The synchronization time also depends strongly on the distance and mutual orientation of the cells. These results bridge earlier energetic two-body theory and dynamical single-cell theory, and provide a dynamical framework for elastic synchronization of cardiomyocytes.
format Preprint
id arxiv_https___arxiv_org_abs_2604_13391
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Dynamical Theory of Elastic Synchronization of Cardiomyocytes
Tomiie, Akinari
Uchida, Nariya
Soft Condensed Matter
Adaptation and Self-Organizing Systems
We study synchronization of two cardiomyocytes mediated by elastic interactions through the substrate. Modeling each cell as an oscillating force dipole governed by a Rayleigh-type equation, we derive an effective mechanical coupling from the elastic response of the surrounding medium. Using phase reduction theory, supported by direct numerical simulations, we obtain a dynamical phase description for two cardiomyocytes that predicts geometry-dependent selection of synchronized states. Depending on the mutual orientation, the cells robustly converge to either in-phase or anti-phase beating, yielding an orientation-dependent state map with a nontrivial state boundary. The synchronization time also depends strongly on the distance and mutual orientation of the cells. These results bridge earlier energetic two-body theory and dynamical single-cell theory, and provide a dynamical framework for elastic synchronization of cardiomyocytes.
title Dynamical Theory of Elastic Synchronization of Cardiomyocytes
topic Soft Condensed Matter
Adaptation and Self-Organizing Systems
url https://arxiv.org/abs/2604.13391