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相关论文: One Parameter Scaling Theory for Stationary States…

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The single parameter scaling hypothesis is the foundation of our understanding of the Anderson transition. However, the conductance of a disordered system is a fluctuating quantity which does not obey a one parameter scaling law. It is…

无序系统与神经网络 · 物理学 2009-11-07 Keith Slevin , Peter Markoš , Tomi Ohtsuki

To characterize a destruction of Anderson localization by nonlinearity, we study the spreading behavior of initially localized states in disordered, strongly nonlinear lattices. Due to chaotic nonlinear interaction of localized linear or…

混沌动力学 · 物理学 2012-06-12 Mario Mulansky , Karsten Ahnert , Arkady Pikovsky

By using dimensionless conductances as scaling variables, the conventional one-parameter scaling theory of localization fails for non-reciprocal non-Hermitian systems such as the Hanato-Nelson model. Here, we propose a one-parameter scaling…

无序系统与神经网络 · 物理学 2024-06-05 C. Wang , Wenxue He , X. R. Wang , Hechen Ren

The one parameter scaling theory is a powerful tool to investigate Anderson localization effects in disordered systems. In this paper we show this theory can be adapted to the context of quantum chaos provided that the classical phase space…

无序系统与神经网络 · 物理学 2008-07-08 Antonio M. Garcia-Garcia , Jiao Wang

We study the dynamics of a nonlinear one-dimensional disordered system obtained by coupling the Anderson model with the Gross-Pitaevskii equation. An analytical model provides us with a single quantity globally characterizing the…

量子物理 · 物理学 2012-06-06 Benoît Vermersch , Jean-Claude Garreau

This review is intended to give a pedagogical and unified view on the subject of the statistics and scaling of physical quantities in disordered electron systems at very low temperatures. Quantum coherence at low temperatures and randomness…

介观与纳米尺度物理 · 物理学 2015-06-25 Martin Janssen

We introduce a variant of the Banded Random Matrix ensemble and show, using detailed numerical analysis and theoretical arguments, that the phonon heat current in disordered quasi-one-dimensional lattices obeys a one-parameter scaling law.…

无序系统与神经网络 · 物理学 2013-02-07 Joshua D. Bodyfelt , Mei C. Zheng , Ragnar Fleischmann , Tsampikos Kottos

Validity of the single parameter scaling (SPS) in one dimensional Anderson model with purely off-diagonal disorder is being studied. It is shown that the localized region with standard symmetry is divided into two regimes: SPS and non-SPS.…

无序系统与神经网络 · 物理学 2009-11-11 Hosein Cheraghchi

We consider a noninteracting disordered system designed to model particle diffusion, relaxation in glasses, and impurity bands of semiconductors. Disorder originates in the random spatial distribution of sites. We find strong numerical…

无序系统与神经网络 · 物理学 2015-03-17 Jacob J. Krich , Alán Aspuru-Guzik

We propose a simplified version of the Multi-Scale Analysis of tight-binding Anderson models with strongly mixing random potentials which leads directly to uniform exponential bounds on decay of eigenfunctions in arbitrarily large finite…

数学物理 · 物理学 2012-05-08 Victor Chulaevsky

We have been investigating the problem of the Anderson localization in a disordered one dimensional tight-binding model. The disorder is created by the interaction of mobile particles with other species, immobilized at random positions. We…

量子气体 · 物理学 2016-11-23 Jan Major

The single-parameter scaling hypothesis predicts the absence of delocalized states for noninteracting quasiparticles in low-dimensional disordered systems. We show analytically and numerically that extended states may occur in the one- and…

无序系统与神经网络 · 物理学 2007-05-23 A. Rodriguez , V. A. Malyshev , G. Sierra , M. A. Martin-Delgado , J. Rodriguez-Laguna , F. Dominguez-Adame

The Discrete Nonlinear Schroedinger Equation with a random potential in one dimension is studied as a dynamical system. It is characterized by the length, the strength of the random potential and by the field density that determines the…

混沌动力学 · 物理学 2015-05-19 Arkady Pikovsky , Shmuel Fishman

Numerical study of the scaling of transmission fluctuations in the 1-D localization problem in the presence of absorption is carried out. Violations of single parameter scaling for lossy systems are found and explained on the basis of a new…

无序系统与神经网络 · 物理学 2013-05-29 Lev I. Deych , Alexey Yamilov , Alexander A. Lisyansky

We provide an analytic theory of Anderson localization on a lattice with a weak short-range correlated disordered potential. Contrary to the general belief we demonstrate that even next-neighbor statistical correlations in the potential can…

无序系统与神经网络 · 物理学 2009-11-11 M. Titov , H. Schomerus

We investigate Anderson localization on various 1D structures having flat bands. The main focus is on the scaling laws obeyed by the localization length at weak disorder in the vicinity of flat-band energies. A careful distinction is made…

介观与纳米尺度物理 · 物理学 2019-04-26 J. M. Luck

We prove that a strongly disordered two-dimensional system localizes with a localization length given analytically. We get a scaling law with a critical exponent is $\nu=1$ in agreement with the Chayes criterion $\nu\ge 1$. The case we are…

无序系统与神经网络 · 物理学 2013-05-21 Marco Frasca

We experimentally investigate the evolution of linear and nonlinear waves in a realization of the Anderson model using disordered one dimensional waveguide lattices. Two types of localized eigenmodes, flat-phased and staggered, are directly…

The localization of one-electron states in the large (but finite) disorder limit is investigated. The inverse participation number shows a non--monotonic behavior as a function of energy owing to anomalous behavior of few-site localization.…

无序系统与神经网络 · 物理学 2012-10-02 L. Ujfalusi , I. Varga

We study the spreading of initially localized states in a nonlinear disordered lattice described by the nonlinear Schr\"odinger equation with random on-site potentials - a nonlinear generalization of the Anderson model of localization. We…

无序系统与神经网络 · 物理学 2010-05-11 M. Mulansky , A. Pikovsky
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