Localization for random Schrödinger operators with low density potentials.
Résumé
We prove that, for a density of disorder $\rho$ small enough, a certain class of discrete random Schrödinger operators on $\Z^d$ with diluted potentials exhibits a Lifschitz behaviour from the bottom of the spectrum up to energies at a distance of the order $\rho^\alpha$ from the bottom of the spectrum, with $\alpha>2(d+1)/d$. This leads to localization for the energies in this zone for these low density models. The same results hold for operators on the continuous, and in particular, with Bernoulli or Poisson random potential.
| Origine | Fichiers produits par l'(les) auteur(s) |
|---|