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相关论文: Methods of nonlinear kinetics

200 篇论文

A systematic study for a single-specie lattice Boltzmann model with frustrated-short range attractive and mid/long-range repulsive-interactions is presented. The equilibrium analysis is performed along the guidelines proposed by [X. Shan,…

软凝聚态物质 · 物理学 2014-02-26 M. Sbragaglia , R. Benzi , M. Bernaschi S. Succi

Quasiparticle dynamics in relativistic plasmas associated with hot, weakly-coupled gauge theories (such as QCD at asymptotically high temperature $T$) can be described by an effective kinetic theory, valid on sufficiently large time and…

高能物理 - 唯象学 · 物理学 2010-02-16 Peter Arnold , Guy D. Moore , Laurence G. Yaffe

We study the bosonic Boltzmann-Nordheim kinetic equation, which describes the kinetic regime of weakly interacting bosons with s-wave scattering only. We consider a spatially homogeneous fluid with an isotropic momentum distribution. The…

介观与纳米尺度物理 · 物理学 2008-09-29 Herbert Spohn

Numerical simulations of turbulent flows are well known to pose extreme computational challenges due to the huge number of dynamical degrees of freedom required to correctly describe the complex multi-scale statistical correlations of the…

流体动力学 · 物理学 2025-02-27 Giulio Ortali , Alessandro Gabbana , Nicola Demo , Gianluigi Rozza , Federico Toschi

The Boltzmann collision operator for a dilute granular gas of inelastic rough hard spheres is much more intricate than its counterpart for inelastic smooth spheres. Now the one-body distribution function depends not only on the…

软凝聚态物质 · 物理学 2014-11-10 Andrés Santos

We introduce a new class of nonlocal kinetic equations and nonlocal Fokker-Planck equations associated with an effective generalized thermodynamical formalism. These equations have a rich physical and mathematical structure that can…

统计力学 · 物理学 2007-05-23 Pierre-Henri Chavanis

In this paper, we study the Gevrey regularity of weak solutions for a class of linear and semi-linear kinetic equations, which are the linear model of spatially inhomogeneous Boltzmann equations without an angular cutoff.

偏微分方程分析 · 数学 2009-10-19 Hua Chen , Wei-Xi Li , Chao-Jiang Xu

A new non-perturbative method of solution of the nonlinear Heisenberg equations in the finite-dimensional subspace is illustrated. The method, being a counterpart of the traditional Schrodinger picture method, is based on a finite operator…

量子物理 · 物理学 2016-09-08 L. Mista , R. Filip

The relation between Latttice Boltzmann Method, which has recently become popular, and the Kinetic Schemes, which are routinely used in Computational Fluid Dynamics, is explored. A new discrete velocity model for the numerical solution of…

comp-gas · 物理学 2009-10-31 Michael Junk , S. V. Raghurama Rao

The lattice Boltzmann model is a simplified kinetic method based on the particle distribution function. We use this method to simulate problems in MEMS, in which the velocity slip near the wall plays an important role. It is demonstrated…

comp-gas · 物理学 2007-05-23 Xiaobo Nie , Gary D. Doolen , Shiyi Chen

The Boltzmann kinetic theory for a model of a confined quasi-two dimensional granular mixture derived previously [Garz\'o, Brito and Soto, Phys. Fluids \textbf{33}, 023310 (2021)] is considered further to analyze two different problems.…

软凝聚态物质 · 物理学 2024-03-07 Vicente Garzó , Ricardo Brito , Rodrigo Soto

We present a kinetic theory for inhomogeneous systems with weak long-range interactions. Starting from the Klimontovich equation and using a quasilinear theory, we obtain a closed kinetic equation describing the relaxation of the…

统计力学 · 物理学 2015-06-25 Pierre-Henri Chavanis

We propose a quantum algorithm for solving physical problems represented by the lattice Boltzmann formulation. Specifically, we deal with the case of a single phase, incompressible fluid obeying the Bhatnagar-Gross-Krook model. We use the…

量子物理 · 物理学 2023-04-13 Wael Itani , Katepalli R. Sreenivasan , Sauro Succi

A kinetic equation which combines the quasiparticle drift of Landau's equation with a dissipation governed by a nonlocal and noninstant scattering integral in the spirit of Snider's equation for gases is derived. Consequent balance…

核理论 · 物理学 2009-10-31 Václav Špička , Pavel Lipavský , Klaus Morawetz

In this paper, we establish optimal hypoelliptic estimates for a class of kinetic equations, which are simplified linear models for the spatially inhomogeneous Boltzmann equation without angular cutoff.

偏微分方程分析 · 数学 2011-05-17 Nicolas Lerner , Yoshinori Morimoto , Karel Pravda-Starov

We study the kinetic theory of a weakly interacting quantum field. Assuming a state that is close to homogeneous and stationary, we derive a closed kinetic equation for the rate of change of the occupation numbers, perturbatively in the…

高能物理 - 理论 · 物理学 2025-09-03 Xu-Yao Hu , Vladimir Rosenhaus

We review the non-relativistic Green's-function approach to the kinetic equations for Fermi liquids far from equilibrium. The emphasis is on the consistent treatment of the off-shell motion between collisions and on the non-instant and…

核理论 · 物理学 2017-03-08 P. Lipavsky , K. Morawetz , V. Spicka

We investigate the kinetic theory of two-temperature plasmas for reactive polyatomic gas mixtures. The Knudsen number is taken proportional to the square root of the mass ratio between electrons and heavy-species, and thermal…

等离子体物理 · 物理学 2019-02-05 Jean-Maxime Orlac'H , Vincent Giovangigli , Tatiana Novikova , Pere Roca

The main purpose of this article is to provide a guide to theorems on global properties of solutions to the Einstein-Vlasov system. This system couples Einstein's equations to a kinetic matter model. Kinetic theory has been an important…

广义相对论与量子宇宙学 · 物理学 2016-10-19 Hakan Andreasson

A new nonlocal form of the off-shell kinetic equation is derived. While being equivalent to the Kadanoff--Baym and Botermans--Malfliet formulations in the range of formal applicability, it has certain advantages beyond this range. It…

核理论 · 物理学 2009-08-05 Yu. B. Ivanov , D. N. Voskresensky