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相关论文: Non-equilibrium Green's function theory for non-ad…

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We develop nonequilibribrium Green's function based transport theory, which includes effects of nonadiabatic nuclear motion in the calculation of the electric current in molecular junctions. Our approach is based on the separation of slow…

介观与纳米尺度物理 · 物理学 2017-12-20 Vincent F. Kershaw , Daniel S. Kosov

We present quantum electron transport theory that incorporates dynamical effects of motion of atoms on electrode-molecule interfaces in the calculations of the electric current. The theory is based on non-equilibrium Green's functions. We…

介观与纳米尺度物理 · 物理学 2018-08-14 Vincent F. Kershaw , Daniel S. Kosov

The interaction with time-dependent external fields, especially the interplay between time-dependent driving and quantum correlations, changes the familiar picture of electron transport through nanoscale systems. Although the exact solution…

介观与纳米尺度物理 · 物理学 2020-02-13 Thomas D. Honeychurch , Daniel S. Kosov

The molecular junction geometry is modelled in terms of nuclear degrees of freedom that are embedded in a stochastic quantum environment of non-equilibrium electrons. Time-evolution of the molecular geometry is governed via a mean force, a…

介观与纳米尺度物理 · 物理学 2020-10-28 Vincent F. Kershaw , Daniel S. Kosov

The effect of electron-electron scattering on the equilibrium properties of few-electron quantum dots is investigated by means of nonequilibrium Green's functions theory. The ground and equilibrium state is self-consistently computed from…

介观与纳米尺度物理 · 物理学 2013-05-29 K. Balzer , M. Bonitz , R. van Leeuwen , N. E. Dahlen , A. Stan

We develop a theory for the nonequilibrium coherent transport through a mesoscopic region, based on the nonequilibrium Green function technique. The theory requires the weak coupling between the central mesoscopic region and the multiple…

介观与纳米尺度物理 · 物理学 2018-01-17 Yu Zhu , Tsung-han Lin , Qing-feng Sun

Molecule-electrode interfaces in molecular electronic junctions are prone to chemical reactions, structural changes, and localized heating effects caused by electric current. These can be exploited for device functionality or may be…

介观与纳米尺度物理 · 物理学 2020-04-22 Riley J. Preston , Vincent F. Kershaw , Daniel S. Kosov

We present an application of a new formalism to treat the quantum transport properties of fully interacting nanoscale junctions [Phys. Rev. B {\bf 84}, 235428 (2011)]. We consider a model single-molecule nanojunction in the presence of two…

介观与纳米尺度物理 · 物理学 2012-10-15 H. Ness , L. K. Dash

We consider a quantum dot, affected by a local vibrational mode and contacted to macroscopic leads, in the non-equilibrium steady-state regime. We apply a variational Lang-Firsov transformation and solve the equations of motion of the Green…

强关联电子 · 物理学 2015-05-28 T. Koch , J. Loos , A. Alvermann , H. Fehske

We formulate a semiclassical theory for electron transport in open quantum systems with electron-phonon interactions adequate for situations when the system's phonon dynamics is comparable with the electron transport timescale. Starting…

介观与纳米尺度物理 · 物理学 2025-08-26 Maicol A. Ochoa

We present an application of a new formalism to treat the quantum transport properties of fully interacting nanoscale junctions. We consider a model single-molecule nanojunction in the presence of two kinds of electron-vibron interactions.…

介观与纳米尺度物理 · 物理学 2013-04-08 H. Ness , L. K. Dash

This review deals with the nonequilibrium Green's function (NEGF) method applied to the problems of energy transport due to atomic vibrations (phonons), primarily for small junction systems. We present a pedagogical introduction to the…

介观与纳米尺度物理 · 物理学 2013-05-28 Jian-Sheng Wang , Bijay Kumar Agarwalla , Huanan Li , Juzar Thingna

In the present work, we theoretically study the nonlinear regime of charge transport through a quantum dot coupled to the source and drain reservoirs. The investigation is carried out using a nonequilibrium Green's functions formalism…

介观与纳米尺度物理 · 物理学 2015-12-01 Natalya A. Zimbovskaya

Non-equilibrium Green's Function (NGF) method is a powerful tool for studying the evolution of quantum many-body systems. Different types of correlations can be systematically incorporated within the formalism. The time evolution of the…

核理论 · 物理学 2018-01-17 M. H. Mahzoon , P. Danielewicz , A. Rios

We study a system of two non-interacting quantum wires with fermions of opposite chirality with a point contact junction at the origin across which tunneling can take place when an arbitrary time-dependent bias between the wires is applied.…

介观与纳米尺度物理 · 物理学 2022-02-02 Nikhil Danny Babu , Girish S. Setlur

We propose a description of nonequilibrium systems via a simple protocol that combines exchange-correlation potentials from density functional theory with self-energies of many-body perturbation theory. The approach, aimed to avoid double…

强关联电子 · 物理学 2016-06-15 M. Hopjan , D. Karlsson , S. Ydman , C. Verdozzi , C. -O. Almbladh

The interaction between electronic and vibrational degrees of freedom in single-molecule junctions may result from the dependence of the electronic energies or the electronic states of the molecular bridge on the nuclear displacement. The…

介观与纳米尺度物理 · 物理学 2015-06-09 A. Erpenbeck , R. Härtle , M. Thoss

We review one of the most versatile theoretical approaches to the study of time-dependent correlated quantum transport in nano-systems: the non-equilibrium Green's function (NEGF) formalism. Within this formalism, one can treat, on the same…

介观与纳米尺度物理 · 物理学 2022-06-27 M. Ridley , N. W. Talarico , D. Karlsson , N. Lo Gullo , R. Tuovinen

Understanding time-resolved quantum transport is crucial for developing next-generation quantum technologies, particularly in nano- and molecular junctions subjected to time-dependent perturbations. Traditional steady-state approaches to…

介观与纳米尺度物理 · 物理学 2025-10-16 R. Tuovinen , Y. Pavlyukh

We review a recent theoretical development based on non-equilibrium Green's function formalism to study heat transport in nanomechanical devices modeled by phononic systems of coupled quantum oscillators driven by ac forces and connected to…

介观与纳米尺度物理 · 物理学 2015-06-12 Liliana Arrachea , Bruno Rizzo
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