B5: Control of multiscale pattern formation and application to cardiac dynamics and active matter
Prof. Dr. Markus Bär 
We plan to analyze and control complex and typically chaotic
spatiotemporal dynamics (1) in cardiac
tissue and (2) in active fluids. In subproject 1, we will analyze and improve the mechanism of defibrillation
by sequences of low-energy electrical-field stimuli (LEAP) that induce waves from internal heterogeneities.
To achieve this, we plan to reduce a partial differential equations model to a stochastic mean-field like
model and to identify suitable macrovariables for an effective control. Subproject 2 will on the one hand,
deal with the control of mesoscale turbulence and stabilization of regular spatiotemporal states like
unidirectional collective motion or vortex lattices in a simple model of an active suspension of swimmers
through spatial modulation and feedback. On the other hand, the control of synchronisation and chimera
states in a model for phase oscillators with long-range coupling modelling arrays of cilia on the surface
of biological cells shall be studied in part 2 of this project.