Alonso Muñoz, SergioSancho, José M.Sagués i Mestre, Francesc2011-07-072011-07-0720041539-3755https://hdl.handle.net/2445/18731Rotating 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.4 p.application/pdfeng(c) The American Physical Society, 2004Química físicaFísica estadísticaTermodinàmicaSistemes dinàmics diferenciablesPhysical chemistryStatistical physicsThermodynamicsDifferentiable dynamical systemsinfo:eu-repo/semantics/article520751info:eu-repo/semantics/openAccess