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- W4289360415 abstract "Recently, T. and M. Shcherbina proved a pointwise semicircle law for the density of states of one-dimensional Gaussian band matrices of large bandwidth. The main step of their proof is a new method to study the spectral properties of non-self-adjoint operators in the semiclassical regime. The method is applied to a transfer operator constructed from the supersymmetric integral representation for the density of states. We present a simpler proof of a slightly upgraded version of the semicircle law, which requires only standard semiclassical arguments and some peculiar elementary computations. The simplification is due to the use of supersymmetry, which manifests itself in the commutation between the transfer operator and a family of transformations of superspace, and was applied earlier in the context of band matrices by Constantinescu. Other versions of this supersymmetry have been a crucial ingredient in the study of the localization--delocalization transition by theoretical physicists." @default.
- W4289360415 created "2022-08-02" @default.
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- W4289360415 date "2018-10-31" @default.
- W4289360415 modified "2023-09-26" @default.
- W4289360415 title "The density of states of 1D random band matrices via a supersymmetric transfer operator" @default.
- W4289360415 doi "https://doi.org/10.48550/arxiv.1810.13150" @default.
- W4289360415 hasPublicationYear "2018" @default.
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