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A formulation for the parametric instability of electromagnetic (EM) waves in magnetized pair plasma is developed. The linear growth rate of induced Compton scattering is derived analytically for frequencies below the cyclotron frequency…

High Energy Astrophysical Phenomena · Physics 2025-03-14 Rei Nishiura , Shoma F. Kamijima , Masanori Iwamoto , Kunihito Ioka

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…

Plasma Physics · Physics 2020-03-18 X. Zhou , P. A. Muñoz , J. Büchner , S. Liu

The local magnetic field in a Penning-Malmberg trap is found by measuring the temperatures that result when electron plasmas are illuminated by microwaves pulses. Multiple heating resonances are observed as the pulse frequencies are swept.…

Plasma Physics · Physics 2020-03-18 E. D. Hunter , A. Christensen , J. Fajans , T. Friesen , E. Kur , J. S. Wurtele

We demonstrate that in highly magnetized pair plasmas, nonlinear Alfven waves with wave-number $k \leq k_0 = \omega_p^2 /(\delta \omega_B)$ ($\delta =( \delta B)/B_0$ are relative fluctuations of the magnetic field) experience powerful…

High Energy Astrophysical Phenomena · Physics 2026-05-05 Maxim Lyutikov

Turbulence in highly magnetized plasma can be relativistic and induce an electric field comparable to the background magnetic field. Such a strong electric field can affect the emission process of non-thermal electrons. As the first step…

High Energy Astrophysical Phenomena · Physics 2024-03-05 Ryota Goto , Katsuaki Asano

In addition to traditional regimes with monotonously increasing magnetic field, regimes with "magnetic wells" also occur in spherical tokamaks (STs). The magnetic field profile inversion modifies significantly the whole picture of the wave…

Plasma Physics · Physics 2015-06-26 A. D. Piliya , A. Yu. Popov , E. N. Tregubova

Propagation features of circularly polarized (CP) electromagnetic waves in magnetized plasmas are determined by the plasma density and the magnetic field strength. This property can be applied to design a unique plasma photonic device for…

Plasma Physics · Physics 2020-12-30 Takayoshi Sano , Yusuke Tatsumi , Masayasu Hata , Yasuhiko Sentoku

The excitation of electromagnetic (EM) wake waves in electron plasma by an one-dimensional bunch of charged particles has been considered in the presence of intense monochromatic circularly polarized electromagnetic (CPEM) pump wave. In the…

Plasma Physics · Physics 2007-05-23 S. S. Elbakian , H. B. Nersisyan

A particle-in-cell (PIC) simulation study is performed to investigate the discharge asymmetry, higher harmonic generations and electron heating mechanism in a low pressure very high frequency capacitively coupled plasma (CCP) excited by a…

Plasma Physics · Physics 2020-12-02 Sarveshwar Sharma , Nishant Sirse , Miles M Turner

We consider a relativistic plasma containing charged chiral fermions in an external magnetic field, e.g a chirally symmetric quark-gluon plasma created in relativistic heavy ion collisions. We show that triangle anomalies imply the…

High Energy Physics - Theory · Physics 2011-04-22 Dmitri E. Kharzeev , Ho-Ung Yee

The importance of accounting for an ambipolar electrostatic potential or a non-uniform density profile for modelling of inductively coupled discharges is demonstrated. A drastic enhancement is observed of the power transfer into plasma for…

Plasma Physics · Physics 2007-05-23 Oleg V. Polomarov , Constantine E. Theodosiou , Igor D. Kaganovich

In this work, a one-dimensional direct implicit particle-in-cell/Monte Carlo collision (PIC/MCC) code is used to study the capacitive discharge driven under 60 MHz rf power in the background gas of pure argon. The electron-induced secondary…

Plasma Physics · Physics 2023-12-06 Hao Wu , Ran An , Dong Zhong , Wei Jiang , Ya Zhang

Radiation of short-wavelength plasma waves is studied in a cold (Te=0.5eV), large (1.2m length, 70 cm diameter), uniform, Maxwellian laboratory magnetoplasma in the upper-hybrid frequency range. Although the characteristic parameter of…

Plasma Physics · Physics 2007-05-23 Mikhail V. Starodubtsev , Alexander V. Kostrov

Radiofrequency capacitively coupled plasma is studied theoretically using a Particle-in-Cell code. For He discharge, the time-averaged sheaths are in the range of few centimeters. The sheath potential, ion, and electron energy and angular…

Plasma Physics · Physics 2023-09-29 M. Shihab , A. Elbadawy , M. S. Afify , N. El-Siragy

We present the numerical simulations for an electron-beam-driven and loss-cone-driven electron-cyclotron maser (ECM) with different plasma parameters and different magnetic field strengths for a relatively small region and short time-scale…

Solar and Stellar Astrophysics · Physics 2015-06-04 S. Yu , J. G. Doyle , A. Kuznetsov , G. Hallinan , A. Antonova , A. L. MacKinnon , A. Golden

We study the propagation of gravitational waves (GW) in a uniformly magnetized plasma at arbitrary angles to the magnetic field. No a priori assumptions are made about the temperature, and we consider both a plasma at rest and a plasma…

General Relativity and Quantum Cosmology · Physics 2009-11-10 Joachim Moortgat , Jan Kuijpers

Although the physical origin of fast radio bursts (FRBs) remains unknown, magnetars are the most likely candidates. The polarization properties of FRBs offer crucial insights into their origins and radiation mechanisms. Significant circular…

High Energy Astrophysical Phenomena · Physics 2024-08-09 Z. Y. Zhao , F. Y. Wang

In magnetized capacitively coupled radio-frequency discharges operated at low pressure the influence of the magnetic flux density on discharge properties has been studied recently both by experimental investigations and in simulations. It…

A fully relativistic treatment of Bernstein waves in an electron-positron pair plasma has remained too formidable a task owing to the very complex nature of the problem. In this article, we perform contour integration of the dielectric…

Plasma Physics · Physics 2009-11-19 Ramandeep Gill , Jeremy S. Heyl

Phenomena taking place in capacitively coupled plasmas with large electrodes and driven at very high frequencies are studied numerically utilizing a novel energy- and charge-conserving implicit fully electromagnetic particle-in-cell / Monte…

Plasma Physics · Physics 2023-05-17 D. Eremin , E. Kemaneci , M. Matsukuma , T. Mussenbrock , R. P. Brinkmann