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相关论文: On Mott's formula for the ac-conductivity in the A…

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This paper is a corrected version of Phys. Rev. B 95, 165404 (2017), which we have retracted because it contained a trivial but fatal sign error that lead to incorrect conclusions. --- We extend a recently-eveloped Fermi-liquid (FL) theory…

介观与纳米尺度物理 · 物理学 2018-08-09 Michele Filippone , Catalin Pascu Moca , Andreas Weichselbaum , Jan von Delft , Christophe Mora

Tailoring charge transport in solids on demand is the overarching goal of condensed-matter research as it is crucial for electronic applications. Yet, often the proper tuning knob is missing and extrinsic factors such as impurities and…

无序系统与神经网络 · 物理学 2024-12-05 M. Parzer , F. Garmroudi , A. Riss , T. Mori , A. Pustogow , E. Bauer

We consider an ergodic Schr\"odinger operator with magnetic field within the non-interacting particle approximation. Justifying the linear response theory, a rigorous derivation of a Kubo formula for the electric conductivity tensor within…

数学物理 · 物理学 2011-03-30 N. Dombrowski , F. Germinet

We generalize Minami's estimate for the Anderson model and its extensions to $n$ eigenvalues, allowing for $n$ arbitrary intervals and arbitrary single-site probability measures with no atoms. As an application, we derive new results about…

数学物理 · 物理学 2009-11-13 Jean-Michel Combes , François Germinet , Abel Klein

The three-dimensional Anderson model with a rectangular distribution of site disorder displays two distinct localization-delocalization transitions, against varying disorder intensity, for a relatively narrow range of Fermi energies. Such…

无序系统与神经网络 · 物理学 2016-08-31 S. L. A. de Queiroz

We study a system of fermions in one spatial dimension with linearly confining interactions and short-range disorder. We focus on the zero temperature properties of this system, which we characterize using bosonization and the Gaussian…

无序系统与神经网络 · 物理学 2018-05-22 Yang-Zhi Chou , Rahul M. Nandkishore , Leo Radzihovsky

In several superconductors above the superconducting transition temperature Tc, the electrical resistivity is of the form {\rho} =AT^2. We show that there exists an empirical relation between Tc and A when both vary with an external…

We have studied the effect of a random superconducting order parameter on the localization of quasi-particles, by numerical finite size scaling of the Bogoliubov-de Gennes tight-binding Hamiltonian. Anderson localization is obtained in d=2…

超导电性 · 物理学 2016-08-31 D. E. Katsanos , S. N. Evangelou , C. J. Lambert

We give a brief historical account on microscopic explanations of electrical conduction. One aim of this short review is to show that Thermodynamics is fundamental to the theoretical understanding of the phenomenon. We discuss how the 2nd…

数学物理 · 物理学 2016-11-29 J. -B. Bru , W. de Siqueira Pedra

We consider the two-dimensional Ginzburg-Landau functional with constant applied magnetic field. For applied magnetic fields close to the second critical field $H_{C_2}$ and large Ginzburg-Landau parameter, we provide leading order…

数学物理 · 物理学 2017-08-23 S. Fournais , A. Kachmar

We have studied the effects of interactions on persistent currents in half-filled and quarter-filled Hubbard models with weak and intermediate strength disorder. Calculations are performed using a variational Gutzwiller ansatz that…

强关联电子 · 物理学 2015-05-30 A. Farhoodfar , R. J. Gooding , W. A. Atkinson

We present a method that allows us to find asymptotic form of various characteristics of disordered systems in the strong localization regime, i.e., when either the random potential is big enough or the energy is close enough to the…

数学物理 · 物理学 2009-11-10 W. Kirsch , O. Lenoble , L. Pastur

Superconductivity in the t-J model is studied by extending the recently introduced extremely correlated fermi liquid theory. Exact equations for the Greens functions are obtained by generalizing Gor'kov's equations to include extremely…

超导电性 · 物理学 2021-10-05 B Sriram Shastry

The thermal conductivity k of the iron-arsenide superconductor Ba(Fe_{1-x}Co_x)_2As_2 was measured down to 50 mK for a heat current parallel (k_c) and perpendicular (k_a) to the tetragonal c axis, for seven Co concentrations from underdoped…

We show how certain properties of the Anderson model on a tree are related to the solutions of a non-linear integral equation. Whether the wave function is extended or localized, for example, corresponds to whether or not the equation has a…

凝聚态物理 · 物理学 2009-10-22 J. Miller , B. Derrida

We present a fully nonequilibrium calculation of the low temperature transport properties of a quantum dot in the Kondo regime when an AC potential is applied to the gate voltage. We solve a time dependent Anderson model with finite on-site…

强关联电子 · 物理学 2009-10-31 Rosa Lopez , Ramon Aguado , Gloria Platero , Carlos Tejedor

The Kondo and Periodic Anderson models describe many of the qualitative features of local moments coupled to a conduction band, and thereby the physics of materials such as the heavy fermions. In particular, when the exchange coupling $J$…

We study the Anderson localization of atomic gases exposed to simple-cubic optical lattices with a superimposed disordered speckle pattern. The two mobility edges in the first band and the corresponding critical filling factors are…

量子气体 · 物理学 2016-01-20 Elisa Fratini , Sebastiano Pilati

We calculate the finite temperature linear DC conductance of a generic single-impurity Anderson model containing an arbitrary number of Fermi liquid leads, and apply the formalism to closed and open long Aharonov-Bohm-Kondo (ABK) rings. We…

介观与纳米尺度物理 · 物理学 2017-03-01 Zheng Shi , Yashar Komijani

Influence of disorder-induced Anderson localization and of electron-electron interaction on superconductivity in two-dimensional systems is explored. We determine the superconducting transition temperature $T_c$, the temperature dependence…

超导电性 · 物理学 2015-07-30 I. S. Burmistrov , I. V. Gornyi , A. D. Mirlin