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A new evolution pattern for parametric instabilities in the non-linear stage driven by a broadband laser is studied with kinetic particle-in-cell simulations. It is found that an intermittent excitation of parametric instabilities caused by…

等离子体物理 · 物理学 2021-10-12 Qingkang Liu , Enhao Zhang , Wenshuai Zhang , Hongbo Cai , Yanqi Gao , Shaoping Zhu

Type-III-burst radio signals can be mimicked in the laboratory via laser-plasma interaction. Instead of an electron beam generating Langmuir waves (LW) in the interplanetary medium, the LWs are created by a laser interacting with a…

等离子体物理 · 物理学 2021-04-14 F. Pérez , F. Amiranoff , C. Briand , S. Depierreux , M. Grech , L. Lancia , P. Loiseau , J. -R. Marquès , C. Riconda , T. Vinci

An alternative mechanism is proposed for the generation of harmonics of the electron plasma frequency due to the development of explosive instability in a system of interpenetrating electron and proton flows in the solar atmosphere. The…

太阳与恒星天体物理 · 物理学 2019-01-01 V. V. Fomichev , S. M. Fainshtein , G. P. Chernov

There is renewed interest in direct-drive inertial confinement fusion, following the milestone December 2022 3.15 MJ ignition result on the National Ignition Facility. A key obstacle is the control of the two plasmon decay instability.…

The nature of traveling wave solutions to equations of hydrodynamics of a generic three-dimensional electron gas with parabolic dispersion law depends on whether the motion is subsonic or supersonic. Solitons representing localized…

等离子体物理 · 物理学 2018-08-15 Eugene B. Kolomeisky

Vibrational modes and instabilities of a dust particle pair in a terrestrial laboratory complex plasma are investigated employing an analytical method whereby the plasma wakefield induced by an external electric field is modeled using an…

等离子体物理 · 物理学 2015-05-20 Ke Qiao , Lorin Matthews , Truell W. Hyde

The wave instability acts in astrophysical plasmas to redistribute energy and momentum in the absence of frequent collisions. There are many different types of waves, and it is important to quantify the wave energy density and growth rate…

空间物理 · 物理学 2023-04-05 Seong-Yeop Jeong , Clare Watt

The multi-fluid modelling of high-frequency waves in partially ionized plasmas has shown that the behavior of magnetohydrodynamics waves in the linear regime is heavily influenced by the collisional interaction between the different species…

太阳与恒星天体物理 · 物理学 2018-04-04 David Martínez-Gómez , Roberto Soler , Jaume Terradas

The instability of a monoenergetic electron beam in a collisional one-dimensional plasma bounded between grounded walls is considered both analytically and numerically. Collisions between electrons and neutrals are accounted for the plasma…

等离子体物理 · 物理学 2017-01-04 Dmytro Sydorenko , Igor D. Kaganovich , Peter L. G. Vetzek

We examine the electron-ion streaming instabilities driven by drift velocities of the order of the electron thermal velocity in a nonmagnetized plasma by one-dimensional electrostatic particle-in-cell code which adopts an ion-to-electron…

太阳与恒星天体物理 · 物理学 2015-06-16 Jun Guo , Bo Li

It is demonstrated that low frequency shear modes in a strongly coupled, inhomogeneous, dusty plasma can grow on account of an instability involving the dynamical charge fluctuations of the dust grains. The instability is driven by the…

等离子体物理 · 物理学 2009-11-07 Amruta Mishra , P. K. Kaw , A. Sen

It is shown that nonlinear three-wave interaction, described by vector-product type nonlinearities, in pair plasmas implies much more restrictive conditions for a double energy transfer, as compared to electron-ion plasmas.

等离子体物理 · 物理学 2010-07-28 J. Vranjes , S. Poedts

By investigating the nonlinear propagation of high intensity electromagnetic (EM) waves in a pair ion plasma, whose symmetry is broken via contamination by a small fraction of high mass immobile ions, it is shown that this new and…

等离子体物理 · 物理学 2009-11-13 Swadesh M. Mahajan , Nana L. Shatashvili

The long-time evolution of the two-stream instability of a cold ion beam pulse propagating though the background plasma is investigated using a large-scale one-dimensional electrostatic kinetic simulation. The three stages of the…

等离子体物理 · 物理学 2018-02-14 Kentaro Hara , Igor D. Kaganovich , Edward A. Startsev

We study with a 3D PIC simulation discontinuities between an electron-positron pair plasma and magnetized electrons and protons. A pair plasma is injected at one simulation boundary with a speed 0.6$c$ along its normal. It expands into an…

等离子体物理 · 物理学 2023-07-12 M E Dieckmann , D Folini , M Falk , A Bock , P Steneteg , R Walder

A new quasi-neutral model describing the Weibel instability of a high-current relativistic beam propagating through a resistive plasma is developed. It treats beam electrons as kinetic particles, and ambient plasma as a non-relativistic…

等离子体物理 · 物理学 2009-11-13 Anupam Karmakar , Naveen Kumar , Gennady Shvets , Oleg Polomarov , Alexander Pukhov

Electron plasmas confined by an external magnetic field exhibit variations in a two-dimensional plane orthogonal to the confining magnetic field. A nonlinear fluid simulation code to investigate the properties of 2-D electron plasma wave…

等离子体物理 · 物理学 2009-11-13 Dastgeer Shaikh , P. K. Shukla

The theory of the ion cyclotron (IC) electrostatic parametric instabilities of plasma which are driven by the elliptically polarized fast wave (FW) of the finite wavelength is developed. The growth rate of the IC quasimode decay…

等离子体物理 · 物理学 2020-01-07 V. S. Mikhailenko , V. V. Mikhailenko , Hae June Lee

A kinetic equation describing the nonlinear evolution of intense electromagnetic pulses in electron-positron (e-p) plasmas is presented. The modulational instability is analyzed for a relativistically intense partially coherent pulse, and…

等离子体物理 · 物理学 2007-05-23 M. Marklund , B. Eliasson , P. K. Shukla

We perform three dimensional (3D) ideal magnetohydrodynamic (MHD) simulations to study the parametric decay instability of Alfven waves in turbulent plasmas and explore its possible applications in the solar wind. We find that, over a broad…

空间物理 · 物理学 2017-06-16 Mijie Shi , Hui Li , Chijie Xiao , Xiaogang Wang