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Propagation of the finite amplitude electromagnetic wave through the partially spin-polarized degenerate plasmas leads to the instability. The instability happens at the interaction of the electromagnetic wave with the small frequency…

等离子体物理 · 物理学 2023-08-02 Pavel A. Andreev

Straightforward method for the derivation of linearized version of stochastic stability analysis of the nonlinear differential equations is presented. Methods for the study of large time behavior of the moments are exposed. These general…

数学物理 · 物理学 2012-12-07 Gyorgy Steinbrecher , Xavier Garbet

The conditions for the excitation of current and voltage oscillations in the plasma of a three-electrode current and voltage stabilizer are experimentally investigated. It was found that in the regimes under consideration, the plasma has…

等离子体物理 · 物理学 2021-03-03 A. S. Mustafaev , A. Yu. Grabovskiy , B. D. Klimenkov

In this paper, extending previous results of \cite{J1}, we obtain pointwise nonlinear stability of periodic traveling reaction-diffusion waves, assuming spectral linearized stability, under nonlocalized perturbations. More precisely, we…

偏微分方程分析 · 数学 2016-05-06 Soyeun Jung , Kevin Zumbrun

The hot electron-positron unmagnetized plasma with small fraction of cold electron-ion plasma is investigated. The modulational interactions of the electromagnetic waves and the electron-sound waves are studied. The possibility of soliton…

天体物理学 · 物理学 2009-10-31 N. L. Shatashvili , J. I. Javakhishvili , H. Kaya

We consider the Adlam-Allen (AA) system of partial differential equations which, arguably, is the first model that was introduced to describe solitary waves in the context of propagation of hydrodynamic disturbances in collisionless…

In this work, a systematic study, examining the propagation of periodic and solitary wave along the magnetic field in a cold collision-free plasma, is presented. Employing the quasi-neutral approximation and the conservation of momentum…

斑图形成与孤子 · 物理学 2020-10-28 G. Abbas , P. G. Kevrekidis , J. E. Allen , V. Koukouloyannis , D. J. Frantzeskakis , N. Karachalios

The thermal stability of a weakly magnetized, rotating, stratified, optically thin plasma is studied by means of linear-perturbation analysis. We derive dispersion relations and criteria for stability against axisymmetric perturbations that…

星系天体物理 · 物理学 2015-06-05 Carlo Nipoti , Lorenzo Posti

Kinetic simulations and theory demonstrate that whistler waves can excite oblique, short-wavelength fluctuations through secondary drift instabilities if a population of sufficiently cold plasma is present. The excited modes lead to heating…

等离子体物理 · 物理学 2021-04-20 Vadim Roytershteyn , Gian Luca Delzanno

The instability and nonlinear evolution of directional ocean waves is investigated numerically by means of simulations of the governing kinetic equation for narrow-band surface waves. Our simulation results reveal the onset of the…

流体动力学 · 物理学 2015-05-14 Bengt Eliasson , Padma K. Shukla

A constant intensity beam that propagates into a stationary plasma results in a bump-on-tail feature in velocity space. This results in an instability that transfers kinetic energy from the plasma to the electric field. We show that there…

等离子体物理 · 物理学 2024-11-26 Lukas Einkemmer

A rigorous and most general covariant kinetic formalism is developed to study the nonlinear waves interaction in relativistic Vlasov plasmas. The typical nonlinear plasma reaction is a nonlinear current measured by the nonlinear plasma…

等离子体物理 · 物理学 2009-11-11 M. Lazar , R. Schlickeiser

The nonlinear propagation of electrostatic solitary waves is studied in a collisionless electron-positron pair plasma consisting of adiabatic cool electrons, mobile cool positrons (or electron holes), hot suprathermal electrons described by…

等离子体物理 · 物理学 2017-11-06 Ashkbiz Danehkar

Properties of modified plasma waves in non-linear electrodynamics are investigated. We consider a cold, uniform, collisionless, and magnetized plasma model. Initially, we also assume small amplitude waves and the non-relativistic…

等离子体物理 · 物理学 2023-06-27 Leonardo P. R. Ospedal , Fernando Haas

The nonlinear propagation of low-frequency circularly polarized waves in a magnetized dusty plasma is analyzed. It is found that wave steepening and shock formation can take place due to the presence of nonlinear quantum vacuum effects,…

天体物理学 · 物理学 2008-11-26 M. Marklund , D. D. Tskhakaya , P. K. Shukla

The nonlinear propagation of electromagnetic waves in pair plasmas, in which the electrostatic potential plays a very important but subdominant role of a "binding glue" is investigated. Several mechanisms for structure formation are…

等离子体物理 · 物理学 2015-05-14 S. M. Mahajan , N. L. Shatashvili , V. I. Berezhiani

Influence of quantum effects on the internal waves and the Rayleigh-Taylor instability in plasma is investigated. It is shown that quantum pressure always stabilizes the RT instability. The problem is solved both in the limit of…

流体动力学 · 物理学 2009-11-13 Vitaly Bychkov , Mattias Marklund , Mikhail Modestov

This paper is devoted to studying of dispersion of waves in the magnetized plasma with the spin and exploring of new methods of the generation wave in the plasma. We consider the dispersion of waves, existed in the plasma in consequence of…

等离子体物理 · 物理学 2012-12-04 P. A. Andreev , L. S. Kuz'menkov

The interstellar medium is a multi-phase, magnetized, and highly turbulent medium. In this paper, we address both theoretical and observational aspects of plasma turbulence in the interstellar medium. We successively consider radio wave…

星系天体物理 · 物理学 2019-12-19 Katia Ferriere

The nonlinear collisional dynamics of coupled driven plasma waves in the presence of background dissipation is studied analytically within kinetic theory. Sufficiently near marginal stability, phase space correlations are poorly preserved…

等离子体物理 · 物理学 2023-05-18 N. M. Pham , V. N. Duarte