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Title: Time-dependent couplings and crossover length scales in nonequilibrium surface roughening
Author: Pradas Gené, Marc
López Martín, Juan Manuel
Hernández Machado, Aurora
Keywords: Termodinàmica del desequilibri
Física estadística
Transformacions de fase (Física estadística)
Equacions d'estat
Nonequilibrium thermodynamics
Statistical physics
Phase transformations (Statistical physics)
Equations of state
Issue Date: 2007
Publisher: The American Physical Society
Abstract: We show that time-dependent couplings may lead to nontrivial scaling properties of the surface fluctuations of the asymptotic regime in nonequilibrium kinetic roughening models. Three typical situations are studied. In the case of a crossover between two different rough regimes, the time-dependent coupling may result in anomalous scaling for scales above the crossover length. In a different setting, for a crossover from a rough to either a flat or damping regime, the time-dependent crossover length may conspire to produce a rough surface, although the most relevant term tends to flatten the surface. In addition, our analysis sheds light into an existing debate in the problem of spontaneous imbibition, where time-dependent couplings naturally arise in theoretical models and experiments.
Note: Reproducció del document publicat a:
It is part of: Physical Review E, 2007, vol. 76, p. 010102-1(R)-010102-4 (R)
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ISSN: 1063-651X
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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