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Anomalies in the one-dimensional Anderson model at weak disorder

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We show that at the special energiesE=2cosπp/q, the invariant measure, the Lyapunov exponent, and the density of states can be extended to zero disorder as C functions in the disorder parameter. In particular, we obtain asymptotic series in the disorder parameter. This gives a rigorous proof of the existence of the anomalies originally discovered by Kappus and Wegner and studied by Derrida and Gardner and by Bovier and Klein.

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Communicated by T. Spencer

Partially supported by NSF grant DMS 87-02301

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Campanino, M., Klein, A. Anomalies in the one-dimensional Anderson model at weak disorder. Commun.Math. Phys. 130, 441–456 (1990). https://doi.org/10.1007/BF02096930

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  • DOI: https://doi.org/10.1007/BF02096930

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