Inverse tunneling estimates and applications to the study of spectral statistics of random operators on the real line

Frédéric Klopp (1)

1 IMJ - Institut de Mathématiques de Jussieu

We present a proof of Minami type estimates for one dimensional random Schrödinger operators valid at all energies in the localization regime provided a Wegner estimate is known to hold. The Minami type estimates are then applied to various models to obtain results on their spectral statistics. The heuristics underlying our proof of Minami type estimates is that close by eigenvalues of a one-dimensional Schrödinger operator correspond either to eigenfunctions that live far away from each other in space or they come from some tunneling phenomena. In the second case, one can undo the tunneling and thus construct quasi-modes that live far away from each other in space.

Mots clés: Random operators; Minami estimate; spectral statistics; tunneling effect

Domaines: Physique mathématique [math-ph]; Théorie spectrale [math.SP]

Frédéric Klopp. Inverse tunneling estimates and applications to the study of spectral statistics of random operators on the real line. 2012. ⟨hal-00551931v4⟩