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We consider a hydrodynamic model of a quantum dusty plasma. We prove mathematically that the resulting dust ion acoustic plasma waves present the property of being conservative on average. Furthermore, we test this property numerically,…

等离子体物理 · 物理学 2021-02-03 Álvaro G. López , Rustam Ali , Laxmikanta Mandi , Prasanta Chatterjee

In this paper we provide sharp criteria for linear stability or instability of equilibria of collisionless plasmas in the presence of boundaries. Specifically, we consider the relativistic Vlasov-Maxwell system with specular reflection at…

偏微分方程分析 · 数学 2011-12-21 Toan Nguyen , Walter A. Strauss

We study smooth, global-in-time solutions of the relativistic Vlasov-Maxwell system that possess arbitrarily large charge densities and electric fields. In particular, we construct spherically symmetric solutions that describe a thin shell…

数学物理 · 物理学 2018-07-10 Jonathan Ben-Artzi , Simone Calogero , Stephen Pankavich

While a fully relativistic collisionless plasma is modeled by the Vlasov-Maxwell system a good approximation in the non-relativistic limit is given by the Vlasov-Poisson system. We modify the Vlasov-Poisson system so that damping due to the…

数学物理 · 物理学 2016-04-21 Sebastian Bauer

This work is devoted to the numerical simulation of a Vlasov-Poisson model describing a charged particle beam under the action of a rapidly oscillating external electric field. We construct an Asymptotic Preserving numerical scheme for this…

数值分析 · 数学 2015-06-11 Nicolas Crouseilles , Mohammed Lemou , Florian Méhats

In this paper, we propose energy-conserving Eulerian solvers for the two-species Vlasov-Amp\`{e}re (VA) system and apply the methods to simulate current-driven ion-acoustic instability. The algorithm is generalized from our previous work…

数值分析 · 数学 2015-06-19 Yingda Cheng , Andrew J. Christlieb , Xinghui Zhong

The hybrid Vlasov-Maxwell system of equations is suitable to describe a magnetized plasma at scales of the order of or larger than proton kinetic scales. An exact stationary solution is presented by revisiting previous results with a…

等离子体物理 · 物理学 2018-06-06 F. Malara , O. Pezzi , F. Valentini

The perturbative variational formulation of the Vlasov-Maxwell equations is presented up to third order in the perturbation analysis. From the second and third-order Lagrangian densities, respectively, the first-order and second-order…

等离子体物理 · 物理学 2018-12-05 Alain J. Brizard

We consider the plasma confined in a general axisymmetric spatial domain with perfect conducting boundary which reflects particles specularly, and look at a certain class of equilibria, assuming axisymmetry in the problem. We prove a sharp…

偏微分方程分析 · 数学 2019-10-15 Katherine Zhiyuan Zhang

The hybrid kinetic-ion fluid-electron plasma model is widely used to study challenging multi-scale problems in space and laboratory plasma physics. Here, a novel conservative scheme for this model employing implicit particle-in-cell…

等离子体物理 · 物理学 2022-04-13 A. Stanier , L. Chacon

When particle speeds are large the motion of a collisionless plasma is modeled by the relativistic Vlasov Maxwell system. Large time behavior of solutions which depend on one position variable and two momentum variables is considered. In…

偏微分方程分析 · 数学 2010-01-02 Robert Glassey , Stephen Pankavich , Jack Schaeffer

We are interested in developing a numerical method for capturing stationary sheaths, that a plasma forms in contact with a metallic wall. This work is based on a bi-species (ion/electron) Vlasov-Amp{\`e}re model proposed in [3]. The main…

数值分析 · 数学 2018-02-19 Mehdi Badsi , Michel Mehrenberger , Laurent Navoret

We establish a new self-consistent system of equations accounting for a nonminimal coupling of the cooperative gravitational, electromagnetic and pseudoscalar (axion) fields in a multi-component relativistic plasma. The axionic extension of…

广义相对论与量子宇宙学 · 物理学 2013-12-02 Alexander B. Balakin , Ruslan K. Muharlyamov , Alexei E. Zayats

The theory of gauge transformations in linearized gravitation is investigated. After a brief discussion of the fundamentals of the kinetic theory in curved spacetime, the Einstein-Vlasov-Maxwell system of equations in terms of gauge…

等离子体物理 · 物理学 2024-08-06 Lucas Bourscheidt , Fernando Haas

Although the nuclear fusion process has received a great deal of attention in recent years, the amount of mathematical analysis that supports the stability of the system seems to be relatively insufficient. This paper deals with the…

偏微分方程分析 · 数学 2021-11-09 Jin Woo Jang , Robert M. Strain , Tak Kwong Wong

In this article we apply a discrete action principle for the Vlasov--Maxwell equations in a structure-preserving particle-field discretization framework. In this framework the finite-dimensional electromagnetic potentials and fields are…

数值分析 · 数学 2021-01-27 Martin Campos Pinto , Katharina Kormann , Eric Sonnendrücker

This article is devoted to the kinetic description in phase space of magnetically confined plasmas. It addresses the problem of stability near equilibria of the Relativistic Vlasov Maxwell system. We work under the Glassey-Strauss compactly…

偏微分方程分析 · 数学 2021-03-16 Christophe Cheverry , Slim Ibrahim , Dayton Preissl

Two-fluid plasma flow equations describe the flow of ions and electrons with different densities, velocities, and pressures. We consider the ideal plasma flow i.e. we ignore viscous, resistive, and collision effects. The resulting system of…

In high-temperature plasma physics, a strong magnetic field is usually used to confine charged particles. Therefore, for studying the classical mathematical models of the physical problems it needs to consider the effect of external…

数值分析 · 数学 2025-09-05 Anjiao Gu , Yajuan Sun

This paper investigates subcycling of particle orbits in variational, geometric particle-in-cell methods addressing the Vlasov--Maxwell system in magnetized plasmas. The purpose of subcycling is to allow different time steps for different…

计算物理 · 物理学 2020-11-13 Eero Hirvijoki , Katharina Kormann , Filippo Zonta