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The properties of obliquely propagating dissipative electron-acoustic solitary waves (OPdEASWs) have been investigated in a magnetized collisional superthermal plasma consisting of inertial cold electrons, inertialess hot electrons…

等离子体物理 · 物理学 2020-06-04 M. R. Hassan , T. I. Rajib , S. Sultana

This paper is the first in a series devoted to the numerical study of nonlinear interactions of electromagnetic waves with plasma. We start with non-magnetized pair plasmas, where the primary processes are induced (Compton) scattering and…

高能天体物理现象 · 物理学 2022-09-21 Arka Ghosh , Daniel Kagan , Uri Keshet , Yuri Lyubarsky

Based on the known implicit solution for nonlinear plasma waves, an explicit solution was obtained in the form of decomposition into harmonics. The solution obtained exhibits a mechanism for steepening of nonlinear plasma wave as a result…

等离子体物理 · 物理学 2007-05-23 A. G. Khachatryan , S. S. Elbakian

We consider the nonlinear Schr{\"o}dinger equation (NLSE) in 1+1 dimension with scalar-scalar self interaction $\frac{g^2}{\kappa+1} (\psi^\star \psi)^{\kappa+1}$ in the presence of the external forcing terms of the form $r e^{-i(kx +…

斑图形成与孤子 · 物理学 2013-05-30 Fred Cooper , Avinash Khare , Niurka R. Quintero , Franz G. Mertens , Avadh Saxena

The influence of motion of ions and electron temperature on nonlinear one-dimensional plasma waves with velocity close to the speed of light in vacuum is investigated. It is shown that although the wavebreaking field weakly depends on mass…

等离子体物理 · 物理学 2009-10-31 Arsen G. Khachatryan

The modulational instability of dust-acoustic (DA) waves (DAWs), and corresponding DA rogue waves (DARWs) in a realistic space dusty plasma system (containing inertial warm positively and negatively charged dust, isothermal ions, and…

等离子体物理 · 物理学 2017-11-22 N. A. Chowdhury , A. A. Mamun

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

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 nonlinear dynamics of circularly polarized dispersive Alfv{\'e}n wave (AW) envelopes coupled to the driven ion sound waves of plasma slow response is studied in a uniform magnetoplasma. By restricting the wave dynamics to a few number…

等离子体物理 · 物理学 2023-03-07 S. Roy , A. Roy , A. P. Misra

In this paper we give a frame for application of the averaging method to Bose-Einstein condensates (BECs) and obtain an abstract result upon the dynamics of BECs. Using aver- aging method, we determine the location where the modulated…

混沌动力学 · 物理学 2015-05-27 Qihuai Liu , Dingbian Qian

We consider a cubic nonlinear Schroedinger equation with periodic potential. In a semiclassical scaling the nonlinear interaction of modulated pulses concentrated in one or several Bloch bands is studied. The notion of closed mode systems…

偏微分方程分析 · 数学 2007-07-18 Johannes Giannoulis , Alexander Mielke , Christof Sparber

The applied method of the amplitude envelopes give us the possibility to describe a new class of amplitude equations governing the propagation of optical pulses in media with dispersion, dispersionless media and vacuum. We normalized these…

斑图形成与孤子 · 物理学 2007-05-23 Lubomir M. Kovachev

The nonlinear aspects of longitudinal motion of interacting point masses in a lattice are revisited, with emphasis on the paradigm of charged dust grains in a dusty plasma (DP) crystal. Different types of localized excitations, predicted by…

软凝聚态物质 · 物理学 2009-11-10 I. Kourakis , P. K. Shukla

Equations describing the linear evolution of a non-dissipative Langmuir wave in inhomogeneous nonstationary anisotropic plasma without magnetic field are derived in the geometrical optics approximation. A continuity equation is obtained for…

等离子体物理 · 物理学 2015-05-13 I. Y. Dodin , V. I. Geyko , N. J. Fisch

Locked intrinsic localized modes (ILMs) and large amplitude lattice spatial modes (LSMs) have been experimentally measured for a driven 1-D nonlinear cyclic electric transmission line, where the nonlinear element is a saturable capacitor.…

斑图形成与孤子 · 物理学 2018-05-09 S. Shige , K. Miyasaka , W. Shi , Y. Soga , M. Sato , A. J. Sievers

We construct breather and rogue wave solutions of a variable coefficient nonlinear Schr\"odinger equation with an external linear potential. This generalized model describes the nonlinear wave propagation in an inhomogeneous plasma/medium.…

可精确求解与可积系统 · 物理学 2014-07-14 K. Manikandan , M. Senthilvelan

Nonlinear radio waves modulate the plasma, scatter on the modulations, and develop an intermittent power spectrum -- perhaps. Rudiments of theory, numerical simulations, and qualitative modeling of nonlinear scattering are presented.…

高能天体物理现象 · 物理学 2020-02-10 Andrei Gruzinov

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 analytically study plasma solitary waves, or solitons, in a two-dimensional (2D) electron system (ES) placed in close proximity to and between two ideal metallic gates. As a rule, solitons are described using a perturbative approach…

介观与纳米尺度物理 · 物理学 2022-05-20 A. A. Zabolotnykh

Travelling solitary waves in the one-dimensional discrete nonlinear Schr\"{o}dinger equation (DNLSE) with saturable onsite nonlinearity are studied. A variational approximation (VA) for the solitary waves is derived in an analytical form.…

斑图形成与孤子 · 物理学 2015-06-03 M. Syafwan , H. Susanto , S. M. Cox , B. A. Malomed