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相关论文: Parametric instabilities in magnetized multicompon…

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The hybrid Stimulated Raman Scattering - Two Plasmon Decay instability had shown to play the dominant role for plasma waves excitation and energy absorption at interaction of very intense femtosecond obliquely incident $p$-polarized laser…

等离子体物理 · 物理学 2021-01-04 I. Tsymbalov , D. Gorlova , A. Savel'ev

A linear gyrokinetic particle-in-cell scheme, which is valid for arbitrary perpendicular wavelength $k_\perp\rho_i$ and includes the parallel dynamic along the field line, is developed to study the local electrostatic drift modes in point…

等离子体物理 · 物理学 2017-12-20 Hua-sheng Xie , Yi Zhang , Zi-cong Huang , Wei-ke Ou , Bo Li

We show that in a neutral magnetized plasma there exist microscopic oscillatory modes, with wavelengths of the order of magnitude of the mean interparticle distance, which become unstable when the electron density exceeds a limit…

等离子体物理 · 物理学 2010-06-24 M. Marino , M. Zuin , A. Carati , E. Martines , L. Galgani

The effect on parametric instability growth of pump wave incoherence is treated by deriving a set of equations governing the space-time evolution of the ensemble-average coupled-mode amplitudes and intensities. Particular attention is paid…

等离子体物理 · 物理学 2007-10-12 D. Pesme , R. L. Berger , E. A. Williams , A. Bourdier , A. Bortuzzo-Lesne

The propulsion type plasma in oblique external magnetic field is studied in 2D3V PIC MCC simulations. A periodical structure with maxima of electron and ion densities appears with an increase of an obliqueness of magnetic field. These…

等离子体物理 · 物理学 2017-12-06 Irina Schweigert , Michael Keidar

Lower hybrid (LH) and magneto-sonic (MS) waves are well known modes of magnetized plasma. These modes play important roles in many phenomena. The lower hybrid wave is often employed in magnetic confinement fusion experiments for current…

等离子体物理 · 物理学 2021-02-03 Ayushi Vashistha , Devshree Mandal , Amita Das

We consider the parametric excitation of a Langmuir wave and an electromagnetic wave by gravitational radiation, in a thin plasma on a Minkowski background. We calculate the coupling coefficients starting from a kinetic description, and the…

天体物理学 · 物理学 2009-10-31 Gert Brodin , Mattias Marklund

We study the response of a highly excited 1D gas with pointlike interactions to a periodic modulation of the coupling constant. We calculate the corresponding dynamic structure factors and show that their low-frequency behavior differs…

量子气体 · 物理学 2011-03-24 M. Colomé-Tatché , D. S. Petrov

Magnetic field amplification by relativistic streaming plasma instabilities is central to a wide variety of high-energy astrophysical environments as well as to laboratory scenarios associated with intense lasers and electron beams. We…

等离子体物理 · 物理学 2021-06-02 J. R. Peterson , S. Glenzer , F. Fiuza

Observational evidence in space and astrophysical plasmas with long collisional mean free path suggests that more massive charged particles may be preferentially heated. One possible mechanism for this is the turbulent cascade of energy…

等离子体物理 · 物理学 2018-01-15 M. Barnes , P. Abiuso , W. Dorland

Two-plasmon decay instability emerges as the parametric decay of laser beams into two plasma waves which is expected for hohlraum in inertial confinement fusion. The behavior of this instability in magnetized plasma is investigated in the…

等离子体物理 · 物理学 2024-09-13 S. S. Ghaffari-Oskooei , A. A. Molavi Choobini

The omnipresence of dust particulates in space and astrophysical plasmas has been attracting numerous researchers to study the collective excitation and propagation dynamics of different eigen-mode structures in diversifed astrocosmic…

等离子体物理 · 物理学 2022-11-16 Souvik Das , Ahmed Atteya , Pralay Kumar Karmakar

In this paper we have considered the problem of parametric sound generation in an acoustic resonator flled with a fluid, taking explicitely into account the influence of the nonlinearly generated second harmonic. A simple model is…

混沌动力学 · 物理学 2015-05-13 Isabel Perez-Arjona , Victor J. Sanchez-Morcillo , Victor Espinosa

Using a 2-1/2-dimensional particle-in-cell (PIC) code to simulate the relativistic expansion of a magnetized collisionless plasma into a vacuum, we report a new mechanism in which the magnetic energy is efficiently converted into the…

天体物理学 · 物理学 2008-11-26 Edison Liang , Kazumi Nishimura , Hui Li , S. Peter Gary

We analyzed properties of waves excited by mildly relativistic electron beams propagating along magnetic field with a ring-shape perpendicular momentum distribution in neutral and current-free solar coronal plasmas. These plasmas are…

等离子体物理 · 物理学 2020-03-18 X. Zhou , P. A. Muñoz , J. Büchner , S. Liu

An Electromagnetic (EM) pulse falling on a plasma medium from vacuum can either reflect or propagate inside the plasma depending on whether it is overdense or underdense. In a magnetised plasma, however, there are usually several pass and…

等离子体物理 · 物理学 2021-07-26 Devshree Mandal , Ayushi Vashistha , Amita Das

A non-perturbative method is introduced to measure the particle-particle interaction strengths and in-situ confinement for a vertically aligned dust particle pair in a complex plasma. The intrinsic thermal motion of each particle is…

等离子体物理 · 物理学 2018-10-17 Ke Qiao , Zhiyue Ding , Jie Kong , Mudi Chen , Lorin S. Matthews , Truell W. Hyde

When a moderately intense, few-picoseconds long laser pulse ionizes gas to produce an underdense plasma column, a linear relativistic plasma wave or wake can be excited by the self-modulation instability that may prove useful for…

The electrostatic instabilities driven by the gradients of the density, temperature and magnetic field, are discussed in their application to solar magnetic structures. Strongly growing modes are found for some typical plasma parameters.…

太阳与恒星天体物理 · 物理学 2015-05-14 J. Vranjes , S. Poedts

In a wide variety of natural and laboratory magnetized plasmas, filaments appear as a result of interchange instability. These convective structures substantially enhance transport in the direction perpendicular to the magnetic field.…