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In two dimensional disordered lattices, presence of interaction makes particles less localized than the non-interacting ones within the range of disorder strength $W \le 4$ and interaction strength $V \le 4$. If the interaction strength is…

无序系统与神经网络 · 物理学 2018-08-21 Tirthaprasad Chattaraj

We study the impact of a random quenched potentials and torques on scalar active matter. Microscopic simulations reveal that motility-induced phase separation is replaced in two-dimensions by an asymptotically homogeneous phase with…

统计力学 · 物理学 2021-02-02 Sunghan Ro , Yariv Kafri , Mehran Kardar , Julien Tailleur

We consider the correlation functions of two-dimensional turbulence in the presence and absence of a three-dimensional perturbation, by means of conformal field theory. In the persence of three dimensional perturbation, we show that in the…

高能物理 - 理论 · 物理学 2015-06-26 M. R. Rahimi Tabar , S. Rouhani

Electron-electron interactions generally reduce the low temperature resistivity due to the screening of the impurity potential by the electron gas. In the weak-coupling limit, the magnitude of this screening effect is determined by the…

强关联电子 · 物理学 2009-11-10 D. Tanaskovic , V. Dobrosavljevic , E. Abrahams , G. Kotliar

This paper is intended to demonstrate that there is no need to revise the existing theory of the transport properties of disordered conductors in the so-called weak localization regime. In particular, we demonstrate explicitly that recent…

无序系统与神经网络 · 物理学 2009-10-31 I. L. Aleiner , B. L. Altshuler , M. E. Gershenson

We study two interacting electrons in a two-dimensional system under a strong magnetic field and show that their numerically exact solutions organize into a set of {\em sub-Landau levels} characterized by relative angular momentum quantum…

强关联电子 · 物理学 2026-04-07 Guo-Qiang Hai

The nonclassical behaviors of a two-level system coupled to a harmonic oscillator is investigated in the ultrastrong coupling regime. We revisit the variational solution of the ground state and find that the existing solution do not account…

介观与纳米尺度物理 · 物理学 2010-09-01 Myung-Joong Hwang , Mahn-Soo Choi

Motivated by recent experimental realizations of programmable spin models with long-range interactions, we investigate the non-equilibrium dynamics of the Power-of-Two (PWR2) model. This model consists of sparse long-range couplings between…

无序系统与神经网络 · 物理学 2026-03-05 Kunal Singh , Sayan Choudhury

A two-dimensional electron gas in a high magnetic field displays macroscopically degenerate Landau levels, which can be split into Hofstadter subbands by means of a weak periodic potential. By carefully engineering such a potential, one can…

无序系统与神经网络 · 物理学 2019-08-21 Akshay Krishna , Matteo Ippoliti , R. N. Bhatt

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

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 investigate disorder effects on Landau levels in Dirac electron systems with the use of a non-Hermitian quasiparticle Hamiltonian formalism. This formalism reveals that spin-dependent scattering rates induce the spectrum collapse of…

介观与纳米尺度物理 · 物理学 2021-06-07 Taiki Matsushita , Yuki Nagai , Satoshi Fujimoto

It is shown that the classical commensurability phenomena in weakly modulated two-dimensional electron systems is a manifestation of the intrinsic properties of the correlation functions describing a homogeneous electron gas in a magnetic…

介观与纳米尺度物理 · 物理学 2020-06-23 O. E. Raichev

The scaling property of level statistics in the quantum Hall regime, i.e. 2D disordered electron systems subject to strong magnetic fields, is analyzed numerically in the light of the random matrix theory. The energy dependences of the…

凝聚态物理 · 物理学 2009-10-28 Y. Ono , T. Ohtsuki , B. Kramer

Disorder-induced spectral correlations of mesoscopic quantum systems in the non-diffusive regime and their effect on the magnetic susceptibility are studied. We perform impurity averaging for non-translational invariant systems by combining…

介观与纳米尺度物理 · 物理学 2009-10-31 Edward McCann , Klaus Richter

We study the dimensional crossover of weak localization in strongly anisotropic systems. This crossover from three-dimensional behavior to an effective lower dimensional system is triggered by increasing temperature if the phase coherence…

无序系统与神经网络 · 物理学 2009-10-30 C. Mauz , A. Rosch , P. Woelfle

The energy-energy correlation function of the two-dimensional Ising model with weakly fluctuating random bonds is evaluated in the large scale limit. Two correlation lengths exist in contrast to one correlation length in the pure 2D Ising…

凝聚态物理 · 物理学 2007-05-23 K. Ziegler

In recent years the ergodicity of disordered spin chains has been investigated via extensive numerical studies of the level statistics or the transport properties. However, a clear relationship between these results has yet to be…

无序系统与神经网络 · 物理学 2023-07-06 P. Prelovšek , J. Herbrych , M. Mierzejewski

The effect of Coulomb and short-range interactions on the spectral properties of two-dimensional disordered systems with two spinless fermions is investigated by numerical scaling techniques. The size independent universality of the…

无序系统与神经网络 · 物理学 2009-10-31 E. Cuevas

The energy level statistics of 2D electrons with spin-orbit scattering are considered near the disorder induced metal-insulator transition. Using the Ando model, the nearest-level-spacing distribution is calculated numerically at the…

凝聚态物理 · 物理学 2009-10-28 L. Schweitzer , I. Kh. Zharekeshev