title: Stabilization of three-dimensional scroll waves and suppression of spatiotemporal chaos by heterogeneities.
abstract: Scroll waves in a three-dimensional medium with negative filament tension may break up and display spatiotemporal chaos. The presence of heterogeneities can influence the evolution of the medium, in particular scroll waves may pin to such heterogeneities. We show that as a result the medium may be stabilized by heterogeneities of a suitably chosen geometry. Thin rodlike heterogeneities suppress otherwise developing spatiotemporal chaos and additionally clear out already existing chaotic excitation patterns.
authors.affiliation: Max Planck Institute for Dynamics and Self-Organization Am Faßberg 17, 37077 Göttingen, Germany.|Institute for Theoretical Physics, Georg-August-Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
authors.forename: Florian
authors.initials: F
authors.lastname: Spreckelsen
authors.affiliation: Max Planck Institute for Dynamics and Self-Organization Am Faßberg 17, 37077 Göttingen, Germany.
authors.forename: Daniel
authors.initials: D
authors.lastname: Hornung
authors.affiliation: Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL 32306-4390, United States.
authors.forename: Oliver
authors.initials: O
authors.lastname: Steinbock
authors.affiliation: Max Planck Institute for Dynamics and Self-Organization Am Faßberg 17, 37077 Göttingen, Germany.|Institute for Nonlinear Dynamics, Georg-August-Universität Göttingen, Am Faßberg 17, 37077 Göttingen, Germany.|German Centre for Cardiovascular Research, partner site Göttingen, 37077 Göttingen, Germany.
authors.forename: Ulrich
authors.initials: U
authors.lastname: Parlitz
authors.affiliation: Max Planck Institute for Dynamics and Self-Organization Am Faßberg 17, 37077 Göttingen, Germany.|Institute for Nonlinear Dynamics, Georg-August-Universität Göttingen, Am Faßberg 17, 37077 Göttingen, Germany.|German Centre for Cardiovascular Research, partner site Göttingen, 37077 Göttingen, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Luther
mesh_terms: D017711:Nonlinear Dynamics; D062211:Spatio-Temporal Analysis