Title:
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Suppression of scroll wave turbulence by noise
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Author:
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Alonso Muñoz, Sergio; Sancho, José M.; Sagués i Mestre, Francesc
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Other authors:
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Universitat de Barcelona |
Abstract:
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Rotating scroll waves are dynamical spatiotemporal structures characteristic of three-dimensional active media. It is well known that, under low excitability conditions, scroll waves develop an intrinsically unstable dynamical regime that leads to a highly disorganized pattern of wave propagation. Such a ¿turbulent¿ state bears some resemblance to fibrillation states in cardiac tissue. We show here that this unstable regime can be controlled by using a spatially distributed random forcing superimposed on a control parameter of the system. Our results are obtained from numerical simulations but an explicit analytical argument that rationalizes our observations is also presented. |
Subject(s):
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-Química física -Física estadística -Termodinàmica -Sistemes dinàmics diferenciables -Physical chemistry -Statistical physics -Thermodynamics -Differentiable dynamical systems |
Rights:
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(c) The American Physical Society, 2004
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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