Localisation for non-monotone Schrödinger operators

Alexander Elgart, Mira Shamis, Sasha Sodin

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)909-924
Number of pages16
JournalJournal of the European Mathematical Society
Volume16
Issue number5
DOIs
StatePublished - 2014
Externally publishedYes

Keywords

  • Alloy-type models
  • Anderson localisation
  • Non-monotone
  • Wegner estimate

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