Mixing Time for the Solid-on-Solid Model

Details Mixing Time for the Solid-on-Solid Model Mixing Time for the Solid-on-Solid Model

2010-07-31

arxiv.org/abs/1008.0125v1

Physics

Mathematical Physics

A preliminary version of this paper appeared in Proceedings of the 41st ACM Symposium on Theory of Computer Science (STOC), 20

Scientific paper

We analyze the mixing time of a natural local Markov chain (the Glauber dynamics) on configurations of the solid-on-solid model of statistical physics. This model has been proposed, among other things, as an idealization of the behavior of contours in the Ising model at low temperatures. Our main result is an upper bound on the mixing time of $O~(n^{3.5})$, which is tight within a factor of $O~(sqrt{n})$. (The notation O~ hides factors that are logarithmic in n.) The proof, which in addition gives some insight into the actual evolution of the contours, requires the introduction of a number of novel analytical techniques that we conjecture will have other applications.

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