Regensburg 2025 – scientific programme
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DY: Fachverband Dynamik und Statistische Physik
DY 23: Poster: Active Matter, Soft Matter, Fluids (joint session DY/CPP)
DY 23.10: Poster
Wednesday, March 19, 2025, 10:00–12:00, P3
Many-Body Dynamics of actively rolling fibers — •Alex Arnhold1, Falko Ziebert1,2, and Igor M Kulic3,4 — 1Institute for Theoretical Physics, Heidelberg University, Philosophenweg 19, 69120 Heidelberg, Germany — 2BioQuant, Heidelberg University, Im Neuenheimer Feld 267, 69120 Heidelberg, Germany — 3Institut Charles Sadron UPR22-CNRS, 67034 Strasbourg, France — 4Institute Theory of Polymers, Leibniz-Institute of Polymer Research, D-01069 Dresden, Germany
Fiberboids are active filaments, capable of self-propulsion, whose dynamics were recently described in [A. Bazir, A. Baumann, F. Ziebert, I. M. Kulić, Soft Matter 2020]. So far, only single and simple 2-body dynamics of fiberboids were described.
In this work we will take a first look at the many-body dynamics. Specifically, we analyze a system of multiple nylon-rods, which when heated from below display self-propelled rolling motion. Confining the rods to roll on a single axis only, implements a simple realization of an 1D active gas. We analyze the experiments concerning clustering and nonequilibrium fluctuations and rationalize the system by simple lattice models.
Keywords: Active Matter; Self-Propulsion; Many-Body