English

Continuous quasiperiodic Schr\"odinger operators with Gordon type potentials

Mathematical Physics 2019-04-10 v2 math.MP

Abstract

Let us concern the quasi-periodic Schr\"odinger operator in the continuous case, \begin{equation*} (Hy)(x)=-y^{\prime\prime}(x)+V(x,\omega x)y(x), \end{equation*} where V:(R/Z)2RV:(\R/\Z)^2\to \R is piecewisely γ\gamma-H\"older continuous with respect to the second variable. Let L(E)L(E) be the Lyapunov exponent of Hy=EyHy=Ey. Define β(ω)\beta(\omega) as \begin{equation*} \beta(\omega)= \limsup_{k\to \infty}\frac{-\ln ||k\omega||}{k}. \end{equation*} We prove that HH admits no eigenvalue in regime {ER:L(E)<γβ(ω)}\{E\in\R:L(E)<\gamma\beta(\omega)\}.

Keywords

Cite

@article{arxiv.1709.05614,
  title  = {Continuous quasiperiodic Schr\"odinger operators with Gordon type potentials},
  author = {Wencai Liu},
  journal= {arXiv preprint arXiv:1709.05614},
  year   = {2019}
}
R2 v1 2026-06-22T21:45:41.166Z