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相关论文: Global classical solutions to the ionic Vlasov-Poi…

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The Vlasov-Poisson system describes interacting systems of collisionless particles. For solutions with small initial data in three dimensions it is known that the spatial density of particles decays like $t^{-3}$ at late times. In this…

偏微分方程分析 · 数学 2007-05-23 Hyung Ju Hwang , Alan D. Rendall , Juan J. L. Velazquez

In this paper we establish global existence and uniqueness of the solution to the three-dimensional Vlasov-Poisson system in presence of point charges in case of repulsive interaction. The present analysis extends an analogeous…

偏微分方程分析 · 数学 2015-05-18 Carlo Marchioro , Evelyne Miot , Mario Pulvirenti

Due to ion-electron collisions, it is impossible to derive any two-fluid model for plasma as a direct hydrodynamic limit of the Vlasov-Poisson-Landau system for ions and electrons. At the same time, electrons are much lighter than their ion…

偏微分方程分析 · 数学 2023-01-04 Patrick Flynn , Yan Guo

The kinetic theory of rarefied gases and numerical schemes based on the Boltzmann equation have evolved to the cornerstone of non-equilibrium gas dynamics. However, their counterparts in the dense regime remain rather exotic for practical…

计算物理 · 物理学 2023-08-14 Mohsen Sadr , M. Hossein Gorji

We present the theory and implementation of a Poisson-Boltzmann implicit solvation model for electrolyte solutions. This model can be combined with arbitrary electronic structure methods that provide an accurate charge density of the…

计算物理 · 物理学 2020-01-08 Christopher J. Stein , John M. Herbert , Martin Head-Gordon

The spherically symmetric Einstein-Vlasov system in Schwarzschild coordinates (i.e. polar slicing and areal radial coordinate) is considered. An improved continuation criterion for global existence of classical solutions is given. Two other…

广义相对论与量子宇宙学 · 物理学 2011-08-04 Hakan Andreasson

In this paper, a nonuniform size modified Poisson-Boltzmann ion channel (nuSMPBIC) model is presented as a nonlinear system of an electrostatic potential and multiple ionic concentrations. It mixes nonlinear algebraic equations with a…

数值分析 · 数学 2022-09-14 Dexuan Xie

The quasi-neutral hybrid model with kinetic ions and fluid electrons is a promising approach for bridging the inherent multi-scale nature of many problems in space and laboratory plasmas. Here, a novel, implicit, particle-in-cell based…

等离子体物理 · 物理学 2018-11-14 A. Stanier , L. Chacón , G. Chen

We formulate a generalized self-consistent stochastic quantum kinetic theory for finite-temperature ultracold Bose gases interacting via a generic long-range interaction, applicable to a broad range of systems, by means of Keldysh…

量子气体 · 物理学 2025-07-28 Nick P. Proukakis , Gerasimos Rigopoulos , Alex Soto

This paper is concerned with the existence, shape and dynamical stability of infinite-energy equilibria for a general class of spatially homogeneous kinetic equations in space dimensions $d \geq 3$. Our results cover in particular…

数学物理 · 物理学 2013-09-30 Federico Bassetti , Lucia Ladelli , Daniel Matthes

The time evolution of a collisionless plasma is modeled by the Vlasov-Maxwell system which couples the Vlasov equation (the transport equation) with the Maxwell equations of electrodynamics. We only consider a 'two-dimensional' version of…

最优化与控制 · 数学 2021-03-02 Jörg Weber

We investigate an evolutive system of non-linear partial differential equations derived from Oldroyd models on Non-Newtonian flows. We prove global existence of weak solutions, in the case of a smooth bounded domain, for general initial…

偏微分方程分析 · 数学 2012-09-04 Olfa Bjaoui , Mohamed Majdoub

Resolving numerically Vlasov-Poisson equations for initially cold systems can be reduced to following the evolution of a three-dimensional sheet evolving in six-dimensional phase-space. We describe a public parallel numerical algorithm…

计算物理 · 物理学 2016-06-29 Thierry Sousbie , Stéphane Colombi

Starting with a microscopic (individual-based) Brownian dynamics model of charged particles (ions), its macroscopic description is derived as a system of partial differential equations that govern the evolution of ion concentrations in…

计算物理 · 物理学 2025-06-25 Jinyuan Zhang , Radek Erban

The motion of a collisionless plasma - a high-temperature, low-density, ionized gas - is described by the Vlasov-Maxwell (VM) system. These equations are considered in one space dimension and two momentum dimensions without the assumption…

偏微分方程分析 · 数学 2016-04-18 Robert Glassey , Stephen Pankavich , Jack Schaeffer

We study the geometric particle-in-cell methods for an electrostatic hybrid plasma model. In this model, ions are described by the fully kinetic equations, electron density is determined by the Boltzmann relation, and space-charge effects…

数值分析 · 数学 2026-03-26 Yingzhe Li

The rock-paper-scissors game, commonly played in East Asia, gives a simple model to understand physical, biological, psychological and other problems. The interacting rock-paper-scissors particle system is a point of contact between the…

统计力学 · 物理学 2021-04-13 Yoshiaki Itoh

We construct a unique global-in-time solution to the two species Vlasov-Poisson-Boltzmann system in convex domains with the diffuse boundary condition, which can be viewed as one of the ideal scattering boundary model. The construction…

偏微分方程分析 · 数学 2019-06-07 Yunbai Cao

We derive a nonlinear equation governing dynamics of short-wavelength longitudinal waves in ultrarelativistic electron-positron-ion plasmas. In contrast to the recent work by Lashkin [Phys. Plasmas {\textbf{27}}, 102302 (2020)], where a…

等离子体物理 · 物理学 2021-07-28 V. M. Lashkin

We study the finite Larmor radius regime for the Vlasov-Poisson system. The magnetic field is assumed to be uniform. We investigate this non linear problem in the two dimensional setting. We derive the limit model by appealing to…

偏微分方程分析 · 数学 2015-11-03 Mihaï Bostan , Aurélie Finot , Maxime Hauray