Simplicity of eigenvalues in Anderson-type models

Academic Article

Abstract

  • We show almost sure simplicity of eigenvalues for several models of Anderson-type random Schr√∂dinger operators, extending methods introduced by Simon for the discrete Anderson model. These methods work throughout the spectrum and are not restricted to the localization regime. We establish general criteria for the simplicity of eigenvalues which can be interpreted as separately excluding the absence of local and global symmetries, respectively. The criteria are applied to Anderson models with matrix-valued potential as well as with single-site potentials supported on a finite box. ¬© 2011 Institut Mittag-Leffler.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Naboko S; Nichols R; Stolz G
  • Start Page

  • 157
  • End Page

  • 183
  • Volume

  • 51
  • Issue

  • 1