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A dynamic 3D Green's function for the homogeneous, isotropic and viscoelastic (of the Zener type) half-space is derived in a closed form. The results obtained here can be used as either stand-alone solutions for simple problems or in…

偏微分方程分析 · 数学 2024-01-17 Tsviatko V. Rangelov , Petia S. Dineva , George D. Manolis

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

A review of electronic dynamics of single-impurity and many-impurity Anderson models is contained in this report. Those models are used widely for many of the applications in diverse fields of interest, such as surface physics, theory of…

强关联电子 · 物理学 2015-03-04 A. L. Kuzemsky

Many features of granular media can be modeled by a fluid of hard spheres with inelastic collisions. Under rapid flow conditions, the macroscopic behavior of grains can be described through hydrodynamic equations accounting for dissipation…

统计力学 · 物理学 2007-05-23 V. Garzo , J. W. Dufty

A recently introduced particle-based model for fluid dynamics with effective excluded volume interactions is analyzed in detail. The interactions are modeled by means of stochastic multiparticle collisions which are biased and depend on…

软凝聚态物质 · 物理学 2007-05-23 Thomas Ihle , Erkan Tuzel

Many important properties of granular fluids can be represented by a system of hard spheres with inelastic collisions. Traditional methods of nonequilibrium statistical mechanics are effective for analysis and description of the inelastic…

软凝聚态物质 · 物理学 2009-11-07 James W. Dufty , J. Javier Brey , James Lutsko

A Green's function formalism is used to calculate the spectrum of localized modes of an impurity layer implanted within a ferromagnetic thin film. The equations of motion for the Green's functions are determined in the framework of the…

无序系统与神经网络 · 物理学 2009-11-10 R. V. Leite , B. T. F. Morais , J. Milton Pereira , R. N. Costa Filho

This paper presents an extended version of the article [Franz, S., Kopteva, N.: J. Differential Equations, 252 (2012)]. The main improvement compared to the latter is in that here we additionally estimate the mixed second-order derivative…

偏微分方程分析 · 数学 2022-12-23 Sebastian Franz , Natalia Kopteva

We consider a two-dimensional diffusion process in a two-layered plane, governed by distinct covariance matrices in the upper and lower half-planes and by two drift vectors pointed away from the $x$-axis. We first analyze the case where the…

概率论 · 数学 2025-12-11 Sandro Franceschi , Irina Kourkova , Maxence Petit

By combining methods of kinetic and density functional theory, we present a description of molecular fluids which accounts for their microscopic structure and thermodynamic properties as well as for the hydrodynamic behavior. We focus on…

介观与纳米尺度物理 · 物理学 2015-05-18 Umberto Marini Bettolo Marconi , Simone Melchionna

We study the autophoretic motion of a spherical active particle interacting chemically and hydrodynamically with its fluctuating environment in the limit of rapid diffusion and slow viscous flow. Then, the chemical and hydrodynamic fields…

软凝聚态物质 · 物理学 2024-11-04 Günther Turk , Ronojoy Adhikari , Rajesh Singh

We present a rigorous framework that combines single-particle Green's function theory with density functional theory based on a separation of electron-electron interactions into short-range and long-range components. Short-range…

化学物理 · 物理学 2018-06-07 Alexei A. Kananenka , Dominika Zgid

We consider a model describing the behavior of a mixture of two incompressible fluids with the same density in isothermal conditions. The model consists of three balance equations: continuity equation, Navier-Stokes equation for the mean…

数学物理 · 物理学 2015-05-20 A. Berti , V. Berti , D. Grandi

Retarded or frequency-dependent hydrodynamic interactions are relevant for velocity relaxation of colloidal particles immersed in a fluid, sufficiently close that their flow patterns interfere. The interactions are also important for…

流体动力学 · 物理学 2019-06-26 B. U. Felderhof

We generalize the methods used in the theory of correlation dynamics and establish a set of equations of motion for many-body correlation green's functions in the non-relativistic case. These non-linear and coupled equations of motion…

核理论 · 物理学 2015-06-26 Shun-Jin Wang , Wei Zuo , Wolfgang Cassing

A domain integral method employing a specific Green's function (i.e., incorporating some features of the global problem of wave propagation in an inhomogeneous medium) is developed for solving direct and inverse scattering problems relative…

Hydrodynamics provides a universal description of interacting quantum field theories at sufficiently long times and wavelengths, but breaks down at scales dependent on microscopic details of the theory. In the vicinity of a quantum critical…

高能物理 - 理论 · 物理学 2021-08-11 Daniel Arean , Richard A. Davison , Blaise Goutéraux , Kenta Suzuki

A general approach for derivation of the spectral relations for the multitime correlation functions is presented. A special attention is paid to the consideration of the non-ergodic (conserving) contributions and it is shown that such…

统计力学 · 物理学 2014-02-17 A. M. Shvaika

The Green's function method has applications in several fields in Physics, from classical differential equations to quantum many-body problems. In the quantum context, Green's functions are correlation functions, from which it is possible…

介观与纳米尺度物理 · 物理学 2016-10-14 Mariana M. Odashima , Beatriz G. Prado , E. Vernek

The spectral functions are studied in conjunction with the dyadic Green's functions for various media. The dyadic Green's functions are found using the eigenfunction expansion method for homogeneous, inhomogeneous, periodic, lossless,…

光学 · 物理学 2015-05-12 W. C. Chew , W. E. I Sha , Q. I. Dai