Correlations of a bound interface over a random substrate
نویسندگان
چکیده
Abstract: 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 〈hi; hi+j〉, averaged over the substrate disorder, fits a form ae −(j/b) 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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