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It is an undisputed textbook fact that non-retarded van der Waals (vdW) interactions between isotropic dimers are attractive, regardless of the polarizability of the interacting systems or spatial dimensionality. The universality of vdW…

介观与纳米尺度物理 · 物理学 2017-05-31 Mainak Sadhukhan , Alexandre Tkatchenko

Spatially separated electron systems remain strongly coupled by electron-electron interactions even when they cannot exchange particles, provided that the layer separation d is comparable to a characteristic distance l between charge…

Electronic correlations together with dimensional constraints lead to some of the most fascinating properties known in condensed matter physics. As possible candidates where these conditions are realized, semiconductor (111) surfaces and…

强关联电子 · 物理学 2013-10-09 Philipp Hansmann , Loig Vaugier , Hong Jiang , Silke Biermann

We investigate the effects of long-ranged Coulomb interactions in a tilted Dirac semimetal in two dimensions by using the perturbative renormalization-group method. Depending on the magnitude of the tilting parameter, the undoped system can…

强关联电子 · 物理学 2018-01-24 Yu-Wen Lee , Yu-Li Lee

One- to three-dimensional hypercubic lattices half-filled with localized particles interacting via the long-range Coulomb potential are investigated numerically. The temperature dependences of specific heat, mean staggered occupation, and…

凝聚态物理 · 物理学 2007-05-23 A. Mobius , U. K. Roessler

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 strong long-range Coulomb interaction between massless Dirac fermions in graphene can drive a semimetal-insulator transition. We show that this transition is strongly suppressed when the Coulomb interaction is screened by such effects…

强关联电子 · 物理学 2015-05-13 Guo-Zhu Liu , Wei Li , Geng Cheng

Mesoscopic fluctuations and correlations of the local density of states are studied near metal-insulator transitions in disordered interacting electronic systems. We show that the multifractal behavior of the local density of states…

介观与纳米尺度物理 · 物理学 2015-07-30 I. S. Burmistrov , I. V. Gornyi , A. D. Mirlin

Real materials always contain, to some extent, randomness in the form of defects or irregularities. It is known since the seminal work of Anderson that randomness can drive a metallic phase to an insulating one, and the mechanism…

We investigate the instabilities that may lead to the breakdown of the Luttinger liquid in the small-diameter (5,0) nanotubes, paying attention to the competition between the effective interaction mediated by phonon-exchange and the Coulomb…

强关联电子 · 物理学 2009-11-11 J. Gonzalez , E. Perfetto

We are interested in the out of equilibrium phenomena observed in the electrical conductance of disordered insulators at low temperature, which may be signatures of the electron coulomb glass state. The present work is devoted to the…

无序系统与神经网络 · 物理学 2010-08-09 Thierry Grenet , Julien Delahaye

In present work, we discuss the effect of Coulomb interaction to the dynamics of two-particle system bound in various traps. The strategy of including Coulomb interaction into the quantization condition of trapped system is discussed in a…

核理论 · 物理学 2021-06-23 Peng Guo

The interplay between strong Coulomb interactions and randomness has been a long-standing problem in condensed matter physics. According to the scaling theory of localization, in two-dimensional systems of noninteracting or weakly…

强关联电子 · 物理学 2007-05-23 S. V. Kravchenko , M. P. Sarachik

The theoretical model of the short-range interacting Luttinger liquid predicts a power-law scaling of the density of states and the momentum distribution function around the Fermi surface, which can be readily tested through tunneling…

强关联电子 · 物理学 2020-06-01 DinhDuy Vu , Anibal Iucci , Sankar Das Sarma

We consider temperature-induced melting of a Wigner solid in one dimensional (1D) and two dimensional (2D) lattices of electrons interacting via the long-range Coulomb interaction in the presence of strong disorder arising from charged…

无序系统与神经网络 · 物理学 2022-09-13 DinhDuy Vu , Sankar Das Sarma

We study the relaxation of a non-equilibrium carrier distribution under the influence of the electron-electron interaction in the presence of disorder. Based on the Anderson model, our Hamiltonian is composed from a single particle part…

无序系统与神经网络 · 物理学 2008-02-15 Peter Bozsoki , Imre Varga , Henning Schomerus

At low temperatures the dynamical degrees of freedom in amorphous solids are tunnelling two-level systems (TLSs). Concentrating on these degrees of freedom, and taking into account disorder and TLS-TLS interactions, we obtain a "TLS-glass",…

无序系统与神经网络 · 物理学 2020-07-27 Ofek Asban , Ariel Amir , Yoseph Imry , Moshe Schechter

Recent work on the temperature-driven delocalization in the quantum Hall regime is reviewed, with emphasis on the role of electron-electron interactions and the correlation properties of disorder. We have stressed (i) the crucial role of…

凝聚态物理 · 物理学 2007-05-23 D. G. Polyakov

The use of a nearby metallic ground-plane to limit the range of the Coulomb interactions between carriers is a useful approach in studying the physics of two-dimensional (2D) systems. This approach has been used to study Wigner…

介观与纳米尺度物理 · 物理学 2015-05-13 L. H. Ho , A. P. Micolich , A. R. Hamilton , O. P. Sushkov

The non-equilibrium relaxational properties of a three dimensional Coulomb glass model are investigated by kinetic Monte Carlo simulations. Our results suggest a transition from stationary to non-stationary dynamics at the equilibrium glass…

无序系统与神经网络 · 物理学 2007-05-23 Alejandro B. Kolton , D. R. Grempel , Daniel Dominguez