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BP: Fachverband Biologische Physik
BP 13: Active Matter III (joint session DY/BP/CPP)
BP 13.10: Vortrag
Dienstag, 18. März 2025, 12:15–12:30, H47
A Pulsating Active Solid — •Umang A Dattani1, Francesco Serafin1, Jonas Ranft2, and Etienne Fodor1 — 1Department of Physics and Materials Science, University of Luxembourg, L-1511 Luxembourg City, Luxembourg — 2Institut de Biologie de l ENS, Ecole Normale Superieure, CNRS
Active matter has garnered significant attention in recent decades due to its numerous parallels with biological systems. Inspired by recent studies of biological tissues, such as cardiac cells, where constituent cell sizes periodically vary, a new form of activity termed "pulsating active matter" has been introduced recently. We propose a model of a pulsating active solid, consisting of size-changing particles linked by a triangular spring network. Despite the fixed connectivity, our model exhibits a variety of patterns and topological phase defects, akin to previous studies. Additionally, we explore the elastic continuum limit, which successfully predicts several essential features of the microscopic model. We conclude by highlighting intriguing properties of this system and its different potential parallels.
Keywords: Active solids; Pulsating Active Matter