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Stabilization of three-dimensional scroll waves and suppression of spatiotemporal chaos by heterogeneities
Author(s) -
Florian Spreckelsen,
Daniel Hornung,
Oliver Steinbock,
Ulrich Parlitz,
Stefan Luther
Publication year - 2015
Publication title -
physical review. e, statistical, nonlinear and soft matter physics
Language(s) - English
Resource type - Journals
eISSN - 1550-2376
pISSN - 1539-3755
DOI - 10.1103/physreve.92.042920
Subject(s) - scroll , excitable medium , chaotic , protein filament , chaos (operating system) , mechanics , pattern formation , physics , excitation , tension (geology) , classical mechanics , statistical physics , geology , materials science , computer science , biology , computer security , genetics , archaeology , quantum mechanics , artificial intelligence , composite material , history , moment (physics)
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

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