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相关论文: Some Estimates Regarding Integrated density of Sta…

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Electronic properties of amorphous or non-crystalline disordered solids are often modelled by one-particle Schroedinger operators with random potentials which are ergodic with respect to the full group of Euclidean translations. We give a…

无序系统与神经网络 · 物理学 2007-05-23 Hajo Leschke , Peter Müller , Simone Warzel

In this article we prove an upper bound for the Lyapunov exponent $\gamma(E)$ and a two-sided bound for the integrated density of states $N(E)$ at an arbitrary energy $E>0$ of random Schr\"odinger operators in one dimension. These…

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

In this paper we generalize and improve results proven for acoustic operators in \cite{jmp,long}. It deals with the behavior of the integrated density of states of random divergence operators of the form…

谱理论 · 数学 2007-05-23 Hatem Najar

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 eigenvalues of a continuum random Schr\"odinger operator $-\Delta+ V_{\omega}$ of Anderson type, with complex decaying potential, can be bounded (with high probability) in terms of an $L^q$ norm of the potential for all…

谱理论 · 数学 2025-02-12 Jean-Claude Cuenin , Konstantin Merz

We study expectation values of matrix elements for boundary values of the resolvent as well as the density of states for a random Schr\"odinger operator with potential distributed according to a Poisson process. Asymptotic expansions for…

数学物理 · 物理学 2022-08-23 David Hasler , Jannis Koberstein

We study spectral properties of random operators in the general setting of groupoids and von Neumann algebras. In particular, we establish an explicit formula for the canonical trace of the von Neumann algebra of random operators and define…

数学物理 · 物理学 2016-08-16 D. Lenz , N. Peyerimhoff , I. Veselić

We survey some aspects of the theory of the integrated density of states (IDS) of random Schroedinger operators. The first part motivates the problem and introduces the relevant models as well as quantities of interest. The proof of the…

数学物理 · 物理学 2007-05-23 Werner Kirsch , Bernd Metzger

We consider a Schroedinger operator with random potential distributed according to a Poisson process. We show that expectations of matrix elements of the resolvent as well as the density of states can be approximated to arbitrary precision…

数学物理 · 物理学 2023-02-13 David Hasler , Jannis Koberstein

We study the scattering properties of Schr\"{o}dinger operators with bounded potentials concentrated near a subspace of $\mathbb{R}^d$. For such operators, we show the existence of scattering states and characterize their orthogonal…

数学物理 · 物理学 2025-02-10 Adam Black , Tal Malinovitch

We prove some new pointwise-in-energy bounds on the expectations of various spectral shift functions associated with random Schr\"{o}dinger operators in the continuum having Anderson-type random potentials in both finite-volume and…

数学物理 · 物理学 2016-08-16 Jean-Michel Combes , Peter Hislop , Frédéric Klopp

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

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 consider the Riemannian universal covering of a compact manifold $M = X / \Gamma$ and assume that $\Gamma$ is amenable. We show for an ergodic random family of Schr\"odinger operators on $X$ the existence of a (non-random) integrated…

数学物理 · 物理学 2016-01-07 Norbert Peyerimhoff , Ivan Veselić

We investigate spectral properties of a discrete random displacement model, a Schr\"odinger operator on $\ell^2(\Z^d)$ with potential generated by randomly displacing finitely supported single-site terms from the points of a sublattice of…

数学物理 · 物理学 2016-08-14 Roger Nichols , Günter Stolz

We prove the complete asymptotic expansion of the integrated density of states of a Schrodinger operator H = -\Delta + b acting in R^d when the potential b is either smooth periodic, or generic quasi-periodic (finite linear combination of…

数学物理 · 物理学 2010-09-02 Leonid Parnovski , Roman Shterenberg

We prove real-analyticity of the density of states (DOS) for random Schr\"odinger operators with lattice-supported point interactions in $\mathbb{R}^d$ ($d=1,2,3$) in the small-hopping regime. In the attractive case, Krein's resolvent…

数学物理 · 物理学 2025-08-19 Masahiro Kaminaga

We consider one-dimensional random Schr\"odinger operators with a background potential, arising in the inverse problem of scattering. We study the influence of the background potential on the essential spectrum of the random Schr\"odinger…

数学物理 · 物理学 2017-12-22 Hayk Asatryan , Werner Kirsch

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

We derive bounds on the integrated density of states for a class of Schr\"odinger operators with a random potential. The potential depends on a sequence of random variables, not necessarily in a linear way. An example of such a random…

数学物理 · 物理学 2018-09-28 Werner Kirsch , Ivan Veselic'