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相关论文: Conductance distribution in 3D Anderson insulators…

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We study transport across a time-dependent magnetic barrier present on the surface of a three-dimensional topological insulator. We show that such a barrier can be implemented for Dirac electrons on the surface of a three-dimensional…

介观与纳米尺度物理 · 物理学 2020-07-29 Adithi Udupa , K. Sengupta , Diptiman Sen

We obtain the statistics of the intensity, transmission and conductance for scalar electromagnetic waves propagating through a disordered collection of scatterers. Our results show that the probability distribution for these quantities, x,…

无序系统与神经网络 · 物理学 2007-05-23 Gabriel A. Cwilich , Fredy R. Zypman

We investigate the influence of realistic sheared grazing flow on acoustic propagation in three-dimensional rectangular ducts. We show that conclusions reached in the literature about the effects of sheared grazing flow on acoustic…

The conductance of disordered wires with symplectic symmetry is studied by numerical simulations on the basis of a tight-binding model on a square lattice consisting of M lattice sites in the transverse direction. If the potential range of…

介观与纳米尺度物理 · 物理学 2009-11-10 Yositake Takane

Results of numerical simulation of the weak localization in two-dimensional systems in wide range of magnetic filed are presented. Three cases are analyzed: (i) the isotropic scattering and randomly distributed scatterers; (ii) the…

无序系统与神经网络 · 物理学 2008-12-02 A. V. Germanenko , G. M. Minkov , A. A. Sherstobitov , O. E. Rut

We numerically study the distribution function of the conductance (transmission) in the one-dimensional tight-binding Anderson and periodic-on-average superlattice models in the region of fluctuation states where single parameter scaling is…

无序系统与神经网络 · 物理学 2009-11-10 L. I. Deych , M. V. Erementchouk , A. A. Lisyansky , Alexey Yamilov , Hui Cao

We study the distribution of resonance widths P(G) for three-dimensional (3D) random scattering media and analyze how it changes as a function of the randomness strength. We are able to identify in P(G) the system-inherent fingerprints of…

无序系统与神经网络 · 物理学 2009-11-11 Matthias Weiss , J. A. Mendez-Bermudez , Tsampikos Kottos

The scaling theory of Anderson localization is based on a global conductance $g_L$ that remains a random variable of order O(1) at criticality. One realization of such a conductance is the Landauer transmission for many transverse channels.…

无序系统与神经网络 · 物理学 2009-07-21 Cecile Monthus , Thomas Garel

We compute the distribution function of single-level curvatures, $P(k)$, for a tight binding model with site disorder, on a cubic lattice. In metals $P(k)$ is very close to the predictions of the random-matrix theory (RMT). In insulators…

凝聚态物理 · 物理学 2009-10-28 C. M. Canali , Chaitali Basu , W. Stephan , V. E. Kravtsov

We discuss a model of random segmented wire, with linear segments of 2D wires joined by circular bends. The joining vertices act as scatterers on the propagating electron waves. The model leads to resonant Anderson localization when all…

介观与纳米尺度物理 · 物理学 2016-03-09 Cristian Estarellas , Llorenç Serra

We present a theoretical approach to describe the 2D transport properties of the surfaces of three dimensional topological insulators (3DTIs) including disorder and phonon scattering effects. The method that we present is able to take into…

介观与纳米尺度物理 · 物理学 2013-01-01 Qiuzi Li , E. Rossi , S. Das Sarma

The problems of high linear conductivity in an electric field, as well as nonlinear conductivity, are considered for plasma-like systems. First, we recall several observations of nonlinear fast charge transport in dusty plasma, molecular…

等离子体物理 · 物理学 2015-06-23 S. A. Trigger , W. Ebeling , G. J. F. van Heijst , D. Litinski

We developed an analytic theory of inhomogeneous superconducting pairing in strongly disordered materials, which are moderately close to superconducting-insulator transition. Single-electron eigenstates are assumed to be Anderson-localized,…

超导电性 · 物理学 2022-03-22 Anton V. Khvalyuk , Mikhail V. Feigel'man

We study the Anderson transition for three-dimensional (3D) $N \times N \times N$ tightly bound cubic lattices where both real and imaginary parts of onsite energies are independent random variables distributed uniformly between $-W/2$ and…

无序系统与神经网络 · 物理学 2020-01-29 Yi Huang , B. I. Shklovskii

We study the effect of interactions on the zero-temperature a.c. conductivity of 2D Anderson insulator at low frequencies. We show that the enhancement of the real part of conductivity due to the Coulomb correlations in the occupation…

凝聚态物理 · 物理学 2009-10-28 T. V. Shahbazyan , M. E. Raikh

In a recent paper, we combined the technique of bosonization with the concept of a Rayleigh dissipation function to develop a model for resistances in one-dimensional systems of interacting spinless electrons [arXiv:1011.5058]. We also…

介观与纳米尺度物理 · 物理学 2015-05-27 Abhiram Soori , Diptiman Sen

Although topological Anderson insulator has been predicted in 2009, the lasting investigations of this disorder established nontrivial state results in only two experimental observations in cold atoms [Science, {\bf 362 },929 (2018)] and in…

无序系统与神经网络 · 物理学 2019-11-27 Zhi-Qiang Zhang , Bing-Lan Wu , Juntao Song , Hua Jiang

Magnetic reconnection, a fundamental plasma process, is pivotal in understanding energy conversion and particle acceleration in astrophysical systems. While extensively studied in two-dimensional (2D) configurations, the dynamics of…

等离子体物理 · 物理学 2025-08-05 Vinay Kumar , Pallavi Bhat

Using a three-frequency one-dimensional kicked rotor experimentally realized with a cold atomic gas, we study the transport properties at the critical point of the metal-insulator Anderson transition. We accurately measure the…

无序系统与神经网络 · 物理学 2012-04-16 Gabriel Lemarié , Hans Lignier , Dominique Delande , Pascal Szriftgiser , Jean Claude Garreau

Transmission of the scalar field through the random medium, represented by the system of randomly distributed dielectric cylinders is calculated numerically. System is mapped to the problem of electronic transport in disordered…

介观与纳米尺度物理 · 物理学 2016-08-31 P. Markos , C. M. Soukoulis