A conformal invariant growth model

Details A conformal invariant growth model A conformal invariant growth model

2010-11-19

arxiv.org/abs/1011.4400v1

J.Stat.Mech.1012:P12032,2010

Physics

Condensed Matter

Statistical Mechanics

11 pages and 8 figures

Scientific paper

10.1088/1742-5468/2010/12/P12032

We present a one-parameter extension of the raise and peel one-dimensional growth model. The model is defined in the configuration space of Dyck (RSOS) paths. Tiles from a rarefied gas hit the interface and change its shape. The adsorption rates are local but the desorption rates are non-local, they depend not only on the cluster hit by the tile but also on the total number of peaks (local maxima) belonging to all the clusters of the configuration. The domain of the parameter is determined by the condition that the rates are non-negative. In the finite-size scaling limit, the model is conformal invariant in the whole open domain. The parameter appears in the sound velocity only. At the boundary of the domain, the stationary state is an adsorbing state and conformal invariance is lost. The model allows to check the universality of nonlocal observables in the raise and peel model. An example is given.

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