Show simple item record

dc.contributor.authorLacasta Palacio, Ana María
dc.contributor.authorRamírez de la Piscina Millán, Laureano
dc.contributor.authorCasademunt, Jaume
dc.contributor.authorHernández-Machado, Aurora
dc.contributor.authorRodríguez, M. A.
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Física Aplicada
dc.identifier.citationLacasta, A.M. [et al.]. Growth of unstable interfaces in disordered media. Physical Review E".vol. 57, núm. 5, p. 5754-5760
dc.description.abstractThe effects of a disordered medium in the growth of unstable interfaces are studied by means of two local models with multiplicative and additive quenched disorder, respectively. For short times and large pushing the multiplicative quenched disorder is equivalent to a time-dependent noise. In this regime, the linear dispersion relation contains a destabilizing contribution introduced by the noise. For long times, the interface always gets pinned. We model the systematics of the pinned shapes by means of an effective nonlinear model. These results show good agreement with numerical simulations. For the additive noise we find numerically that a depinning transition occurs.
dc.publisherAmerican Physical Society
dc.subjectÀrees temàtiques de la UPC::Física
dc.subject.lcshNonlinear systems
dc.subject.otherNonlinear dynamics
dc.subject.otherMorphological instability
dc.titleGrowth of unstable interfaces in disordered media
dc.subject.lemacSistemes no lineals
dc.contributor.groupUniversitat Politècnica de Catalunya. NOLIN - Física No-Lineal i Sistemes Fora de l'Equilibri
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access

Files in this item


This item appears in the following Collection(s)

Show simple item record

All rights reserved. This work is protected by the corresponding intellectual and industrial property rights. Without prejudice to any existing legal exemptions, reproduction, distribution, public communication or transformation of this work are prohibited without permission of the copyright holder