Geodesic
Localisation for non-monotone Schrödinger operators
Journal of the European Mathematical Society, Tome 16 (2014) no. 5, pp. 909-924

Voir la notice de l'article provenant de la source EMS Press

We study localisation effects of strong disorder on the spectral and dynamical properties of (matrix and scalar) Schrödinger operators with non-monotone random potentials, on the d-dimensional lattice. Our results include dynamical localisation, i.e. exponentially decaying bounds on the transition amplitude in the mean. They are derived through the study of fractional moments of the resolvent, which are finite due to resonance-diffusing effects of the disorder. One of the byproducts of the analysis is a nearly optimal Wegner estimate. A particular example of the class of systems covered by our results is the discrete alloy-type Anderson model.
DOI : 10.4171/jems/451
Classification : 82-XX, 00-XX, 47-XX
Keywords: Anderson localisation, non-monotone, alloy-type models, Wegner estimate 
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     author = {Alexander Elgart and Mira Shamis and Sasha Sodin},
     title = {Localisation for non-monotone {Schr\"odinger} operators},
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Alexander Elgart; Mira Shamis; Sasha Sodin. Localisation for non-monotone Schrödinger operators. Journal of the European Mathematical Society, Tome 16 (2014) no. 5, pp. 909-924. doi: 10.4171/jems/451

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