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相关论文: Localization effects and inelastic scattering in d…

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Localization of wavefunctions is arguably the most familiar effect of disorder in quantum systems. It has been recently argued [[V. Khemani, R. Nandkishore, and S. L. Sondhi, Nature Physics, 11, 560 (2015)] that, contrary to naive…

无序系统与神经网络 · 物理学 2020-04-15 Z. Ovadyahu

The interrelation between disorder and interactions in two dimensional electron liquid is studied beyond weak coupling perturbation theory. Strong repulsion significantly reduces the electronic density of states on the Fermi level. This…

无序系统与神经网络 · 物理学 2007-05-23 B. Rosenstein , Tran Minh-Tien

We present a general model of disorder in Kondo alloys that, under certain conditions, leads to non-Fermi liquid behavior. The central underlying idea is the presence of a distribution of local Kondo temperature scales. If this distribution…

强关联电子 · 物理学 2008-02-03 E. Miranda , V. Dobrosavljevic , G. Kotliar

This paper extends an earlier analytical scattering matrix treatment of conductance and localization in coupled two- and three Anderson chain systems for weak disorder when evanescent states are present at the Fermi level. Such states exist…

无序系统与神经网络 · 物理学 2009-11-10 J. Heinrichs

We consider a disordered system of gapless fermions interacting with a singular transverse (2+1)-dimensional gauge-field. We study quantum corrections to fermion conductivity and show that they are very different from those in a Fermi…

强关联电子 · 物理学 2009-11-11 Victor Galitski

The phase diagram of correlated, disordered electron systems is calculated within dynamical mean-field theory using the H\"older mean local density of states. A critical disorder strength is determined in the Anderson-Falicov-Kimball model…

强关联电子 · 物理学 2009-11-13 Andre M. C. Souza , Daniela de O. Maionchi , Hans J. Herrmann

We consider the finkelstein action describing a system of spin polarized or spinless electrons near two dimensions, in the presence of disorder as well as the Coulomb interactions.We extend the renormalization group analysis of our previous…

介观与纳米尺度物理 · 物理学 2007-05-23 M. A. Baranov , I. S. Burmistrov , A. M. M. Pruisken

In the presence of quenched disorder, the interplay between local magnetic-moment formation and Anderson localization for electrons at a zero-temperature, metal-insulator transition (MIT) remains a long unresolved problem. Here, we study…

无序系统与神经网络 · 物理学 2024-10-17 Xinghai Zhang , Matthew S. Foster

The behavior of the conductivity and the density of states, as well as the phase relaxation time, of disordered itinerant electrons across a quantum ferromagnetic transition is discussed. It is shown that critical fluctuations lead to…

统计力学 · 物理学 2017-08-23 D. Belitz , S. L. Sessions , T. R. Kirkpatrick , M. T. Mercaldo , R. Narayanan , Thomas Vojta

We introduce an extension of the non-equilibrium dynamical mean field theory to incorporate the effects of static random disorder in the dynamics of a many-particle system by integrating out different disorder configurations resulting in an…

强关联电子 · 物理学 2025-04-28 Chakradhar Rangi , Herbert F Fotso , Hanna Terletska , Juana Moreno , Ka-Ming Tam

We demonstrate that a model of disordered Anderson lattices can account for many non-Fermi liquid features observed in a number of Kondo alloys. Due to the exponential nature of the Kondo temperature scale, even moderate disorder leads to a…

凝聚态物理 · 物理学 2007-05-23 E. Miranda , V. Dobrosavljevic , G. Kotliar

Motivated by current interest in disordered systems of interacting electrons, the effectiveness of the geometrically averaged density of states, $\rho_g(\omega)$, as an order parameter for the Anderson transition is examined. In the context…

强关联电子 · 物理学 2009-11-11 Yun Song , W. A. Atkinson , R. Wortis

In order to study an interplay of disorder, correlation, and spin imbalance on antiferromagnetism, we systematically explore the ground state of one-dimensional spin-imbalanced Anderson-Hubbard model by using the density-matrix…

强关联电子 · 物理学 2017-10-23 M. Okumura , S. Yamada , N. Taniguchi , M. Machida

We provide a review of recently-develop dynamical mean-field theory (DMFT) approaches to the general problem of strongly correlated electronic systems with disorder. We first describe the standard DMFT approach, which is exact in the limit…

强关联电子 · 物理学 2023-02-16 E. Miranda , V. Dobrosavljevic

We study the effect of disorder on the order parameter equation and transition temperature of a Pomeranchuk-type Fermi-surface instability using replica mean field theory. We consider the example of a phase transition to a $d_{x^2 +y^2}$…

强关联电子 · 物理学 2009-11-13 A. F. Ho , A. J. Schofield

We demonstrate the presence of energy dependent fluctuations in the localization length, which depend on the disorder distribution. These fluctuations lead to Ensemble Averaged Conductance Fluctuations (EACF) and are enhanced by large…

无序系统与神经网络 · 物理学 2009-11-13 M. Hilke

We study the interplay of disorder and interaction effects including bosonic degrees of freedom in the framework of a generic one-dimensional transport model, the Anderson-Edwards model. Using the density-matrix renormalization group…

强关联电子 · 物理学 2015-06-11 S. Nishimoto , S. Ejima , H. Fehske

We investigate ferromagnetism in the periodic Anderson model with diagonal disorder. Using dynamical mean-field theory in combination with the modified perturbation theory, the disorder can be included in the calculation consistently, which…

强关联电子 · 物理学 2009-11-07 D. Meyer

Combining the self-consistent theory of localization and the dynamical mean-field theory, we present a theoretical approach capable of describing both self-trapping of charge carriers during the process of polaron formation and…

强关联电子 · 物理学 2009-11-07 Franz X. Bronold , Holger Fehske

Shear localization occurs in various instances of material instability in solid mechanics and is typically associated with Hadamard-instability for an underlying model. While Hadamard instability indicates the catastrophic growth of…

偏微分方程分析 · 数学 2017-03-09 Theodoros Katsaounis , Julien Olivier , Athanasios E. Tzavaras