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Universality classes in anisotropic non-equilibrium growth models

Uwe C. Tauber·E. Frey
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Abstract

We study the effect of generic spatial anisotropies on the scaling behavior in the Kardar-Parisi-Zhang equation. In contrast to its "conserved" variants, anisotropic perturbations are found to be relevant in d > 2 dimensions, leading to rich phenomena that include novel universality classes and the possibility of first-order phase transitions and multicritical behavior. These results question the presumed scaling universality in the strong-coupling rough phase, and shed further light on the connection with generalized driven diffusive systems.

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Uwe C. Tauber, E. Frey. 2001-08-20. Universality classes in anisotropic non-equilibrium growth models. https://doi.org/10.1209/epl%2Fi2002-00175-8

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