Effective multi-scale approach to the Schrödinger cocycle over a skew-shift base
Effective multi-scale approach to the Schrödinger cocycle over a skew-shift base
复制标题
基于斜移基础的薛定谔循环的有效多尺度方法
DOI:
10.1017/etds.2019.19
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发表时间:
2019
影响因子:
0.9
通讯作者:
SCHLAG, W.
中科院分区:
文献类型:
--
作者:
HAN, R.;LEMM, M.;SCHLAG, W.
We prove a conditional theorem on the positivity of the Lyapunov exponent for a Schrödinger cocycle over a skew-shift base with a cosine potential and the golden ratio as frequency. For coupling below 1, which is the threshold for Herman’s subharmonicity trick, we formulate three conditions on the Lyapunov exponent in a finite but large volume and on the associated large-deviation estimates at that scale. Our main results demonstrate that these finite-size conditions imply the positivity of the infinite-volume Lyapunov exponent. This paper shows that it is possible to make the techniques developed for the study of Schrödinger operators with deterministic potentials, based on large-deviation estimates and the avalanche principle, effective.
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DOI:
10.3934/jmd.2013.7.619
发表时间:
2012
期刊:
arXiv: Dynamical Systems
影响因子:
--
作者:
W. Schlag
通讯作者:
W. Schlag
影响因子:
0.9
作者:
R. R. Hall
通讯作者:
R. R. Hall
影响因子:
0.9
作者:
D. Damanik
通讯作者:
D. Damanik
影响因子:
0.9
作者:
Y. Katznelson
通讯作者:
Y. Katznelson
DOI:
10.1007/s11854-011-0032-9
发表时间:
2009
期刊:
Journal d'Analyse Mathématique
影响因子:
--
作者:
H. Krüger
通讯作者:
H. Krüger