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相关论文: The density of states and local eigenvalue statist…

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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…

概率论 · 数学 2021-09-28 Margherita Disertori , Martin Lohmann , Sasha Sodin

We consider ergodic random magnetic Schr\"odinger operators on the metric graph $\mathbb{Z}^d$ with random potentials and random boundary conditions taking values in a finite set. We show that normalized finite volume eigenvalue counting…

谱理论 · 数学 2011-11-09 Michael J. Gruber , Daniel H. Lenz , Ivan Veselić

We prove that the local eigenvalue statistics at energy $E$ in the localization regime for Schr\"odinger operators with random point interactions on $\mathbb{R}^d$, for $d=1,2,3$, is a Poisson point process with the intensity measure given…

数学物理 · 物理学 2019-05-21 Peter D. Hislop , Werner Kirsch , M. Krishna

For random operators it is conjectured that spectral properties of an infinite-volume operator are related to the distribution of spectral gaps of finite-volume approximations. In particular, localization and pure point spectrum in infinite…

数学物理 · 物理学 2014-06-09 Leander Geisinger

We study the local eigenvalue statistics $\xi_{\omega,E}^N$ associated with the eigenvalues of one-dimensional, $(2N+1) \times (2N+1)$ random band matrices with independent, identically distributed, real random variables and band width…

数学物理 · 物理学 2022-05-04 Peter D. Hislop , M. Krishna

By applying the supersymmetric approach we rigorously prove smoothness of the averaged density of states for a three dimensional random band matrix ensemble, in the limit of infinite volume and fixed band width. We also prove that the…

数学物理 · 物理学 2009-11-07 M. Disertori , H. Pinson , T. Spencer

Given a finitely generated amenable group we consider ergodic random Schr\"odinger operators on a Cayley graph with random potentials and random boundary conditions. We show that the normalised eigenvalue counting functions of finite volume…

数学物理 · 物理学 2014-02-18 Felix Pogorzelski , Fabian Schwarzenberger , Christian Seifert

We consider a two dimensional random band matrix ensemble, in the limit of infinite volume and fixed but large band width $W$. For this model we rigorously prove smoothness of the averaged density of states. We also prove that the resulting…

数学物理 · 物理学 2017-05-01 Margherita Disertori , Mareike Lager

We give an overview and extension of recent results on ergodic random Schr\"odinger operators for models on $\mathbb{Z}^d$. The operators we consider are defined on combinatorial or metric graphs, with random potentials, random boundary…

数学物理 · 物理学 2011-01-25 Michael J. Gruber , Daniel H. Lenz , Ivan Veselić

Consider a random regular graph of fixed degree $d$ with $n$ vertices. We study spectral properties of the adjacency matrix and of random Schr\"odinger operators on such a graph as $n$ tends to infinity. We prove that the integrated density…

数学物理 · 物理学 2014-05-09 Leander Geisinger

We study various statistics related to the eigenvalues and eigenfunctions of random Hamiltonians in the localized regime. Consider a random Hamiltonian at an energy $E$ in the localized phase. Assume the density of states function is not…

谱理论 · 数学 2012-10-11 François Germinet , Frédéric Klopp

It is shown that, for a Hamiltonian with a band structure, the half width of local spectral density of states, or strength function, is closely related to the width of the nonperturbative (NPT) parts of energy eigenfunctions. In the…

量子物理 · 物理学 2015-12-10 Yijian Zou , Yuchen Ma , Peijun Zhu , Jiaozi Wang , Wenge Wang

In this paper we study the local spectral statistics in the localised region of various random operator models, including the $d$-dimensional the Anderson model and random Schr\"odinger operators. It is already established, in the above…

谱理论 · 数学 2024-10-08 M. Krishna

We use the method of eigenvalue level spacing developed by Dietlein and Elgart (arXiv:1712.03925) to prove that the local eigenvalue statistics (LES) for the Anderson model on $Z^d$, with uniform higher-rank $m \geq 2$, single-site…

数学物理 · 物理学 2022-08-09 Samuel Herschenfeld , Peter D. Hislop

We prove some local estimates on the trace of spectral projectors for random Schr\"odinger operators restricted to cubes $\Lambda \subset R^d$. We also present a new proof of the spectral averaging result based on analytic perturbation…

数学物理 · 物理学 2020-10-07 J. M. Combes , P. D. Hislop

We show absence of energy levels repulsion for the eigenvalues of random Schr\"odinger operators in the continuum. We prove that, in the localization region at the bottom of the spectrum, the properly rescaled eigenvalues of a continuum…

数学物理 · 物理学 2009-07-09 Jean-Michel Combes , François Germinet , Abel Klein

We prove a probabilistic level-spacing estimate at the bottom of the spectrum for continuum alloy-type random Schr\"odinger operators, assuming sign-definiteness of a single-site bump function and absolutely continuous randomness. More…

数学物理 · 物理学 2024-01-12 Adrian Dietlein , Alexander Elgart

In this paper we solve a long standing open problem for Random Schr\"odinger operators on $L^2(\mathbb{R}^d)$ with i.i.d single site random potentials. We allow a large class of free operators, including magnetic potential, however our…

谱理论 · 数学 2020-01-14 Dhriti Ranjan Dolai , M Krishna , Anish Mallick

We prove that the the density of states measure (DOSm) for random Schr\"odinger operators on $\mathbb{Z}^d$ is weak-$^*$ H\"older-continuous in the probability measure. The framework we develop is general enough to extend to a wide range of…

数学物理 · 物理学 2018-06-13 Peter D. Hislop , Christoph A. Marx

We prove that the integrated density of surface states of continuous or discrete Anderson-type random Schroedinger operators is a measurable locally integrable function rather than a signed measure or a distribution. This generalize our…

数学物理 · 物理学 2007-05-23 Vadim Kostrykin , Robert Schrader
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