ArticleChaos (Woodbury, N.Y.)2025
Particle model of creation and annihilation captures termination dynamics of spiral defect chaos.
Article in Chaos (Woodbury, N.Y.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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3 authors.
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Abstract
Excitable media, including a cardiac tissue, can exhibit spiral defect chaos (SDC), during which spiral waves are continuously created and annihilated. Simulating this behavior typically requires solving large-scale reaction-diffusion systems, limiting computational feasibility especially for larger model domains. To address this, we have previously developed a particle model that was capable of replicating spiral-wave annihilation via short-range attraction and diffusion. In this study, we extend that model to capture spiral-wave creation by introducing a short-lived repulsive interaction between newly formed particle pairs. Our extended model accurately reproduces the termination statistics of SDC in cardiac simulations, including mean termination time, offering a simplified yet faithful description of SDC dynamics at much lesser computational cost.
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