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High-energy particles stream during coronal mass ejections or flares through the plasma of the solar wind. This causes instabilities, which lead to wave growth at specific resonant wave numbers, especially within shock regions. These…

太阳与恒星天体物理 · 物理学 2013-04-01 Sebastian Lange , Felix Spanier , Markus Battarbee , Rami Vainio , Timo Laitinen

Whistler waves are thought to play an essential role in the dynamics of collisionless shocks. We use the magnetospheric multiscale (MMS) spacecraft to study whistler waves around the lower hybrid frequency, upstream of 11…

A particle acceleration mechanism by radiation pressure of precursor waves in a relativistic shock is studied. For a relativistic, perpendicular shock with the upstream bulk Lorentz factor of $\gamma_1 \gg 1$, large amplitude…

天体物理学 · 物理学 2009-11-13 Masahiro Hoshino

The origins and properties of large amplitude whistler wave packets in the solar wind are still unclear. In this Letter we utilise single spacecraft electric and magnetic field waveform measurements from the ARTEMIS mission to calculate the…

空间物理 · 物理学 2016-09-23 D. Stansby , T. S. Horbury , C. H. K. Chen , L. Matteini

It is shown that a sub-luminal electromagnetic plasma wave, propagating in phase with a background sub-luminal gravitational wave in a dispersive medium, can undergo parametric amplification. For this phenomena to occur, the dispersive…

等离子体物理 · 物理学 2023-04-05 Swadesh M. Mahajan , Felipe A. Asenjo

The resonant generation of relativistic plasma waves and plasma wave guiding by two co-propagating laser pulses has been studied. By proper timing between guiding and driver pulses, a resonant interaction occurs, which generates a…

A spin-rotation symmetry in spin-orbit coupled two-dimensional electron systems gives rise to a long-lived spin excitation that is robust against short-range impurity scattering. The influence of a constant in-plane electric field on this…

材料科学 · 物理学 2007-12-18 P. Kleinert , V. V. Bryksin

Resonant interactions between high energy runaway electrons (REs) and whistler waves are a promising mechanism for RE mitigation in tokamak plasmas. While prior studies have largely relied on quasi-linear diffusion models in simplified…

等离子体物理 · 物理学 2025-09-17 Yashika Ghai , D. Del-Castillo-Negrete , D. A. Spong , M. T. Beidler

Excitable waves arise in many spatially-extended systems of either biological, chemical, or physical nature due to the interplay between local reaction and diffusion processes. Here we demonstrate that similar phenomena are encoded in the…

斑图形成与孤子 · 物理学 2019-05-08 Francesco Marino , Giovanni Giacomelli

It is shown that stationary vortex structures can be excited in a ferrite film. This is the first proposal for creating vortex structures in the important cm and mm wavelength ranges. It is shown that both linear and nonlinear structures…

The non-inductive current start-up by multi-harmonic electron cyclotron wave has been systematically investigated in the EXL-50U spherical torus. Significant enhancements of the driven current with increasing number of resonance layers have…

Five-minutes oscillations is one of the basic properties of solar convection. Observations show mixture of a large number of acoustic wave fronts propagating from their sources. We investigate the process of acoustic waves excitation from…

太阳与恒星天体物理 · 物理学 2015-05-20 I. N. Kitiashvili , A. G. Kosovichev , N. N. Mansour , A. A. Wray

In the Earth's magnetosheath (MSH), several processes contribute to energy dissipation and plasma heating, one of which is wave-particle interactions between whistler waves and electrons. However, the overall impact of whistlers on electron…

As an application of the completely general, ideal two-fluid analysis of waves in a warm ion-electron plasma, where six unique wave pair labels (S, A, F, M, O, and X) were identified, we here connect to the vast body of literature on…

等离子体物理 · 物理学 2021-04-22 Jordi De Jonghe , Rony Keppens

The propagation of a gravitational wave (GW) through a magnetized plasma is considered. In particular, we study the excitation of fast magnetosonic waves (MSW) by a gravitational wave, using the linearized general-relativistic hydromagnetic…

天体物理学 · 物理学 2014-10-13 D. Papadopoulos , N. Stergioulas , L. Vlahos , J. Kuijpers

Spacecraft observations showed that electron heat conduction in the solar wind is probably regulated by whistler waves, whose origin and efficiency in electron heat flux suppression is actively investigated. In this paper, we present…

空间物理 · 物理学 2024-01-04 Ilya V. Kuzichev , Ivan Y. Vasko , Anton V. Artemyev , Stuart D. Bale , Forrest S. Mozer

The Magnetospheric Multiscale (MMS) mission has observed electron whistler waves at the center and at the edges of magnetic holes in the dayside magnetosheath. The magnetic holes are nonlinear mirror structures since their magnitude is…

We report for the first time on triadic resonances in a rotating convection system. Using direct numerical simulations, we find that convective modes in a rotating spherical fluid can excite a pair of inertial modes whose frequencies and…

流体动力学 · 物理学 2020-12-30 Yufeng Lin

The influence of the inelastic nature of electron scattering by surface excitations of liquid helium (ripplons) on the shape of magnetoconductivity oscillations induced by resonance microwave (MW) excitation is theoretically studied. The MW…

介观与纳米尺度物理 · 物理学 2015-05-25 Yuriy P. Monarkha

We show that long-range and robust acoustic pulling can be achieved by using a pair of one-way chiral surface waves supported on the interface between two phononic crystals composed of spinning cylinders with equal but opposite spinning…

经典物理 · 物理学 2021-02-24 Neng Wang , Ruo-Yang Zhang , C. T. Chan