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In this paper, we establish the Anderson localization, strong dynamical localization and the $(\frac 12-)$-H\"older continuity of the integrated density of states (IDS) for some multi-dimensional discrete quasi-periodic (QP) Schr\"odinger…

Mathematical Physics · Physics 2024-06-12 Hongyi Cao , Yunfeng Shi , Zhifei Zhang

We exhibit limit-periodic Schr\"odinger operators that are uniformly localized in the strongest sense possible. That is, for these operators there are uniform exponential decay rates such that every element of the hull has a complete set of…

Spectral Theory · Mathematics 2015-01-05 David Damanik , Zheng Gan

We prove the complete asymptotic expansion of the integrated density of states of a two-dimensional Schrodinger operator with a smooth periodic potential

Mathematical Physics · Physics 2015-05-13 Leonid Parnovski , Roman Shterenberg

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…

Mathematical Physics · Physics 2020-10-07 J. M. Combes , P. D. Hislop

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…

Mathematical Physics · Physics 2017-12-22 Hayk Asatryan , Werner Kirsch

The object of the present study is the integrated density of states of a quantum particle in multi-dimensional Euclidean space which is characterized by a Schr\"odinger operator with a constant magnetic field and a random potential which…

Mathematical Physics · Physics 2009-10-31 Thomas Hupfer , Hajo Leschke , Peter Müller , Simone Warzel

We study the Integrated Density of States (IDS) of the random Schr\"odinger operator appearing in the study of certain reinforced random processes in connection with a supersymmetric sigma-model. We rely on previous results on the…

Mathematical Physics · Physics 2025-01-22 Margherita Disertori , Valentin Rapenne , Constanza Rojas-Molina , Xiaolin Zeng

We show that a large class of limit-periodic Schr\"odinger operators has purely absolutely continuous spectrum in arbitrary dimensions. This result was previously known only in dimension one. The proof proceeds through the non-perturbative…

Spectral Theory · Mathematics 2013-04-11 Helge Krueger

Schroedinger operators with certain Gaussian random potentials in multi-dimensional Euclidean space possess almost surely an absolutely continuous integrated density of states and no absolutely continuous spectrum at sufficiently low…

Quantum Physics · Physics 2007-05-23 Werner Fischer , Thomas Hupfer , Hajo Leschke , Peter Mueller

Recently, Hislop and Marx studied the dependence of the integrated density of states on the underlying probability distribution for a class of discrete random Schr\"odinger operators, and established a quantitative form of continuity in…

Mathematical Physics · Physics 2019-09-10 Mira Shamis

We prove that the integrated density of states (IDS) of random Schr\"{o}dinger operators with Anderson-type potentials on $L^2 (\R^d)$, for $d \geq1$, is locally H\"{o}lder continuous at all energies with the same H\"{o}lder exponent…

Mathematical Physics · Physics 2016-08-16 Jean-Michel Combes , Peter Hislop , Frédéric Klopp

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…

Mathematical Physics · Physics 2010-09-02 Leonid Parnovski , Roman Shterenberg

We consider Schr\"odinger operators in $\ell^2(\Z)$ whose potentials are defined via continuous sampling along the orbits of a homeomorphism on a compact metric space. We show that for each non-atomic ergodic measure $\mu$, there is a dense…

Spectral Theory · Mathematics 2025-06-19 Artur Avila , David Damanik

We compute an explicit formula for the integrated density of states of the periodic Airy-Schr{\"o}dinger operator on the real line. For this purpose, we study precisely the spectrum of the restriction of the periodic Airy-Schr{\"o}dinger…

Mathematical Physics · Physics 2020-03-09 H Boumaza , O Lafitte

We investigate spectral properties of limit-periodic Schr\"odinger operators in $\ell^2(\Z)$. Our goal is to exhibit as rich a spectral picture as possible. We regard limit-periodic potentials as generated by continuous sampling along the…

Spectral Theory · Mathematics 2012-05-31 Zheng Gan

We consider Schr\"odinger operators with smooth periodic potentials in Euclidean spaces of dimension bigger than 1 and prove a uniform lower bound on the density of states for large values of the spectral parameter.

Mathematical Physics · Physics 2012-04-06 Sergey Morozov , Leonid Parnovski , Irina Pchelintseva

We prove that the spectrum of a limit-periodic Schr\"odinger operator is homogeneous in the sense of Carleson whenever the potential obeys the Pastur--Tkachenko condition. This implies that a dense set of limit-periodic Schr\"odinger…

Spectral Theory · Mathematics 2015-07-09 Jake Fillman , Milivoje Lukic

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…

Spectral Theory · Mathematics 2011-11-09 Michael J. Gruber , Daniel H. Lenz , Ivan Veselić

We continue our study of the dependence of the density of states measure and related spectral functions of Schr\"odinger operators on the potential. Whereas our earlier work focused on random Schr\"odinger operators, we extend these results…

Mathematical Physics · Physics 2020-10-07 Peter D. Hislop , Christoph A. Marx

We investigate some bounds for the density of states in the pure point regime for the random Schr\"{o}dinger operators $H^{\omega}=-\Delta+\displaystyle\sum_{n\in\mathbb{Z}^d}a_nq_n(\omega)$, acting on $\ell^2(\mathbb{Z}^d)$, where…

Spectral Theory · Mathematics 2015-06-26 Dhriti Ranjan Dolai