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A random phase property establishing a link between quasi-one-dimensional random Schroedinger operators and full random matrix theory is advocated. Briefly summarized it states that the random transfer matrices placed into a normal system…

数学物理 · 物理学 2010-06-04 Rudolf A Roemer , Hermann Schulz-Baldes

Localization of electronic states in disordered thin layered systems with b layers is studied within the Anderson model of localization using the transfer-matrix method and finite-size scaling of the inverse of the smallest Lyapunov…

无序系统与神经网络 · 物理学 2007-05-23 V. Z. Cerovski , R. K. Brojen Singh , M. Schreiber

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

The interplay between incommensurate (IC) and random potentials is studied in a two-dimensional symplectic model with the focus on localization/delocalization problem. With the IC potential only, there appear wavefunctions localized along…

介观与纳米尺度物理 · 物理学 2009-11-11 Masaru Onoda , Naoto Nagaosa

We introduce the concept of a hyperuniformity disorder length that controls the variance of volume fraction fluctuations for randomly placed windows of fixed size. In particular, fluctuations are determined by the average number of…

软凝聚态物质 · 物理学 2017-09-18 A. T. Chieco , R. Dreyfus , D. J. Durian

We investigate the propagation and scattering of highly nonlinear waves in disordered granular chains composed of diatomic (two-mass) units of spheres that interact via Hertzian contact. Using ideas from statistical mechanics, we consider…

斑图形成与孤子 · 物理学 2015-05-13 Laurent Ponson , Nicholas Boechler , Yi Ming Lai , Mason A. Porter , P. G. Kevrekidis , Chiara Daraio

Multiple scattering of waves leads to many peculiar phenomena such as complete band gaps in periodic structures and wave localization in disordered media. Within a band gap excitations are evanescent; when localized they remain confined in…

无序系统与神经网络 · 物理学 2009-10-31 Zhen Ye , Emile Hoskinson

Anderson localization has been a subject of intense studies for many years. In this context, we study numerically the influence of long-range correlated disorder on the localization behavior in one dimensional systems. We investigate the…

无序系统与神经网络 · 物理学 2015-03-19 Alexander Croy , Philipp Cain , Michael Schreiber

In this paper, we consider time-harmonic elastic wave scattering governed by the Lam\'e system. It is known that the elastic wave field can be decomposed into the shear and compressional parts, namely, the pressure and shear waves that are…

偏微分方程分析 · 数学 2015-09-15 Hongyu Liu , Jingni Xiao

We present a new method for locating unstable periodic points of one dimensional chaotic maps. This method is based on order statistics. The densities of various maxima of the iterates are discontinuous exactly at unstable periodic points…

chao-dyn · 物理学 2009-10-31 M. C. Valsakumar , S. V. M. Satyanarayana , S. Kanmani

Using an innovative damped-Newton method, we report the first calculation of many distinct unstable periodic orbits (UPOs) of a large high-dimensional extensively chaotic partial differential equation. A majority of the UPOs turn out to be…

chao-dyn · 物理学 2008-02-03 Scott M. Zoldi , Henry S. Greenside

The propagation of light through a disordered layered system is studied. It is shown that distribution function of the transmission coefficient phase tends to stationary non-uniform distribution as the number of layers increases. The…

无序系统与神经网络 · 物理学 2022-05-17 Roman S. Puzko , Alexander M. Merzlikin

We investigate the statistics of single-mode delay times of waves reflected from a disordered waveguide in the presence of wave localization. The distribution of delay times is qualitatively different from the distribution in the diffusive…

无序系统与神经网络 · 物理学 2007-05-23 H. Schomerus , K. J. H. van Bemmel , C. W. J. Beenakker

We study localization properties of disordered bosons and spins in random fields at zero temperature. We focus on two representatives of different symmetry classes, hard-core bosons (XY magnets) and Ising magnets in random transverse…

无序系统与神经网络 · 物理学 2013-07-22 Xiaoquan Yu , Markus Mueller

We study Anderson localization and propagation of partially-spatially incoherent wavepackets in linear disordered potentials, motivated by the insight that interference phenomena resulting from multiple scattering are affected by the…

光学 · 物理学 2015-05-27 D. Čapeta , J. Radić , A. Szameit , M. Segev , H. Buljan

Pulses of synchronization in chaotic coupled map lattices are discussed in the context of transmission of information. Synchronization and desynchronization propagate along the chain with different velocities which are calculated…

无序系统与神经网络 · 物理学 2015-03-13 Bernhard Schmitzer , Wolfgang Kinzel , Ido Kanter

The conductance of disordered wires with symplectic symmetry is studied by numerical simulations on the basis of a tight-binding model on a square lattice consisting of M lattice sites in the transverse direction. If the potential range of…

介观与纳米尺度物理 · 物理学 2009-11-10 Yositake Takane

Due to their unique structural and mechanical properties, randomly-crosslinked polymer networks play an important role in many different fields, ranging from cellular biology to industrial processes. In order to elucidate how these…

We study the scattering modes of light in a three-dimensional disordered medium, in the scalar approximation and above the critical density for Anderson localization. Localized modes represent a minority of the total number of modes, even…

光学 · 物理学 2020-01-08 N. A. Moreira , R. Kaiser , R. Bachelard

We calculate the conductance of atomic chains as a function of their length. Using the Density Matrix Renormalization Group algorithm for a many-body model which takes into account electron-electron interactions and the shape of the…

介观与纳米尺度物理 · 物理学 2007-05-23 Rafael A. Molina , Dietmar Weinmann , Jean-Louis Pichard