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相关论文: Low Temperature Transport through a Quantum Dot: T…

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The paper deals with the nonequilibrium two-lead Anderson model, considered as an adequate description for transport through a d-c biased quantum dot. Using a self-consistent equation-of-motion method generalized out of equilibrium, we…

强关联电子 · 物理学 2011-03-11 Raphaël Van Roermund , Shiue-yuan Shiau , Mireille Lavagna

The infinite-U Anderson model is applied to transport through a quantum dot. The current and density of states are obtained via the non-crossing approximation for two spin-degenerate levels weakly coupled to two leads. At low temperatures,…

凝聚态物理 · 物理学 2009-10-22 Ned S. Wingreen , Yigal Meir

We study the Anderson model in which a configuration with a doublet is hybridized with another with a singlet and a triplet. We calculate the conductance through the system as a function of temperature and bias voltage, near the quantum…

强关联电子 · 物理学 2009-07-25 P. Roura Bas , A. A. Aligia

It is shown that the lesser and greater self energies and Green functions calculated in a recent work on universal noequilibrium transport in interacting quantum dots [E. Mu\~noz, C. J. Bolech, and S. Kirchner, Phys. Rev. Lett. 110, 016601…

强关联电子 · 物理学 2013-08-26 A. A. Aligia

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

We derive the transport properties of a quantum dot subject to a source-drain bias voltage at zero temperature and magnetic field. Using the Scattering Bethe Anstaz, a generalization of the traditional Thermodynamic Bethe Ansatz to open…

强关联电子 · 物理学 2015-03-13 Sung-Po Chao , Guillaume Palacios

We revisited the scaling behavior of the transport properties of a quantum dot system described by the spin-1/2 Anderson model using analytical methods. In the low temperature limit we show that the conductance has a universal behavior with…

介观与纳米尺度物理 · 物理学 2009-02-27 M. Crisan , I. Grosu , I. Tifrea

In this work we exploit the integrability of the two-lead Anderson model to compute transport properties of a quantum dot, in and out of equilibrium. Our method combines the properties of integrable scattering together with a…

介观与纳米尺度物理 · 物理学 2009-11-07 Robert Konik , Hubert Saleur , Andreas Ludwig

The transport coefficients of the Anderson model are calculated by extending Wilson's NRG method to finite temperature Green's functions. Accurate results for the frequency and temperature dependence of the single--particle spectral…

凝聚态物理 · 物理学 2009-10-22 T. A. Costi , A. C. Hewson , V. Zlatic

We calculate conductance through a quantum dot weakly coupled to metallic contacts by means of Keldysh out of equilibrium formalism. We model the quantum dot with the SU(2) Anderson model and consider the limit of infinite Coulomb…

强关联电子 · 物理学 2015-03-19 Leandro Tosi , Pablo Roura-Bas , Ana María Llois , Armando A. Aligia

We simulate the nonequilibrium dynamics of two generic many-body quantum impurity models by employing the recently developed iterative influence-functional path integral method [Phys. Rev. B {\bf 82}, 205323 (2010)]. This general approach…

介观与纳米尺度物理 · 物理学 2017-09-13 Dvira Segal , Andrew J. Millis , David R. Reichman

We calculate the conductance through a quantum dot weakly coupled to metallic leads, modeled by the spin-1/2 Anderson model with finite Coulomb repulsion $U$. We adopt the non-crossing approximation method in its finite-$U$ extension…

强关联电子 · 物理学 2009-11-07 D. Gerace , E. Pavarini , L. C. Andreani

We describe linear and nonlinear transport across a single impurity Anderson model quantum dot with intermediate coupling to the leads, i.e., with tunnel coupling of the order of the thermal energy k_B T. The coupling is large enough that…

介观与纳米尺度物理 · 物理学 2015-06-11 Johannes Kern , Milena Grifoni

Contents: (1) Model of a lateral quantum dot system (2) Thermally-activated conduction: onset of the Coulomb blockade oscillations and Coulomb blockade peaks at low temperature (3) Activationless transport through a blockaded quantum dot:…

介观与纳米尺度物理 · 物理学 2014-10-13 L. I. Glazman , M. Pustilnik

We calculate the conductance through a single quantum dot coupled to metallic leads, modeled by the spin 1/2 Anderson model. We adopt the finite-U extension of the noncrossing approximation method. Our results are in good agreement with…

强关联电子 · 物理学 2007-05-23 D. Gerace , E. Pavarini , L. C. Andreani

The onset of nonequilibrium in a driven Anderson-insulator is identified by monitoring the system with two-thermometers. Features of nonequilibrium appear at surprisingly weak drive intensity demonstrating, among other things, that…

无序系统与神经网络 · 物理学 2024-01-31 Z. Ovadyahu

In this Chapter, we present recent theoretical developments on the finite temperature transport of one dimensional electronic and magnetic quantum systems as described by a variety of prototype models. In particular, we discuss the…

强关联电子 · 物理学 2007-05-23 X. Zotos , P. Prelovsek

We present a theory of the DC electron transport in insulators near Anderson-Mott transitions under the influence of coexisting electron correlation and randomness. At sufficiently low temperatures, the DC electron transport in…

强关联电子 · 物理学 2010-10-26 Hiroshi Shinaoka , Masatoshi Imada

We apply the recently proposed quasi-classical approach for a second quantized many-electron Hamiltonian in Cartesian coordinates [J. Chem. Phys. 137, 154107 (2012)] to correlated nonequilibrium quantum transport. The approach provides…

介观与纳米尺度物理 · 物理学 2015-06-12 Bin Li , Tal J. Levy , David W. H. Swenson , Eran Rabani , William H. Miller

Recent experiments have probed quantum dots through transport measurements in the regime where they are described by a two lead Anderson model. In this paper we develop a new method to analytically compute for the first time the…

介观与纳米尺度物理 · 物理学 2009-10-31 Robert Konik , Hubert Saleur , Andreas Ludwig
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