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In this paper, we consider the linearized Vlasov-Poisson equation around an homogeneous Maxwellian equilibrium in a weakly collisional regime: there is a parameter $\eps$ in front of the collision operator which will tend to $0$. Moreover,…

偏微分方程分析 · 数学 2017-09-13 Isabelle Tristani

A general solution to linearized Vlasov equation for an electron electrostatic wave in a homogeneous unmagnetized plasma is derived. The quasi-linear diffusion coefficient resulting from this solution is a continuous function of omega in…

等离子体物理 · 物理学 2015-10-15 Deng Zhou

This paper concerns the linear Landau damping for the two species Vlasov-Poisson system for ions and electrons near Penrose stable equilibria. The result is an extension of the result on the one species Vlasov-Poisson equation by Mouhout…

偏微分方程分析 · 数学 2023-06-22 Lena Baumann , Marlies Pirner

We investigate the impact of weak collisions on Landau damping in the Vlasov-Poisson-Fokker-Planck system on a torus, specifically focusing on its proximity to a Maxwellian distribution. In the case where the Gevrey index satisfies…

偏微分方程分析 · 数学 2025-02-11 Yue Luo

Eulerian simulations of the Vlasov-Poisson equations have been employed to analyze the excitation of slow electrostatic fluctuations (with phase speed close to the electron thermal speed), due to a beam-plasma interaction, and their…

等离子体物理 · 物理学 2017-08-02 Karen Pommois , Francesco Valentini , Oreste Pezzi , Pierluigi Veltri

This paper addresses the linear propagation of an electron wave in a collisionless, inhomogeneous, nonstationary and anisotropic plasma. The plasma is characterized by its distribution function, $f_H$, at zero order in the wave amplitude.…

等离子体物理 · 物理学 2015-01-20 D. Bénisti

Going beyond the linearized study has been a longstanding problem in the theory of Landau damping. In this paper we establish exponential Landau damping in analytic regularity. The damping phenomenon is reinterpreted in terms of transfer of…

偏微分方程分析 · 数学 2012-02-22 Clément Mouhot , Cédric Villani

We focus our attention on some relevant aspects of the beam-plasma instability in order to refine some features of the linear and non-linear dynamics. After a re-analysis of the Poisson equation and of the assumption dealing with the…

等离子体物理 · 物理学 2020-10-23 Nakia Carlevaro , Matteo Del Prete , Giovanni Montani , Fabio Squillaci

Quantum field theory is applied to study the interaction of an electron plasma with an intense neutrino flux. A connection is established between the field theory results and classical kinetic theory. The dispersion relation and damping…

高能物理 - 唯象学 · 物理学 2009-10-31 Luis Bento

We consider the nonlinear Poisson-Boltzmann equation in the context of electrostatic models for a biological macromolecule, embedded in a bounded domain containing a solution of an arbitrary number of ionic species which is not necessarily…

偏微分方程分析 · 数学 2022-04-26 José A. Iglesias , Svetoslav Nakov

In Newtonian gravity, a self-gravitating collisionless gas around a massive object such as a star or a planet is modeled via the Vlasov--Poisson system with an external Kepler potential. The presence of this attractive potential allows for…

偏微分方程分析 · 数学 2026-05-06 Sanchit Chaturvedi , Jonathan Luk

Consider 1D Vlasov-poisson system with a fixed ion background and periodic condition on the space variable. First, we show that for general homogeneous equilibria, within any small neighborhood in the Sobolev space W^{s,p} (p>1,s<1+(1/p))…

偏微分方程分析 · 数学 2015-05-18 Zhiwu Lin , Chongchun Zeng

This review presents an upgraded wave theory adapted to the high fluctuation level of driven realistic i.e. non-idealized plasmas. Above all, this means giving up the well-known concept of a linear wave theory in favor of a thoroughly…

等离子体物理 · 物理学 2022-05-18 Hans Schamel

We investigate nonlinear Landau damping for the two-species screened Vlasov-Poisson system with large initial distributions on the phase space $\mathbb{R}^d \times \mathbb{R}^d$ (where $d \geq 3$). Under a structural quasi-neutrality…

偏微分方程分析 · 数学 2026-05-06 Yi Wang , Meixia Xiao , Hang Xiong

Previously developed method for finding asymptotic solutions of Vlasov equations using two-dimensional (in coordinate x and time t) Laplace transform is here applied to consider transversal oscillations and waves in low-collision…

等离子体物理 · 物理学 2007-05-23 V. N. Soshnikov

Long-lived, spatially localized, and temporally oscillating nonlinear excitations are predicted by numerical simulation of coupled Gross-Pitaevskii equations. These oscillons closely resemble the time-periodic breather solutions of the…

量子气体 · 物理学 2015-03-05 Shih-Wei Su , Shih-Chuan Gou , I-Kang Liu , Ashton S. Bradley , Oleksandr Fialko , Joachim Brand

We consider the spatially inhomogeneous Landau equation with soft potentials, including the case of Coulomb interactions. First, we establish the existence of solutions for a short time, assuming the initial data is in a fourth-order…

偏微分方程分析 · 数学 2018-05-30 Christopher Henderson , Stanley Snelson , Andrei Tarfulea

We study the dispersion properties of electron plasma waves, or plasmons, which can be excited in quantum plasmas in the nonlinear regime. In order to describe nonlinear electron response to finite amplitude plasmons, we apply the Volkov…

量子气体 · 物理学 2023-10-13 F. Haas , J. T. Mendonça , H. Terças

The Nekrasov-Shatashvili limit for the low-energy behavior of N=2 and N=2* supersymmetric SU(2) gauge theories is encoded in the spectrum of the Mathieu and Lam'e equations, respectively. This correspondence is usually expressed via an…

高能物理 - 理论 · 物理学 2015-09-01 Gokce Basar , Gerald V. Dunne

The nonlinear theory of dust-acoustic waves (DAWs) with Landau damping is studied in an unmagnetized dusty negative-ion plasma in the extreme conditions when the free electrons are absent. The cold massive charged dusts are described by…

等离子体物理 · 物理学 2014-07-18 A. Barman , A. P. Misra