Correlations of a bound interface over a random substrate

Details Correlations of a bound interface over a random substrate Correlations of a bound interface over a random substrate

2006-12-15

arxiv.org/abs/math-ph/0612047v1

Physics

Mathematical Physics

7 pages, 5 figures

Scientific paper

The correlation function of a one-dimensional interface over a random substrate, bound to the substrate by a pressure term, is studied by Monte-Carlo simulation. It is found that the height correlation < h_i ; h_{i+j} >, averaged over the substrate disorder, fits a form exp(-(j/b)^c) to a surprising precision in the full range of j where the correlation is non-negligible. The exponent c increases from 1.0 to 1.5 when the interface tension is taken larger and larger.

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