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BP: Fachverband Biologische Physik

BP 10: Focus Session: Nonlinear Dynamics in Biological Systems I (joint session DY/BP)

Dienstag, 18. März 2025, 09:30–12:30, H43

Nonlinear dynamics play a central role for biological systems to achieve remarkable complexity and adaptability. They underlie processes where small changes cascade into large effects, critical thresholds drive transitions, and feedback mechanisms maintain intricate balances. Biological systems are often far from equilibrium, exhibiting behaviors shaped by competing forces, stochastic fluctuations and emergent behavior. From the amplification of sensory signals near bifurcation points to the development of turbulence, concepts from nonlinear dynamics provide a unifying framework for studying patterns, stability, and collective behavior in living systems. This focus session explores the richness of nonlinear dynamics across biological scales, from molecular circuits to population-level phenomena, spanning vastly different fields from cardiac dynamics, embryogenesis and cell motility to active fluids, condensates and origin of life. Through theoretical models, experimental insights, and computational approaches, the talks illustrate how nonlinear-dynamics principles unravel the mechanisms driving function and complexity in biology, offering new perspectives across disciplines.

Organized by Philip Bittihn (Göttingen), Stefan Klumpp (Göttingen), and Carsten Beta (Potsdam)

	09:30	BP 10.1	Hauptvortrag: Robust signal amplification and information integration via self-tuned proximity to bifurcation points — •Isabella Graf
	10:00	BP 10.2	Exceptional Points and Stability in Nonlinear Models of Population Dynamics having PT symmetry — •Alexander Felski
	10:15	BP 10.3	Pattern selection and the route to turbulence in polar active fluids — Henning Reinken, Sebastian Heidenreich, •Markus Bär, and Sabine Klapp
	10:30	BP 10.4	Likelihood-based inference for heterogeneous motile particle ensembles — •Jan Albrecht, Cristina M. Torres, Carsten Beta, Manfred Opper, and Robert Großmann
	10:45	BP 10.5	Surviving the first "winter": Protocells with polymerization reactions protects against environmental fluctuations — •Xi Chen, Jens-Uwe Sommer, and Tyler Harmon
	11:00	BP 10.6	How inter-particle interaction affects two species transport in nano-channels — •Wolfgang Bauer
	11:15		15 min. break
	11:30	BP 10.7	Hauptvortrag: Beyond the connectionist view: (De-)synchronizing neural networks via cell-intrinsic dynamics — •Susanne Schreiber
	12:00	BP 10.8	Transient spatiotemporal chaos in cardiac excitable media — •Melvin Dix, Thomas Lilienkamp, Stefan Luther, and Ulrich Parlitz
	12:15	BP 10.9	Nonlinear dynamics of heart and brain — •Irene Pellini, Simon Bauer, Johannes Zierenberg, Philip Bittihn, and Viola Priesemann