English

Frequency dependence of H\"older continuity for quasiperiodic Schr\"odinger operators

Mathematical Physics 2013-12-18 v2 math.MP Spectral Theory

Abstract

We prove estimates on the H\"older exponent of the density of states measure for discrete Schr\"odinger operators with potential of the form V(n)=λ((n+1)βnβ)V(n) = \lambda(\lfloor(n+1)\beta\rfloor - \lfloor n\beta\rfloor), with λ\lambda large enough, and conclude that for almost all values of β\beta, the density of states measure is not H\"older continuous.

Keywords

Cite

@article{arxiv.1310.8553,
  title  = {Frequency dependence of H\"older continuity for quasiperiodic Schr\"odinger operators},
  author = {Paul Munger},
  journal= {arXiv preprint arXiv:1310.8553},
  year   = {2013}
}