Interface mapping in two-dimensional random lattice models

Details Interface mapping in two-dimensional random lattice models Interface mapping in two-dimensional random lattice models

2010-05-31

arxiv.org/abs/1005.5666v1

J. Stat. Mech. P08027 (2010)

Physics

Condensed Matter

Statistical Mechanics

7 pages, 6 figures

Scientific paper

We consider two disordered lattice models on the square lattice: on the medial lattice the random field Ising model at T=0 and on the direct lattice the random bond Potts model in the large-q limit at its transition point. The interface properties of the two models are known to be related by a mapping which is valid in the continuum approximation. Here we consider finite random samples with the same form of disorder for both models and calculate the respective equilibrium states exactly by combinatorial optimization algorithms. We study the evolution of the interfaces with the strength of disorder and analyse and compare the interfaces of the two models in finite lattices.

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