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We report a first-principles study of static transport of localized waves in quasi-one-dimensional open media. We found that such transport, dominated by disorder-induced resonant transmissions, displays novel diffusive behavior. Our…

无序系统与神经网络 · 物理学 2015-05-18 Chu-Shun Tian , Sai-Kit Cheung , Zhao-Qing Zhang

In this paper, a multi-dimensional fractional wave equation that describes propagation of the damped waves is introduced and analyzed. In contrast to the fractional diffusion-wave equation, the fractional wave equation contains fractional…

数学物理 · 物理学 2021-03-12 Yuri Luchko

Strong-coupling analysis of two-dimensional chiral models, extended to 15th order, allows for the identification of a scaling region where known continuum results are reproduced with great accuracy, and asymptotic scaling predictions are…

高能物理 - 格点 · 物理学 2009-12-30 Massimo Campostrini , Paolo Rossi , Ettore Vicari

We derive an expression for the local transverse polarization of a boost-invariant expanding system of massive particles, which involves a set of dynamical spin moments. Starting from spin kinetic theory, we obtain a closed set of equations…

高能物理 - 唯象学 · 物理学 2023-12-12 Nora Weickgenannt , Jean-Paul Blaizot

For many complex systems the interaction of different scales is among the most interesting and challenging features. It seems not very successful to extract the physical properties in different scale regimes by the existing approaches, such…

流体动力学 · 物理学 2015-05-14 L. P. Wang , Y. X. Huang

Datasets containing both categorical and continuous variables are frequently encountered in many areas, and with the rapid development of modern measurement technologies, the dimensions of these variables can be very high. Despite the…

统计方法学 · 统计学 2024-01-03 Binyan Jiang , Chenlei Leng , Cheng Wang , Zhongqing Yang , Xinyang Yu

Localized wave fronts are a fundamental feature of biological systems from cell biology to ecology. Here, we study a broad class of bistable models subject to self-activation, degradation and spatially inhomogeneous activating agents. We…

细胞行为 · 定量生物学 2014-05-27 Steffen Rulands , Ben Klünder , Erwin Frey

A theoretical analysis of the statistical distributions of the reflected intensities from random media is presented. We use random matrix theory to analytically deduce the probability densities in the localization regime. Numerical…

无序系统与神经网络 · 物理学 2009-10-31 A. Garcia-Martin , T. Lopez-Ciudad , J. J. Saenz , M. Nieto-Vesperinas

This paper introduces coordinate-independent methods for analysing multiscale dynamical systems using numerical techniques based on the transfer operator and its adjoint. In particular, we present a method for testing whether an arbitrary…

动力系统 · 数学 2014-09-30 Gary Froyland , Georg A. Gottwald , Andy Hammerlindl

In this paper, the effect of weak nonlinearities in 1D locally resonant metamaterials is investigated via the method of multiple scales. Commonly employed to the investigate the effect of weakly nonlinear interactions on the free wave…

应用物理 · 物理学 2018-12-17 P. B. Silva , M. J. Leamy , M. G. D. Geers , V. G. Kouznetsova

In this paper we provide new methodology for inference of the geometric features of a multivariate density in deconvolution. Our approach is based on multiscale tests to detect significant directional derivatives of the unknown density at…

统计方法学 · 统计学 2016-11-21 Konstantin Eckle , Nicolai Bissantz , Holger Dette

This work is directed towards investigating the fate of three-dimensional long perturbation waves in a plane incompressible wake. The analysis is posed as an initial-value problem in space. More specifically, input is made at an initial…

流体动力学 · 物理学 2015-03-13 S. Scarsoglio , D. Tordella , W. O. Criminale

We investigate diffusion of excitation in one- and two-dimensional lattices with random on-site energies and deterministic long-range couplings (hopping) inversely proportional to the distance. Three regimes of diffusion are observed in…

无序系统与神经网络 · 物理学 2020-11-18 Karol Kawa , Paweł Machnikowski

We show that a one-dimensional Hubbard model with all-to-all coupling may exhibit many-body localization in the presence of local disorder. We numerically identify the parameter space where many-body localization occurs using exact…

无序系统与神经网络 · 物理学 2019-07-17 Piotr Sierant , Krzysztof Biedroń , Giovanna Morigi , Jakub Zakrzewski

The localization length for classical waves in two dimensional random media is calculated exactly, and is compared with the theoretical prediction from the previous analytic theory. Significant discrepancies are observed. It is also shown…

无序系统与神经网络 · 物理学 2009-11-07 Bikash C. Gupta , Zhen Ye

The statistical properties of the phases of several modes nonlinearly coupled in a random system are investigated by means of a Hamiltonian model with disordered couplings. The regime in which the modes have a stationary distribution of…

统计力学 · 物理学 2011-09-14 Claudio Conti , Luca Leuzzi

In this work we prove that the shallow water flow, subject to strong wind forcing and linearized around an adequate stationary profile, develops for large times closed trajectories due to the propagation of Rossby waves, while Poincar\'e…

偏微分方程分析 · 数学 2019-12-19 Christophe Cheverry , Isabelle Gallagher , Thierry Paul , Laure Saint-Raymond

Using the generalized variational framework, the strong/weak existence and uniqueness of solutions are derived for a class of distribution dependent stochastic porous media equations on general measure spaces, which also extends the…

概率论 · 数学 2023-03-16 Jingyue Gao , Wei Hong , Wei Liu

The interplay between gravitational and dispersive forces in a multi-streamed medium leads to an effect which is exposed in the present note as the genuine driving force of stabilization of large-scale structure. The conception of `adhesive…

天体物理学 · 物理学 2009-09-25 Thomas Buchert

Collisionless suspensions of inertial particles (finite-size impurities) are studied in 2D and 3D spatially smooth flows. Tools borrowed from the study of random dynamical systems are used to identify and to characterise in full generality…

混沌动力学 · 物理学 2007-05-23 Jeremie Bec