Berlin 2018 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 15: Nonlinear Dynamics, Synchronization, Chaos I

DY 15.5: Talk

Monday, March 12, 2018, 16:30–16:45, BH-N 128

Synchronization of excitation waves in excitable media using low-pass filtered signals. — •Baltasar Rüchardt¹, Jochen Bröcker⁴, and Ulrich Parlitz^1,2,3 — ¹Max Planck Institute for Dynamics and Self-Organization, Göttingen, Germany — ²Georg-August-Universität Göttingen, Institute for Nonlinear Dynamics, Göttingen, Germany — ³German Center for Cardiovascular Research (partnersite Göttingen), Göttingen, Germany — ⁴University of Reading, Reading, UK

Excitable media are spatially extended systems with diffusion-like local transport in at least one variable. They respond strongly in this variable if it is pertubated above a threshold. They are suitable for modelling the electric activity in the heart muscle.

In this contribution we demonstrate that it is possible to synchronize two systems of excitable media by means of a uni-directional coupling with spatially low-pass filtered signals. The resulting ability of reconstructing the full spatio-temporal dynamics from a sequence of blurred images is crucial for recovering dynamical information in cardiac experiments using multichannel ECG measurements and synchronization based data assimilation methods.