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Sharp localization on the first supercritical stratum for Liouville frequencies

Spectral Theory 2024-05-14 v1 Mathematical Physics Dynamical Systems math.MP

Abstract

We establish Anderson localization for Schr\"odinger operators with even analytic potentials on the first supercritical stratum for Liouville frequencies in the sharp regime {E:L(ω,E)>β(ω)>0,κ(ω,E)=1}\{E: L(\omega,E)>\beta(\omega)>0, \kappa(\omega,E)=1\}, with κ(ω,E)\kappa(\omega,E) being Avila's acceleration. This paper builds on the large deviation measure estimate and complexity bound scheme, originally developed for Diophantine frequencies by Bourgain, Goldstein and Schlag \cites{BG,BGS1,BGS2}, and the improved complexity bounds in \cite{HS1}. Additionally, it strengthens the large deviation estimates for weak Liouville frequencies in \cite{HZ}. We also introduce new ideas to handle Liouville frequencies in a sharp way.

Keywords

Cite

@article{arxiv.2405.07810,
  title  = {Sharp localization on the first supercritical stratum for Liouville frequencies},
  author = {Rui Han},
  journal= {arXiv preprint arXiv:2405.07810},
  year   = {2024}
}