中文
相关论文

相关论文: Transport through Quantum Dots: Analytic Results f…

200 篇论文

By mapping steady-state nonequilibrium to an effective equilibrium, we formulate nonequilibrium problems within an equilibrium picture where we can apply existing equilibrium many-body techniques to steady-state electron transport problems.…

强关联电子 · 物理学 2015-06-25 J. E. Han

Scattering theory is a standard tool for the description of transport phenomena in mesoscopic systems. Here, we provide a detailed derivation of this method for nano-scale conductors that are driven by oscillating electric or magnetic…

统计力学 · 物理学 2020-06-01 Kay Brandner

We study a system consisting of a Luttinger liquid coupled to a quantum dot on the boundary. The Luttinger liquid is expressed in terms of fermions interacting via density-density coupling and the dot is modeled as an interacting resonant…

强关联电子 · 物理学 2020-06-09 Colin Rylands , Natan Andrei

We demonstrate that the zero-temperature conductance of the Anderson model can be calculated within the Landauer formalism combined with static density functional theory (DFT). The proposed approximate functional is based on…

介观与纳米尺度物理 · 物理学 2015-05-28 G. Stefanucci , S. Kurth

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 analyze the nonequilibrium transport properties of a parallel double quantum dot in terms of its full counting statistics (FCS). The parameters of the setup are assumed to be such that both subsystems are driven into the Kondo regime.…

介观与纳米尺度物理 · 物理学 2011-11-04 D. Breyel , A. Komnik

We study the Kondo effect in a single quantum dot system with two or three orbitals by using the Bethe-ansatz exact solution at zero temperature and the non-crossing approximation at finite temperatures. For the two-orbital Kondo effect,…

介观与纳米尺度物理 · 物理学 2009-11-11 Rui Sakano , Norio Kawakami

We study the differential conductance, spectral density and magnetization, for a quantum dot coupled to two conducting leads as a function of bias voltage, magnetic field and temperature. The system is modeled with the Anderson model solved…

强关联电子 · 物理学 2009-11-11 A. A. Aligia

In this contribution we review the theory of integrability of quantum systems in one spatial dimension. We introduce the basic concepts such as the Yang-Baxter equation, commuting currents, and the algebraic Bethe ansatz. Quite extensively…

强关联电子 · 物理学 2009-11-11 Andreas Klümper

We solve a Schrodinger equation for inelastic quantum transport that retains full quantum coherence, in contrast to previous rate or Boltzmann equation approaches. The model Hamiltonian is the zero temperature 1d Holstein model for an…

强关联电子 · 物理学 2009-10-30 Janez Bonca , S. A. Trugman

A transport methodology to study the electron transport between quantum dots arrays based in Transfer Hamiltonian approach is presented. The interactions between the quantum dots and between the quantum dots and the electrodes are…

介观与纳米尺度物理 · 物理学 2012-05-10 S. Illera , N. Garcia-Castello , J. D. Prades , A. Cirera

Linear conductance through a quantum dot is calculated under a finite magnetic field using the modified perturbation theory. The method is based on the second-order perturbation theory with respect to the Coulomb repulsion, but the…

介观与纳米尺度物理 · 物理学 2009-10-31 Osamu Takagi , Tetsuro Saso

We investigate the transport through a few-level quantum system described by a Markovian master equation with temperature- and particle-density dependent chemical potentials. From the corresponding Onsager relations we extract linear…

量子气体 · 物理学 2014-02-03 Christian Nietner , Gernot Schaller , Tobias Brandes

The Landauer transport formulation is generalized to the case of a dynamic scatterer with an arbitrary energy level structure, weakly coupled to a long ideal noninteracting wire. The two-terminal linear conductance of the device is…

介观与纳米尺度物理 · 物理学 2016-08-31 Yoseph Imry , Ora Entin-Wohlman , Amnon Aharony

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

Signatures of quantum transport are expected to quickly vanish as dissipation is introduced in a system. This dissipation can take several forms, including that of particle loss, which has the consequence that the total probability current…

We present a general method for calculating coherent electronic transport in quantum wires and tunnel junctions. It is based upon a real space high order finite difference representation of the single particle Hamiltonian and wave…

材料科学 · 物理学 2007-05-23 Petr A. Khomyakov , Geert Brocks

A numerical renormalization-group study of the conductance through a quantum wire side-coupled to a quantum dot is reported. The temperature and the dot-energy dependence of the conductance are examined in the light of a recently derived…

介观与纳米尺度物理 · 物理学 2010-01-13 A. C. Seridonio , M. Yoshida , L. N. Oliveira

Non-equilibrium Green's function technique has been used to calculate spin-dependent electronic transport through a quantum dot in the Kondo regime. The dot is described by the Anderson Hamiltonian and is coupled either symmetrically or…

其他凝聚态物理 · 物理学 2009-11-11 R. Swirkowicz , M. Wilczynski , J. Barnas

This paper establishes new connections between many-body quantum systems, One-body Reduced Density Matrices Functional Theory (1RDMFT) and Optimal Transport (OT), by interpreting the problem of computing the ground-state energy of a finite…

数学物理 · 物理学 2021-07-22 Dario Feliciangeli , Augusto Gerolin , Lorenzo Portinale