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http://hdl.handle.net/2445/18731
Title: | Suppression of scroll wave turbulence by noise |
Author: | Alonso Muñoz, Sergio Sancho, José M. Sagués i Mestre, Francesc |
Keywords: | Química física Física estadística Termodinàmica Sistemes dinàmics diferenciables Physical chemistry Statistical physics Thermodynamics Differentiable dynamical systems |
Issue Date: | 2004 |
Publisher: | The American Physical Society |
Abstract: | 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. |
Note: | Reproducció del document publicat a: http://dx.doi.org/10.1103/PhysRevE.70.067201 |
It is part of: | Physical Review E, 2004, vol. 70, p. 067201(1)-067201(4) |
URI: | http://hdl.handle.net/2445/18731 |
Related resource: | http://dx.doi.org/10.1103/PhysRevE.64.051109 |
ISSN: | 1539-3755 |
Appears in Collections: | Articles publicats en revistes (Física Quàntica i Astrofísica) Articles publicats en revistes (Ciència dels Materials i Química Física) |
Files in This Item:
File | Description | Size | Format | |
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520751.pdf | 71.08 kB | Adobe PDF | View/Open |
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