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We study the persistence of localization for a strongly disordered tight-binding Anderson model on the lattice $\mathbb{Z}^d$, periodically driven on each site. Under two different sets of conditions, we show that Anderson localization…

数学物理 · 物理学 2016-07-26 Raphael Ducatez , François Huveneers

Localization driven by disorder has a strong influence on the conducting property of conducting polymer. A class of authors hold the opinion that disorder in the material is homogeneous and conducting polymer is disordered metal close to…

材料科学 · 物理学 2009-11-10 G. Li , P. Zheng , N. L. Wang , Y. Z. Long , Z. J. Chen , J. C. Li , M. X. Wan

Wave localization is ubiquitous in disordered media -- from amorphous materials, where soft-mode localization is closely related to materials failure, to semi-conductors, where Anderson localization leads to metal-insulator transition. Our…

软凝聚态物质 · 物理学 2020-07-30 Tingtao Zhou , Dimitrios Fraggedakis , Fan Wang

In this paper, we consider directed polymers in random environment with discrete space and time. For transverse dimension at least equal to 3, we prove that diffusivity holds for the path in the full weak disorder region, i.e., where the…

概率论 · 数学 2007-05-23 Francis Comets , Nobuo Yoshida

We show, using quasi-exact numerical simulations, that Anderson localization of one-dimensional particles in a disordered potential survives in the presence of attractive interaction between particles. The localization length of the…

We investigate a celebrated problem of one dimensional tight binding model in the presence of disorder leading to Anderson localization from a novel perspective. A binary disorder is assumed to be created by immobile heavy particles for the…

量子气体 · 物理学 2015-08-11 Arkadiusz Kosior , Jan Major , Marcin Płodzień , Jakub Zakrzewski

This paper describes directed polymer on general time-correlated random field. Law of large numbers, existence and smoothness of limiting free energies are proved at all temperature. We also display the delocalized-localized transition, via…

概率论 · 数学 2024-12-20 Jiaming Chen

A conducting 1D chain or 2D film inside (or on the surface of) an insulator is considered. Impurities displace the charges inside the insulator. This results in a long-range fluctuating electric field acting on the conducting line (plane).…

凝聚态物理 · 物理学 2009-10-31 V. V. Flambaum , V. V. Sokolov

The effect of disorder on magnonic transport in low-dimensional magnetic materials is studied in the framework of a classical spin model. Numerical investigations give insight into scattering properties of the systems and show the existence…

介观与纳米尺度物理 · 物理学 2015-07-24 Martin Evers , Cord A. Müller , Ulrich Nowak

We use a scattering formalism to derive a condition of strong coupling between a resonant scatterer and an Anderson localized mode for electromagnetic waves in two dimensions. The strong coupling regime is demonstrated based on exact…

光学 · 物理学 2015-06-15 Alexandre Cazé , Romain Pierrat , Rémi Carminati

We consider directed polymers in a random potential given by a deterministic profile with a strong maximum at the origin taken with random sign at each integer time. We study two main objects based on paths in this random potential. First,…

概率论 · 数学 2009-09-15 Yuri Bakhtin , Konstantin Khanin

We construct a phenomenological theory of self-localization of directed polymers in d+1 dimensions. In d=1 we show that the polymer is always self-localized, whereas in d=2 there is a phase transition between localized and free states. We…

统计力学 · 物理学 2007-05-23 T. J. Newman , Eugene B. Kolomeisky

The venerable phenomena of Anderson localization, along with the much more recent many-body localization, both depend crucially on the presence of disorder. The latter enters either in the form of quenched disorder in the parameters of the…

强关联电子 · 物理学 2017-07-04 Adam Smith , Johannes Knolle , Dmitry L. Kovrizhin , Roderich Moessner

We show that the tails of the asymptotic density distribution of a quantum wave packet that localizes in the the presence of random or quasiperiodic disorder can be described by the diagonal term of the projection over the eingenstates of…

量子气体 · 物理学 2014-01-28 Marco Moratti , Michele Modugno

The localization length has been derived for one-dimensional bi-layered structures with random perturbations in the refractive indices for each type of layers. Main attention is paid to the comparison between conventional materials and…

无序系统与神经网络 · 物理学 2015-05-30 E. J. Torres-Herrera , F. M. Izrailev , N. M. Makarov

This review presents a unified view on the problem of Anderson localization in one-dimensional weakly disordered systems with short-range and long-range statistical correlations in random potentials. The following models are analyzed: the…

无序系统与神经网络 · 物理学 2012-05-15 F. M. Izrailev , A. A. Krokhin , N. M. Makarov

We study localisation effects of strong disorder on the spectral and dynamical properties of (matrix and scalar) Schroedinger operators with non-monotone random potentials, on the d-dimensional lattice. Our results include dynamical…

数学物理 · 物理学 2016-11-18 Alexander Elgart , Mira Shamis , Sasha Sodin

We study the spatial structure of wave functions with exceptionally high local amplitudes in the Anderson model of localisation. By means of exact diagonalisations of finite systems, we obtain and analyse images of these wave functions: we…

无序系统与神经网络 · 物理学 2009-11-07 V. Uski , B. Mehlig , M. Schreiber

Disorder, ubiquitously present in solids, is normally detrimental to the stability of ordered states of matter. In this letter we demonstrate that not only is the physics of a strong topological insulator robust to disorder but, remarkably,…

介观与纳米尺度物理 · 物理学 2010-12-03 H. -M. Guo , G. Rosenberg , G. Refael , M. Franz

In linear disordered systems Anderson localization makes any wave packet stay localized for all times. Its fate in nonlinear disordered systems is under intense theoretical debate and experimental study. We resolve this dispute showing that…

无序系统与神经网络 · 物理学 2015-05-30 M. V. Ivanchenko , T. V. Laptyeva , S. Flach