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相关论文: Anderson transition on the Cayley tree as a travel…

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In contrast to finite dimensions where disordered systems display multifractal statistics only at criticality, the tree geometry induces multifractal statistics for disordered systems also off criticality. For the Anderson tight-binding…

无序系统与神经网络 · 物理学 2015-03-17 Cecile Monthus , Thomas Garel

Localization-delocalization transition in a discrete Anderson nonlinear Schr\"odinger equation with disorder is shown to be a critical phenomenon $-$ similar to a percolation transition on a disordered lattice, with the nonlinearity…

无序系统与神经网络 · 物理学 2012-03-20 A. V. Milovanov , A. Iomin

We consider the random wetting transition on the Cayley tree, i.e. the problem of a directed polymer on the Cayley tree in the presence of random energies along the left-most bonds. In the pure case, there exists a first-order transition…

无序系统与神经网络 · 物理学 2009-03-26 Cecile Monthus , Thomas Garel

We study the phenomena of Anderson localization in the presence of nonlinear interaction on a lattice. A class of nonlinear Schrodinger models with arbitrary power nonlinearity is analyzed. We conceive the various regimes of behavior,…

混沌动力学 · 物理学 2015-06-19 Alexander V. Milovanov , Alexander Iomin

The spectral statistics of a Cayley-tree is numerically studied. The statistics are non-universal due to the high ratio of boundary sites. Once the boundary sites are connected to each other in a way that preserves the local structure of…

无序系统与神经网络 · 物理学 2009-11-10 Miri Sade , Richard Berkovits

At Anderson critical points, the statistics of the two-point transmission $T_L$ for disordered samples of linear size $L$ is expected to be multifractal with the following properties [Janssen {\it et al} PRB 59, 15836 (1999)] : (i) the…

无序系统与神经网络 · 物理学 2009-05-28 Cecile Monthus , Thomas Garel

The Anderson delocalization-localization transition is studied in multilayered systems with randomly placed interlayer bonds of density $p$ and strength $t$. In the absence of diagonal disorder (W=0), following an appropriate perturbation…

无序系统与神经网络 · 物理学 2009-10-31 S. N. Evangelou , Shi-Jie Xiong , P. Markov , D. E. Katsanos

The scaling theory of Anderson localization is based on a global conductance $g_L$ that remains a random variable of order O(1) at criticality. One realization of such a conductance is the Landauer transmission for many transverse channels.…

无序系统与神经网络 · 物理学 2009-07-21 Cecile Monthus , Thomas Garel

A numerical study of Anderson transition on random regular graphs (RRG) with diagonal disorder is performed. The problem can be described as a tight-binding model on a lattice with N sites that is locally a tree with constant connectivity.…

无序系统与神经网络 · 物理学 2016-12-28 K. S. Tikhonov , A. D. Mirlin , M. A. Skvortsov

We conduct a numerical investigation into wave propagation and localization in one-dimensional lattices subject to nonlinear disorder, focusing on cases with fixed input conditions. Utilizing a discrete nonlinear Schr\"odinger equation with…

无序系统与神经网络 · 物理学 2024-08-30 Ba Phi Nguyen , Kihong Kim

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…

A new type of delocalization induced by coherent harmonic perturbations in one-dimensional Anderson-localized disordered systems is investigated. With only a few $M$ frequencies a normal diffusion is realized, but the transition to…

无序系统与神经网络 · 物理学 2021-04-14 Hiroaki S. Yamada , Kensuke S. Ikeda

We study the critical behavior of the Anderson localization-delocalization transition in corner-sharing tetrahedral lattices. We compare our results obtained by three different numerical methods namely the multifractal analysis, the Green…

无序系统与神经网络 · 物理学 2015-10-29 Martin Puschmann , Philipp Cain , Michael Schreiber

A field theory of the Anderson transition in two dimensional disordered systems with spin-orbit interactions and time-reversal symmetry is developed, in which the proliferation of vortex-like topological defects is essential for…

介观与纳米尺度物理 · 物理学 2015-06-11 Liang Fu , C. L. Kane

We study the dynamics of a monitored single particle in a one-dimensional, Anderson-localized system. The time evolution is governed by Hamiltonian dynamics for fixed time intervals, interrupted by local, projective measurements. The…

无序系统与神经网络 · 物理学 2023-05-24 Paul Pöpperl , Igor V. Gornyi , Yuval Gefen

In the previous paper [PRE 101,032210(2020)], localization and delocalization phenomena in the polychromatically perturbed Anderson map (AM) were elucidated mainly from the viewpoint of localization-delocalization transition (LDT) on the…

无序系统与神经网络 · 物理学 2022-08-19 Hiroaki S. Yamada , Kensuke S. Ikeda

The localization behavior of the Anderson model with anisotropic hopping integral t for weakly coupled planes and weakly coupled chains is investigated both numerically with the transfer matrix method and analytically within the…

凝聚态物理 · 物理学 2009-10-30 Qiming Li , C. M. Soukoulis , I. Zambetaki , E. N. Economou

We consider the transport of non-interacting electrons on two- and three-dimensional random Voronoi-Delaunay lattices. It was recently shown that these topologically disordered lattices feature strong disorder anticorrelations between the…

无序系统与神经网络 · 物理学 2015-12-01 Martin Puschmann , Philipp Cain , Michael Schreiber , Thomas Vojta

We study the Anderson-type localisation-delocalisation transition found previously in the QCD Dirac spectrum at high temperature. Using high statistics QCD simulations with $N_f=2+1$ flavours of staggered quarks, we discuss how the change…

高能物理 - 格点 · 物理学 2013-12-09 Matteo Giordano , Tamas G. Kovacs , Ferenc Pittler

We examine the onset of Anderson localization in three-dimensional systems with structural disorder in the form of lattice irregularities and in the absence of any on-site disordered potential. Analyzing two models with distinct types of…

无序系统与神经网络 · 物理学 2025-05-29 Sourav Bhattacharjee , Piotr Sierant , Marek Dudyński , Jan Wehr , Jakub Zakrzewski , Maciej Lewenstein
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