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Particles in space periodic potentials constitute standard models for investigation of crystalline phenomena in solid state physics. Time periodicity of periodically driven systems is a close analogue of space periodicity of solid state…

量子气体 · 物理学 2015-06-17 Krzysztof Sacha

We study the Anderson-like localization transition in the spectrum of the Dirac operator of quenched QCD. Above the deconfining transition we determine the temperature dependence of the mobility edge separating localized and delocalized…

高能物理 - 格点 · 物理学 2019-01-04 Tamas G. Kovacs , Reka A Vig

We study the magnetic and superconducting instabilities of the periodic Anderson model with infinite Coulomb repulsion U in the random phase approximation. The Neel temperature and the superconducting critical temperature are obtained as…

强关联电子 · 物理学 2009-11-10 N. M. R. Peres , M. A. N. Araujo

We investigate the properties of the background gauge field configurations that act as disorder for the Anderson localization mechanism in the Dirac spectrum of QCD at high temperatures. We compute the eigenmodes of the M\"obius domain-wall…

高能物理 - 格点 · 物理学 2016-06-29 Guido Cossu , Shoji Hashimoto

An ensemble of quasi-periodic discrete Schr\"{o}dinger operators with an arbitrary number of basic frequencies is considered, in a lattice of arbitrary dimension, in which the hull function is a realisation of a stationary Gaussian process…

数学物理 · 物理学 2021-09-28 Victor Chulaevsky , Sasha Sodin

Anderson localization (AL) is a ubiquitous interference phenomenon in which waves fail to propagate in a disordered medium. We observe three-dimensional AL of noninteracting ultracold matter by allowing a spin-polarized atomic Fermi gas to…

量子气体 · 物理学 2011-10-12 S. S. Kondov , W. R. McGehee , J. J. Zirbel , B. DeMarco

The transport coefficients of the Anderson model are calculated by extending Wilson's NRG method to finite temperature Green's functions. Accurate results for the frequency and temperature dependence of the single--particle spectral…

凝聚态物理 · 物理学 2009-10-22 T. A. Costi , A. C. Hewson , V. Zlatic

Transport quantities of the classical spin chain with the quenched disorder in the antiferromagnetic coupling $J_i$ are evaluated using the dynamical simulation at finite temperatures $T>0$ . Since the classical model is nonintegrable, spin…

统计力学 · 物理学 2015-10-28 Boštjan Jenčič , Peter Prelovšek

The Typical Medium Theory provides conceptually the simplest order parameter description of Anderson localization by self-consistently calculating the geometrically-averaged (typical) local density of states (LDOS). Here we show how spatial…

无序系统与神经网络 · 物理学 2016-08-08 Samiyeh Mahmoudian , Vladimir Dobrosavljević

The cross-magnetic-field (i.e., perpendicular) profile of ion temperature and the perpendicular profile of the magnetic-field-aligned (parallel) plasma flow are sometimes inhomogeneous for space and laboratory plasma. Instability caused by…

等离子体物理 · 物理学 2015-06-19 V. V. Mikhailenko. V. S. Mikhailenko , Hae June Lee , M. E. Koepke

We study, both experimentally and numerically, the Anderson localization phenomenon in torsional waves of a disordered elastic rod, which consists of a cylinder with randomly spaced notches. We find that the normal-mode wave amplitudes are…

混沌动力学 · 物理学 2015-06-04 J. Flores , L. Gutiérrez , R. A. Méndez-Sánchez , G. Monsivais , P. Mora , A. Morales

Recent experiments on non-interacting ultra-cold atoms in correlated disorder have yielded conflicting results regarding the so-called mobility edge, i.e. the energy threshold separating Anderson localized from diffusive states. At the same…

量子气体 · 物理学 2017-05-03 Michael Pasek , Giuliano Orso , Dominique Delande

We consider the multi-particle Anderson tight-binding model and prove that its lower spectral edge is non-random under some mild assumptions on the inter-particle interaction and the random external potential. We also adapt to the low…

数学物理 · 物理学 2013-12-30 Trésor Ekanga

In dissipationless linear media, spatial disorder induces Anderson localization of matter, light, and sound waves. The addition of nonlinearity causes interaction between the eigenmodes, which results in a slow wave diffusion. We go beyond…

无序系统与神经网络 · 物理学 2015-09-22 T. V. Laptyeva , A. A. Tikhomirov , O. I. Kanakov , M. V. Ivanchenko

We have studied the one-dimensional $p$-wave periodic Anderson model at finite temperature with the help of the numerically exact determinant quantum Monte Carlo simulation. It is found that the topological Haldane phase established for…

强关联电子 · 物理学 2018-10-25 Yin Zhong , Yu Liu , Qin Wang , Ke Liu , Hai-Feng Song , Hong-Gang Luo

As part of condensed-matter physics, the field of Anderson localization concerns the study of conductance of electrons in a random medium. We summarize and explain the results obtained in "A new numerical approach to Anderson…

数学物理 · 物理学 2012-07-17 Constanze Liaw

One metric for comparing confinement properties of different magnetic fusion energy configurations is the linear critical gradient of drift wave modes. The critical gradient scale length determines the ratio of the core to pedestal…

等离子体物理 · 物理学 2013-03-08 J. A. Baumgaertel , G. W. Hammett , D. R. Mikkelsen

In {\delta}-Ag2/3V2O5 with charge degrees of freedom in V, it is known that the charge ordering state and physical properties of V that appear at low temperatures depend strongly on the ordering state of Ag. In this study, we focused on the…

强关联电子 · 物理学 2024-03-13 T. Kubo , K. Kojima , N. Katayama , T. Runčevski , R. E. Dinnebier , A. S. Gibbs , M. Isobe , H. Sawa

Basic, local kinetic theory of ion temperature gradient driven (ITG) mode, with adiabatic electrons is reconsidered. Standard unstable, purely oscillating as well as damped solutions of the local dispersion relation are obtained using a…

等离子体物理 · 物理学 2018-02-14 Özgür Gültekin , Özgür D. Gürcan

A picture of thermal QCD phase change based on the analogy with metal-to-insulator transition of Anderson type was proposed in the past. In this picture, a low-$T$ thermal state is akin to a metal with deeply infrared (IR) Dirac modes…

高能物理 - 格点 · 物理学 2022-09-07 Andrei Alexandru , Ivan Horváth