Multiscale analysis for ergodic schrödinger operators and positivity of Lyapunov exponents
Multiscale analysis for ergodic schrödinger operators and positivity of Lyapunov exponents
复制标题
遍历薛定谔算子的多尺度分析和 Lyapunov 指数的正性
DOI:
10.1007/s11854-011-0032-9
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
H. Krüger
中科院分区:
文献类型:
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作者:
H. Krüger
A variant of multiscale analysis for ergodic Schrödinger operators is developed. This enables us to prove positivity of Lyapunov exponents, given initial scale estimates and an initial Wegner estimate. This postivivity is then applied to high-dimensional skew-shifts at small coupling, where initial conditions are checked using the Pastur-Figotin formalism.