Dynamics of curved interfaces

Details Dynamics of curved interfaces Dynamics of curved interfaces

2008-11-02

arxiv.org/abs/0811.0185v3

Ann. Phys. 324, 1796-1814 (2009)

Physics

Condensed Matter

Statistical Mechanics

Published version

Scientific paper

Stochastic growth phenomena on curved interfaces are studied by means of stochastic partial differential equations. These are derived as counterparts of linear planar equations on a curved geometry after a reparametrization invariance principle has been applied. We examine differences and similarities with the classical planar equations. Some characteristic features are the loss of correlation through time and a particular behaviour of the average fluctuations. Dependence on the metric is also explored. The diffusive model that propagates correlations ballistically in the planar situation is particularly interesting, as this propagation becomes nonuniversal in the new regime.

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