On the zero-temperature limit of Gibbs states

preprint2010arXivOpen access

Abstract

We exhibit Lipschitz (and hence Hölder) potentials on the full shift {0,1}N\{0,1\}^{\mathbb{N}} such that the associated Gibbs measures fail to converge as the temperature goes to zero. Thus there are "exponentially decaying" interactions on the configuration space {0,1}Z\{0,1\}^{\mathbb Z} for which the zero-temperature limit of the associated Gibbs measures does not exist. In higher dimension, namely on the configuration space {0,1}Zd\{0,1\}^{\mathbb{Z}^{d}}, d≥3d\geq3, we show that this non-convergence behavior can occur for finite-range interactions, that is, for locally constant potentials.

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