Non-universal exponents in interface growth

Details Non-universal exponents in interface growth Non-universal exponents in interface growth

1997-07-22

arxiv.org/abs/cond-mat/9707226v1

Physics

Condensed Matter

Statistical Mechanics

12 pages, 5 figures; to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.79.2261

We report on an extensive numerical investigation of the Kardar-Parisi-Zhang equation describing non-equilibrium interfaces. Attention is paid to the dependence of the growth exponents on the details of the distribution of the noise. All distributions considered are delta-correlated in space and time, and have finite cumulants. We find that the exponents become progressively more sensitive to details of the distribution with increasing dimensionality. We discuss the implications of these results for the universality hypothesis.

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