A theorem on the absence of phase transitions in one-dimensional growth models with onsite periodic potentials

Abstract

We rigorously prove that a wide class of one-dimensional growth models with onsite periodic potential, such as the discrete sine-Gordon model, have no phase transition at any temperature $T>0$. The proof relies on the spectral analysis of the transfer operator associated to the models. We show that this operator is Hilbert-Schmidt and that its maximum eigenvalue is an analytic function of temperature.

6 pages, no figures, submitted to J Phys A: Math Gen

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