Title:
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Dynamics of turing patterns under spatiotemporal forcing
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Author:
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Rüdiger, S.; Míguez, D. G.; Muñuzuri, A. P.; Sagués i Mestre, Francesc; Casademunt i Viader, Jaume
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Other authors:
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Universitat de Barcelona |
Abstract:
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We study, both theoretically and experimentally, the dynamical response of Turing patterns to a spatiotemporal forcing in the form of a traveling-wave modulation of a control parameter. We show that from strictly spatial resonance, it is possible to induce new, generic dynamical behaviors, including temporally modulated traveling waves and localized traveling solitonlike solutions. The latter make contact with the soliton solutions of Coullet [Phys. Rev. Lett. 56, 724 (1986)] and generalize them. The stability diagram for the different propagating modes in the Lengyel-Epstein model is determined numerically. Direct observations of the predicted solutions in experiments carried out with light modulations in the photosensitive chlorine dioxide-iodine-malonic acid reaction are also reported. |
Subject(s):
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-Química física -Dinàmica de fluids -Anàlisi espacial (Estadística) -Chemistry, Physical and theoretical -Fluid dynamics -Spatial analysis (Statistics) |
Rights:
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(c) American Physical Society, 2003
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Document type:
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Article Article - Published version |
Published by:
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American Physical Society
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