中文
相关论文

相关论文: Phonon Eigenspectrum-Based Formulation of the Atom…

200 篇论文

Near-field radiative heat transfer (NFRHT) between irregularly shaped dielectric particles made of SiO2 and morphology characterized by Gaussian random spheres is studied. Particles are modeled using the discrete system Green's function…

应用物理 · 物理学 2023-01-16 Lindsay P. Walter , Eric J. Tervo , Mathieu Francoeur

This paper introduces a new Windowed Green Function (WGF) method for the numerical integral-equation solution of problems of electromagnetic scattering by obstacles in presence of dielectric or conducting half-planes. The WGF method, which…

计算物理 · 物理学 2015-08-05 Oscar Bruno , Mark Lyon , Carlos Perez-Arancibia , Catalin Turc

A characteristic mode (CM) method that relies on a global multi-trace formulation (MTF) of surface integral equations is proposed to compute the modes and the resonance frequencies of microstrip patch antennas with finite dielectric…

计算工程、金融与科学 · 计算机科学 2023-10-24 Ran Zhao , Yuyu Lu , Guang Shang Cheng , Wei Zhu , Jun Hu , Hakan Bagci

The theory of the interaction of electrons with acoustic phonons in multilayer nitride-based AlN/GaN nanostructures was developed for the first time at $T\geqslant 0$ using the method of finite-temperature Green's functions and Dyson…

介观与纳米尺度物理 · 物理学 2021-01-20 I. V. Boyko , M. R. Petryk

We describe an approach for calculations of phonon contributions to the electron spectral function, including both quasiparticle properties and satellites. The method is based on a cumulant expansion for the retarded one-electron Green's…

材料科学 · 物理学 2015-06-22 S. M. Story , J. J. Kas , F. D. Vila , M. J. Verstraete , J. J. Rehr

Efficient nonlinear frequency conversion in nanophotonics requires not only strong fundamental field but also precise phase matching among distributed nonlinear sources. Here, we develop the two-dimensional Green's function integral method…

光学 · 物理学 2025-12-23 Chengkang Liang , Quanying Li , Jiale Xu , Pingqi Gao , Jiancan Yu

The single particle Green's function provides valuable information on the momentum and energy-resolved spectral properties for a strongly correlated system. In large-scale numerical calculations using quantum Monte Carlo (QMC), dynamical…

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

Acoustic phonon transport is revealed as a potential radiation-to-conduction transition mechanism for single-digit nanometer vacuum gaps. To show this, we measure heat transfer from a feedback-controlled platinum nanoheater to a laterally…

Problems of heat transport are ubiquitous to various technologies such as power generation, cooling, electronics, and thermoelectrics. In this paper we advocate for the application of the quantum self-consistent reservoir method, which is…

介观与纳米尺度物理 · 物理学 2019-01-30 Roya Moghaddasi Fereidani , Dvira Segal

By using nonequilibrium Green's functions and the equation of motion method, we formulate a self-consistent field theory for the electron transport through a single molecular junction (SMJ) coupled with a vibrational mode. We show that the…

介观与纳米尺度物理 · 物理学 2015-09-28 Guo-Hui Ding , Bing Dong

We present the detailed treatment of dissipative quantum transport in carbon nanotube field-effect transistors (CNTFETs) using the non-equilibrium Green's function formalism. The effect of phonon scattering on the device characteristics of…

介观与纳米尺度物理 · 物理学 2009-11-13 Siyuranga O. Koswatta , Sayed Hasan , Mark S. Lundstrom , M. P. Anantram , Dmitri E. Nikonov

This paper presents a novel {\em Interpolated Factored Green Function} method (IFGF) for the accelerated evaluation of the integral operators in scattering theory and other areas. Like existing acceleration methods in these fields, the IFGF…

数值分析 · 数学 2021-02-24 Christoph Bauinger , Oscar P. Bruno

The Green-function technique, termed the irreducible Green functions (IGF) method, that is a certain reformulation of the equation-of motion method for double-time temperature dependent Green functions is presented. This method was…

强关联电子 · 物理学 2007-05-23 A. L. Kuzemsky

We numerically investigate thermal transport at solid-solid interfaces with graded intermediate layers whose masses vary exponentially from one side to the other. Using Non-Equilibrium Green's Function and Non-Equilibrium Molecular Dynamics…

Due to their aspect ratio and wide range of thermal conductivities, nanotubes hold significant promise as heat-management nanocomponents. Their practical use is, however, often limited by thermal resistance introduced by structural defects…

材料科学 · 物理学 2025-10-20 Yu-Jie Cen , Sandro Wieser , Georg K. H. Madsen , Jesús Carrete

We aim to provide engineers with an introduction to the non-equilibrium Green's function (NEGF) approach, which provides a powerful conceptual tool and a practical analysis method to treat small electronic devices quantum mechanically and…

介观与纳米尺度物理 · 物理学 2007-05-23 M. P. Anantram , M. S. Lundstrom , D. E. Nikonov

The thermal properties of graphene-based materials are theoretically investigated. The fourth-nearest neighbor force constant method for phonon properties is used in conjunction with both the Landauer ballistic and the non-equilibrium…

材料科学 · 物理学 2012-02-10 Hossein Karamitaheri , Neophytos Neophytou , Mahdi Pourfath , Hans Kosina

We develop a formalism for the evaluation of conduction eigenchannels of atomic-sized contacts from first-principles. The multiple scattering Korringa-Kohn-Rostoker (KKR) Green's function method is combined with the Kubo linear response…

材料科学 · 物理学 2011-11-09 Alexei Bagrets , Nikos Papanikolaou , Ingrid Mertig

An interpolation method for region-to-region acoustic transfer functions (ATFs) based on kernel ridge regression with an adaptive kernel is proposed. Most current ATF interpolation methods do not incorporate the acoustic properties for…

音频与语音处理 · 电气工程与系统科学 2023-03-08 Juliano G. C. Ribeiro , Shoichi Koyama , Hiroshi Saruwatari