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The nonlinear evolution of an ion ring instability in a low-beta magnetospheric plasma is considered. The evolution of the two-dimensional ring distribution is essentially quasilinear. Ignoring nonlinear processes the time-scale for the…

等离子体物理 · 物理学 2015-05-27 M. Mithaiwala , L. Rudakov1 , G. Ganguli , C. Crabtree

The effects of the non-extensive statistics on the nonlinear propagation of perturbations have been studied within the scope of relativistic second order dissipative hydrodynamics with the non-extensive equation of state. We have shown that…

Motivated by the recent Magnetospheric Multiscale (MMS) observations of oblique electron acoustic waves, we addressed the generation mechanism of the observed waves by utilizing the reductive perturbation technique. The nonlinear…

等离子体物理 · 物理学 2022-12-14 A. Atteya , S. K. EL-Labany , P. K. Karmakar , M. S. Afify

We study weakly nonlinear wave perturbations propagating in a cold nonrelativistic and magnetized ideal quark-gluon plasma. We show that such perturbations can be described by the Ostrovsky equation. The derivation of this equation is…

高能物理 - 唯象学 · 物理学 2019-12-17 D. A. Fogaça , R. Fariello , F. S. Navarra , Y. A. Stepanyants

The propagation properties of ion-acoustic solitary and shock waves in the magnetized viscous plasma with nonthermal trapped electrons are investigated. The Cairns-Gurevich distribution as the electron distribution is considered to describe…

等离子体物理 · 物理学 2025-12-11 Rui Huo , Jiulin Du

It is known that a nonlinear Schr\"odinger equation describes the self-modulation of a large amplitude circularly polarized wave in relativistic electron-positron plasmas in the weakly and strongly magnetized limits. Here, we show that such…

等离子体物理 · 物理学 2023-09-13 Felipe A. Asenjo

The nonlinear propagation of dust-acoustic (DA) waves in a magnetized dusty plasma with a pair of trapped ions is investigated. Starting from a set of hydrodynamic equations for massive dust fluids as well as kinetic Vlasov equations for…

等离子体物理 · 物理学 2017-11-20 A. P. Misra

The propagation of small amplitude stationary profile nonlinear solitary waves in a pair plasma is investigated employing the reductive perturbation technique via well-known Korteweg de Vries (KdV) and modified KdV (mKdV) equations, we tend…

等离子体物理 · 物理学 2024-06-19 Tanvir I. Rajib

We derive the Whitham modulation equations for the Zakharov-Kuznetsov equation via a multiple scales expansion and averaging two conservation laws over one oscillation period of its periodic traveling wave solutions. We then use the Whitham…

斑图形成与孤子 · 物理学 2024-11-12 Gino Biondini , Alexander Chernyavsky

The growth rate of long wavelength kinetic instabilities arising due to the interaction of a collimated beam of relativistic particles and a cold unmagnetized plasma are calculated in the ultra relativistic limit. For sufficiently…

高能天体物理现象 · 物理学 2015-05-19 Itay Rabinak , Boaz Katz , Eli Waxman

The nature of transverse instabilities to dark solitons and dispersive shock waves for the (2+1)-dimensional defocusing nonlinear Schrodinger equation / Gross-Pitaevskii (NLS / GP) equation is considered. Special attention is given to the…

斑图形成与孤子 · 物理学 2015-03-19 M. A. Hoefer , B. Ilan

We have studied the modulation instability of obliquely propagating ion acoustic waves in a collisionless magnetized warm plasma consisting of warm adiabatic ions and two different species of electrons at different temperatures. We have…

等离子体物理 · 物理学 2019-11-06 Sandip Dalui , Anup Bandyopadhyay

The paper studies the drift instability in Kappa-distributed inhomogeneous plasmas. Weak inhomogeneity and local approximation are assumed. The linear dispersion relation is expressed in a novel integral representation that involves the…

等离子体物理 · 物理学 2023-12-27 Ran Guo

We study the nonlinear propagation of electrostatic wave packets in a collisional plasma composed of strongly coupled ions and relativistically degenerate electrons. The equilibrium of ions is maintained by an effective temperature…

等离子体物理 · 物理学 2012-02-24 A. P. Misra , P. K. Shukla

Periodic waves are investigated in a system composed of a Kuramoto-Sivashinsky - Korteweg-de Vries (KS-KdV) equation, which is linearly coupled to an extra linear dissipative equation. The model describes, e.g., a two-layer liquid film…

斑图形成与孤子 · 物理学 2009-11-07 Bao-Feng Feng , Boris A. Malomed , Takuji Kawahara

Nonlinear ion-acoustic cnoidal wave structures are studied in an unmagnetized quantum plasma. Using the reductive perturbation method, a Korteweg-de Vries equation is derived for appropriate boundary conditions and nonlinear periodic wave…

等离子体物理 · 物理学 2016-03-09 Shahzad Mahmood , Fernando Haas

Starting from the Vlasov-Maxwell equations describing the dynamics of various species in a quasi-neutral plasma, an exact relativistic hydrodynamic closure for a special type of water-bag distributions satisfying the Vlasov equation has…

等离子体物理 · 物理学 2023-05-30 Stephan I. Tzenov

We have considered an expansion of solutions of the non-linear equations for both longitudinal and transverse waves in collisionless Maxwellian plasma in series of non-damping overtones of the field E(x,t) and electron velocity distribution…

等离子体物理 · 物理学 2014-11-13 V. N. Soshnikov

The propagation of ion acoustic shocks in nonthermal plasmas is investigated, both analytically and numerically. An unmagnetized collisionless electron-ion plasma is considered, featuring a superthermal (non-Maxwellian) electron…

等离子体物理 · 物理学 2015-06-03 S. Sultana , G. Sarri , I. Kourakis

We study, globaly in time, the velocity distribution $f(v,t)$ of a spatially homogeneous system that models a system of electrons in a weakly ionized plasma, subjected to a constant external electric field $E$. The density $f$ satisfies a…

等离子体物理 · 物理学 2009-10-30 E. Carlen , R. Esposito , J. L. Lebowitz , R. Marra , A. Rokhlenko
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