Roughening interfaces in deterministic dynamics

  • Two deterministic processes leading to roughening interfaces are considered. It is shown that the dynamics of linear perturbations of turbulent regimes in coupled map lattices is governed by a discrete version of the Kardar-Parisi-Zhang equation. The asymptotic scaling behavior of the perturbation field is investigated in the case of large lattices. Secondly, the dynamics of an order-disorder interface is modelled with a simple two-dimensional coupled map lattice, possesing a turbulent and a laminar state. It is demonstrated, that in some range of parameters the spreading of the turbulent state is accompanied by kinetic roughening of the interface.

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Metadaten
Author details:Jürgen KurthsORCiDGND, Arkadij PikovskijORCiDGND, Christian Scheffczyk
URN:urn:nbn:de:kobv:517-opus-13447
Publication series (Volume number):NLD Preprints (3)
Publication type:Preprint
Language:English
Publication year:1994
Publishing institution:Universität Potsdam
Release date:2007/05/18
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Physik und Astronomie
Zentrale und wissenschaftliche Einrichtungen / Interdisziplinäres Zentrum für Dynamik komplexer Systeme
DDC classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
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