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This article investigates the propagation of chaos property for weakly interacting mild solutions to semilinear stochastic partial differential equations whose coefficients might not satisfy Lipschitz conditions. Furthermore, we derive…

概率论 · 数学 2023-07-05 David Criens

Understanding the formation of novel pair density waves (PDWs) in strongly correlated electronic systems remains challenging. Recent mean-field studies suggest that PDW phases may arise in strong-coupling multiband superconductors by virtue…

强关联电子 · 物理学 2025-10-24 Hao-Xin Wang , Wen Huang

We investigate the interplay between coherent effects characteristic of the propagation of linear waves, the non-linear effects due to interactions, and the quantum manifestations of classical chaos due to geometrical confinement, as they…

混沌动力学 · 物理学 2015-06-05 Timo Hartmann , Juan-Diego Urbina , Klaus Richter , Peter Schlagheck

We consider general reaction diffusion systems posed on rectangular lattices in two or more spatial dimensions. We show that travelling wave solutions to such systems that propagate in rational directions are nonlinearly stable under small…

偏微分方程分析 · 数学 2014-10-28 A. Hoffman , H. J. Hupkes , E. Van Vleck

We find the different spatial chaos in a one-dimensional attractive Bose-Einstein condensate interacting with a Gaussian-like laser barrier and perturbed by a weak optical lattice. For the low laser barrier the chaotic regions of parameters…

其他凝聚态物理 · 物理学 2009-11-13 Wenhua Hai , Shiguang Rong , Qianquan Zhu

Light scattering in dense media is a fundamental problem of many-body physics, which is also relevant for the development of optical devices. In this work we investigate experimentally light propagation in a dense sample of randomly…

Linear and nonlinear mechanisms for conical wave propagation in two-dimensional lattices are explored in the realm of phononic crystals. As a prototypical example, a statically compressed granular lattice of spherical particles arranged in…

斑图形成与孤子 · 物理学 2016-02-17 C. Chong , P. G. Kevrekidis , M. J. Ablowitz , Yi-Ping Ma

Inertia-gravity mode and Rossby mode dispersion properties are examined for discretisations of the linearized rotating shallow-water equations using the $P1_{DG}$-$P2$ finite element pair on arbitrary triangulations in planar geometry. A…

数值分析 · 数学 2015-05-18 C. J. Cotter

Localized states in one-dimensional open disordered systems and their connection to the internal structure of random samples have been studied. It is shown that the localization of energy and anomalously high transmission associated with…

无序系统与神经网络 · 物理学 2009-11-10 K. Yu. Bliokh , Yu. P. Bliokh , V. Freilikher

The density of states (DoS), $\varrho(E)$, of graphene is investigated numerically and within the self-consistent T-matrix approximation (SCTMA) in the presence of vacancies within the tight binding model. The focus is on compensated…

介观与纳米尺度物理 · 物理学 2014-11-07 V. Haefner , J. Schindler , N. Weik , T. Mayer , S. Balakrishnan , R. Narayanan , S. Bera , F. Evers

We seek the possibility of a disorder driven transition in a tight-binding lattice with a flat band using complexity parameter approach. Our results indicate the existence of a localized to extended states transition with increasing…

统计力学 · 物理学 2018-11-14 Pragya Shukla

This is a review of the dynamics of wave propagation through a disordered N-mode waveguide in the localized regime. The basic quantities considered are the Wigner-Smith and single-mode delay times, plus the time-dependent power spectrum of…

无序系统与神经网络 · 物理学 2013-04-08 C. W. J. Beenakker

We study electronic ordering instabilities of twisted bilayer graphene with $n=2$ electrons per supercell, where correlated insulator state and superconductivity are recently observed. Motivated by the Fermi surface nesting and the…

强关联电子 · 物理学 2018-12-10 Hiroki Isobe , Noah F. Q. Yuan , Liang Fu

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

We investigate the contribution of charge puddles to the non-vanishing conductivity minimum in disordered graphene flakes at the charge neutrality point. For that purpose, we study systems with a geometry that suppresses the transmission…

介观与纳米尺度物理 · 物理学 2016-01-13 Leandro R. F. Lima , Caio H. Lewenkopf

Motivated by experiments on sheared suspensions that show a transition between ordered and disordered phases, we here study the long-time behavior of a sheared and overdamped 2-d system of particles interacting by repulsive forces. As a…

软凝聚态物质 · 物理学 2016-01-06 Jens C. Pfeifer , Tobias Bischoff , Georg Ehlers , Bruno Eckhardt

We investigate the wave packet dynamics and eigenstate localization in recently proposed generalized lattice models whose low-energy dynamics mimics a quantum field theory in (1+1)D curved spacetime with the aim of creating systems…

介观与纳米尺度物理 · 物理学 2022-12-14 Corentin Morice , Dmitry Chernyavsky , Jasper van Wezel , Jeroen van den Brink , Ali G. Moghaddam

The density of states of disordered hopping models generically exhibits an essential singularity around the edges of its support, known as a Lifshitz tail. We study this phenomenon on the Bethe lattice, i.e. for the large-size limit of…

无序系统与神经网络 · 物理学 2011-09-28 Victor Bapst , Guilhem Semerjian

In this presentation we overview some recent results on biased tracer diffusion in lattice gases. We consider both models in which the gas particles density is explicitly conserved and situations in which the lattice gas particles undergo…

统计力学 · 物理学 2007-05-23 G. Oshanin , O. Benichou , S. F. Burlatsky , M. Moreau

In a dusty plasma, an impulsively generated shock, i.e., blast wave, was observed to decay less than would be expected due to gas friction alone. In the experiment, a single layer of microparticles was levitated in a radio-frequency…

等离子体物理 · 物理学 2020-12-02 Anton Kananovich , J. Goree
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