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The wave function of a non-relativistic particle in a periodic potential admits oscillatory solutions, the Bloch waves. In the presence of a random noise contribution to the potential the wave function is localized. We outline a new proof…

高能物理 - 理论 · 物理学 2015-05-13 Robert Brandenberger , Walter Craig

We consider a one-dimensional unpinned chain of harmonic oscillators with random masses. We prove that after hyperbolic scaling of space and time the distributions of the elongation, momentum and energy converge to the solution of the Euler…

概率论 · 数学 2019-01-08 Cédric Bernardin , François Huveneers , Stefano Olla

Message-passing theories have proved to be invaluable tools in studying percolation, non-recurrent epidemics and similar dynamical processes on real-world networks. At the heart of the message-passing method is the nonbacktracking matrix…

物理与社会 · 物理学 2021-11-25 G. Timár , R. A. da Costa , S. N. Dorogovtsev , J. F. F. Mendes

Energy spectra of quasi-one-dimensional quantum rings with a few electrons are studied using several different theoretical methods. Discrete Hubbard models and continuum models are shown to give similar results governed by the special…

介观与纳米尺度物理 · 物理学 2007-05-23 M. Manninen , P. Koskinen , M. Koskinen , P. Singha Deo , S. M. Reimann , S. Viefers

Manipulating energy levels while controlling the electron localization is an essential step for many applications of confined systems. In this paper we demonstrate how to achieve electron localization and induce energy level oscillation in…

介观与纳米尺度物理 · 物理学 2015-05-25 Fahhad H. Alharbi , Pablo Serra , Marcelo Carignano , Sabre Kais

We study the spectral properties of a class of random matrices where the matrix elements depend exponentially on the distance between uniformly and randomly distributed points. This model arises naturally in various physical contexts, such…

无序系统与神经网络 · 物理学 2015-05-18 Ariel Amir , Yuval Oreg , Yoseph Imry

In this work, we develop an analytical framework to explain the influence of dissipation and detuning parameters on the emergence and stability of autoresonance in a strongly nonlinear weakly damped chain subjected to harmonic forcing with…

斑图形成与孤子 · 物理学 2020-03-16 Agnessa Kovaleva

For the multi-particle Anderson model with correlated random potential in the continuum, we show under fairly general assumptions on the inter-particle interaction and the random external potential, the Anderson localization which consists…

数学物理 · 物理学 2017-03-28 Trésor Ekanga

The relation between the baryon number in QCD at nonzero chemical potential and the spectral density of the baryon number Dirac operator, $\gamma_0(D+m)$, is examined. We show that extreme oscillations of the spectral density, caused by the…

高能物理 - 格点 · 物理学 2013-05-30 J. R. Ipsen , K. Splittorff

One-dimensional quantum emitters with chiral couplings can exhibit nonreciprocal decay channels, along with light-induced dipole-dipole interactions mediated via an atom-waveguide interface. When the position disorders are introduced to…

量子物理 · 物理学 2020-10-28 H. H. Jen

We study finite-difference approximations of both Poisson and Poisson-Boltzmann (PB) electrostatic energy functionals for periodic structures constrained by Gauss' law and a class of local algorithms for minimizing the finite-difference…

数值分析 · 数学 2024-09-25 Bo Li , Qian Yin , Shenggao Zhou

We consider a family of random matrix ensembles (RME) invariant under similarity transformations and described by the probability density $P({\bf H})= \exp[-{\rm Tr}V({\bf H})]$. Dyson's mean field theory (MFT) of the corresponding plasma…

凝聚态物理 · 物理学 2009-10-28 C. M. Canali

In a recent experiment [X. Yu et al., arXiv:2602.07654], energy-resolved measurements of an atomic matter wave spreading in a speckle potential enabled the direct observation of the three-dimensional Anderson transition. In this work, we…

We consider the Anderson model at large disorder on $\mathbb{Z}^2$ where the potential has a symmetric Bernoulli distribution. We prove that Anderson localization happens outside a small neighborhood of finitely many energies. These…

偏微分方程分析 · 数学 2022-03-18 Linjun Li

We study pairs of interacting self-avoiding walks on the 3d simple cubic lattice. They have a common origin and are allowed to overlap only at the same monomer position along the chain. The latter overlaps are indeed favored by an energetic…

软凝聚态物质 · 物理学 2009-10-31 Maria Serena Causo , Barbara Coluzzi , Peter Grassberger

We construct an energy-momentum tensor on the lattice which satisfies the appropriate Ward Identities (WIs) and has the right trace anomaly in the continuum limit. It is defined by imposing suitable WIs associated to the Poincare`…

高能物理 - 格点 · 物理学 2015-06-17 Leonardo Giusti , Michele Pepe

We derive a microscopic theory of glassy dynamics based on the transport of voids by micro-string motions, each of which involves particles arranged in a line hopping simultaneously displacing one another. Disorder is modeled by a random…

无序系统与神经网络 · 物理学 2018-03-02 Chi-Hang Lam

We study energy propagation in locally time-periodically driven disordered nonlinear chains. For frequencies inside the band of linear Anderson modes, three different regimes are observed with increasing driver amplitude: 1) Below…

斑图形成与孤子 · 物理学 2009-05-12 Magnus Johansson , Georgios Kopidakis , Stefano Lepri , Serge Aubry

We consider a one-dimensional Anderson model where the potential decays in average like $n^{-\alpha}$, $\alpha>0$. This simple model is known to display a rich phase diagram with different kinds of spectrum arising as the decay rate…

数学物理 · 物理学 2020-01-23 Olivier Bourget , Gregorio R. Moreno Flores , Amal Taarabt

Motivated by recent experimental observation (see e.g., I.V.Rubtsov, Acc. Chem. Res., v. 42, 1385 (2009)) of vibrational energy transport in CH_2O_N and CF_2_N molecular chains (N = 4 - 12), in this paper we present and solve analytically a…

介观与纳米尺度物理 · 物理学 2015-06-16 V. A. Benderskii , A. S. Kotkin , I. V. Rubtsov , E. I. Kats
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