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Localization for Discrete One Dimensional Random Word Models

David Damanik·Robert Sims·Günter Stolz
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Abstract

We consider Schr\"odinger operators in $\ell^2(\Z)$ whose potentials are obtained by randomly concatenating words from an underlying set $\mathcal{W}$ according to some probability measure $\nu$ on $\mathcal{W}$. Our assumptions allow us to consider models with local correlations, such as the random dimer model or, more generally, random polymer models. We prove spectral localization and, away from a finite set of exceptional energies, dynamical localization for such models. These results are obtained by employing scattering theoretic methods together with Furstenberg's theorem to verify the necessary input to perform a multiscale analysis.

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David Damanik, Robert Sims, Günter Stolz. 2002-11-22. Localization for Discrete One Dimensional Random Word Models. https://arxiv.org/abs/math-ph/0211057

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