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200 篇论文

Employing a combination of a sign-free Monte Carlo approach and nonequilibrium Green's function techniques, we study nonequilibrium charge transport in a model heterostructure, where a two-dimensional spin-less Falicov-Kimball system is…

强关联电子 · 物理学 2019-05-03 Martin Žonda , Michael Thoss

We establish a variant of Monge--Kantorovich duality for a constrained optimal transport problem with a continuum of agents, a finite set of alternatives, and general linear constraints. As an application, we revisit the large-market model…

理论经济学 · 经济学 2026-04-06 Koji Yokote

We show how one can measure the signal from slow jumps of a single molecule between metastable positions using a setup where the molecule is fixed to one lead, and one of the coupling strengths is controlled externally. Such a measurement…

介观与纳米尺度物理 · 物理学 2013-04-04 Tero T. Heikkila , Wolfgang Belzig

In this review article, we first briefly introduce the transport theory and quantum molecular dynamics model applied in the study of the heavy ion collisions from low to intermediate energies. The developments of improved quantum molecular…

核理论 · 物理学 2020-05-27 Yingxun Zhang , Ning Wang , Qingfeng Li , Li Ou , Junlong Tian , Min Liu , Kai Zhao , Xizhen Wu , Zhuxia Li

In this communication, we numerically studied disordered quantum transport in a quantum anomalous Hall insulator-superconductor junction based on the effective edge model approach. In particular, we focus on the parameter regime with the…

超导电性 · 物理学 2020-10-21 Jian-Xiao Zhang , Chao-Xing Liu

Using the modified perturbation theory, we theoretically study the nonequilibrium Andreev transport through a quantum dot coupled to normal and superconducting leads (N-QD-S), which is strongly influenced by the Kondo and superconducting…

介观与纳米尺度物理 · 物理学 2015-03-18 Yasuhiro Yamada , Yoichi Tanaka , Norio Kawakami

Single-molecule junctions - nanoscale systems where a molecule is connected to metallic electrodes - offer a unique platform for studying charge, spin and energy transport in non-equilibrium many-body quantum systems, with few parallels in…

介观与纳米尺度物理 · 物理学 2024-11-05 María Camarasa-Gómez , Daniel Hernangómez-Pérez , Jan Wilhelm , Alexej Bagrets , Ferdinand Evers

Molecular conduction operating in dielectric solvent environments are often described using kinetic rates based on Marcus theory of electron transfer at a molecule-metal electrode interface. However, the successive nature of charge transfer…

化学物理 · 物理学 2020-02-18 Henning Kirchberg , Michael Thorwart , Abraham Nitzan

Modeling reactive transport in porous media, using a local chemical equilibrium assumption, leads to a system of advection-diffusion PDE's coupled with algebraic equations. When solving this coupled system, the algebraic equations have to…

数值分析 · 数学 2009-12-22 Amir Laila , Michel Kern

We present an extension of the work of D'Amato and Pastawski on electron transport in a one-dimensional conductor modeled by the tight binding lattice Hamiltonian and in which inelastic scattering is incorporated by connecting each site of…

介观与纳米尺度物理 · 物理学 2009-11-11 Dibyendu Roy , Abhishek Dhar

In many organic molecules the strong coupling of excess charges to vibrational modes leads to the formation of polarons, i.e., a localized state of a charge carrier and a molecular deformation. Incoherent hopping of polarons along the…

介观与纳米尺度物理 · 物理学 2015-05-13 Benjamin B. Schmidt , Matthias H. Hettler , Gerd Schön

Linear and non-linear transport properties through an atomic-size point contact based on oxides two-dimensional electron gas is examined using the tight-binding method and the $\mathbf{k\cdot p}$ approach. The ballistic transport is…

介观与纳米尺度物理 · 物理学 2023-02-01 J. Settino , C. A. Perroni , F. Romeo , V. Cataudella , R. Citro

Impressive advances in the field of molecular spintronics allow one to study electron transport through individual magnetic molecules embedded between metallic leads in the purely quantum regime of single electron tunneling. Besides…

强关联电子 · 物理学 2019-09-05 Alessandro Chiesa , Emilio Macaluso , Paolo Santini , Stefano Carretta , Eva Pavarini

Equilibration times for nuclear matter configurations -- modelling intermediate and high energy nucleus-nucleus collisions -- are evaluated within the semiclassical off-shell transport approach developed recently. The transport equations…

核理论 · 物理学 2009-11-06 W. Cassing , S. Juchem

We develop a theoretical approach to quantum transport through single conjugated organic molecules that accurately accounts for all molecular excited and ground states via a semi-empirical many-body molecular Hamiltonian. We then calculate…

材料科学 · 物理学 2008-12-12 J. P. Bergfield , C. A. Stafford

We give a sufficient and necessary condition for a probability measure $\mu$ on the real line to satisfy the logarithmic Sobolev inequality for convex functions. The condition is expressed in terms of the unique left-continuous and…

概率论 · 数学 2019-06-18 Yan Shu , Michał Strzelecki

The paper deals with the problem of integration of equations of motion in nonholonomic systems. By means of well-known theory of the differential equations with an invariant measure the new integrable systems are discovered. Among them…

可精确求解与可积系统 · 物理学 2007-05-23 V. V. Kozlov

A new theoretical method is introduced to study coherent electron transport in an interacting multilevel quantum dot. The method yields the correct behavior both in the limit of weak and strong coupling to the leads, giving a unified…

介观与纳米尺度物理 · 物理学 2009-10-31 A. Levy Yeyati , F. Flores , A. Martin-Rodero

A plasma transport theory that spans weak to strong coupling is developed from a binary collision picture, but where the interaction potential is taken to be an effective potential that includes correlation effects and screening…

等离子体物理 · 物理学 2016-05-11 Scott D. Baalrud , Jerome Daligault

We explore an idealized theoretical model for the transport of ions within highly asymmetric ionic liquid mixtures. A primitive model (PM)-inspired system serves as a representative for asymmetric ionic materials (such as liquid crystalline…