Self-Attracting Walk on Lattices

Details Self-Attracting Walk on Lattices Self-Attracting Walk on Lattices

1997-08-07

arxiv.org/abs/cond-mat/9708061v1

Physics

Condensed Matter

Statistical Mechanics

6 pages, latex, 6 postscript figures, Submitted J.Phys.A

Scientific paper

10.1088/0305-4470/31/16/018

We have studied a model of self-attracting walk proposed by Sapozhnikov using Monte Carlo method. The mean square displacement $ < R^2(t) > \sim t^{2\nu}$ and the mean number of visited sites $ < S(t) > \sim t^{k}$ are calculated for one-, two- and three-dimensional lattice. In one dimension, the walk shows diffusive behaviour with $\nu=k=1/2$. However, in two and three dimension, we observed a non-universal behaviour, i.e., the exponent $\nu$ varies continuously with the strength of the attracting interaction.

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