Carregant...
Miniatura

Tipus de document

Article

Versió

Versió publicada

Data de publicació

Tots els drets reservats

Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/18715

Growth of unstable interfaces in disordered media

Títol de la revista

Director/Tutor

ISSN de la revista

Títol del volum

Resum

The 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.

Citació

Citació

LACASTA PALACIO, Ana maría, RAMÍREZ PISCINA, Laureano, CASADEMUNT I VIADER, Jaume, HERNÁNDEZ MACHADO, Aurora, RODRÍGUEZ DÍAZ, Miguel ángel. Growth of unstable interfaces in disordered media. _Physical Review E_. 1998. Vol. 57, núm. 5, pàgs. 1459-1464. [consulta: 26 de gener de 2026]. ISSN: 1539-3755. [Disponible a: https://hdl.handle.net/2445/18715]

Exportar metadades

JSON - METS

Compartir registre