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arXiv math-ph/0307062math-phmath.MPmath.SP
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随机薛定谔算符的积分态密度和Wegner估计

Integrated density of states and Wegner estimates for random Schrödinger Operators

Ivan Veselic'

摘要:

本文综述了随机薛定谔算子谱性质的最新研究结果。重点放在积分态密度(IDS)上。首先,我们提出了一个自平均IDS的存在性的证明,这是一般的,足以适用于随机薛定谔和Laplace-Beltrami算子流形上。随后,我们研究了更具体的模型在欧氏空间,即合金型,并集中在IDS的正则性。我们讨论的作用的积分态密度和其规律性的随机薛定谔算子的谱分析,特别是在本地化。文中给出了中心结果的详细证明。每当有替代的证明,不同的方法进行比较。

英文摘要:

We survey recent results on spectral properties of random Schrödinger operators. The focus is set on the integrated density of states (IDS). First we present a proof of the existence of a self-averaging IDS which is general enough to be applicable to random Schrödinger and Laplace-Beltrami operators on manifolds. Subsequently we study more specific models in Euclidean space, namely of alloy type, and concentrate on the regularity properties of the IDS. We discuss the role of the integrated density of states and its regularity properties for the spectral analysis of random Schrödinger operators, particularly in relation to localisation. Proofs of the central results are given in detail. Whenever there are alternative proofs, the different approaches are compared.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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