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The origin of pulsar radio emission is one of the old puzzles in theoretical astrophysics. In this Letter we present a global kinetic plasma simulation which shows from first-principles how and where radio emission can be produced in pulsar…

High Energy Astrophysical Phenomena · Physics 2023-12-12 Ashley Bransgrove , Andrei M. Beloborodov , Yuri Levin

We show that dispersive gravitational waves, as a background spacetime, can reflect electromagnetic waves in a plasma. This reflection upshifts the frequency of the reflected wave, being larger for low-frequency incident waves. This effect…

High Energy Astrophysical Phenomena · Physics 2024-06-28 Felipe A. Asenjo , Swadesh M. Mahajan

It is shown that induced Raman scattering of electromagnetic waves in the strongly magnetized electron-positron plasma of pulsar magnetosphere may be important for wave propagation and as an effective saturation mechanism for…

Astrophysics · Physics 2009-10-30 Maxim Lyutikov

Electromagnetic radiation of a relativistic gas or plasma jet in the field of a plane gravitational wave is investigated. The gravitational wave is considered as a weak (linearized) field on flat Minkowski spacetime. It is assumed that the…

General Relativity and Quantum Cosmology · Physics 2024-12-13 Vladimir Epp , Konstantin Osetrin , Elena Osetrina

It is not fully understood how electromagnetic waves propagate through plasma density fluctuations when the size of the fluctuations is comparable with the wavelength of the incident radiation. In this paper, the perturbing effect of a…

Plasma Physics · Physics 2016-09-21 Alf Köhn , Eberhard Holzhauer , Jarrod Leddy , Matthew B Thomas , Roddy G L Vann

In collision-poor plasmas from space, three distinct ion-ion instabilities can be driven by the proton beams streaming along the background magnetic field: left-hand resonant, non-resonant, and right-hand resonant instabilities. These…

Solar and Stellar Astrophysics · Physics 2020-08-19 S. M. Shaaban , M. Lazar , R. A. López , S. Poedts

Electron interference in mesoscopic devices irradiated by external non-classical microwaves, is considered. In the case of one-mode microwaves, it is shown that both the average intensity and the spectral density of the interfering…

Condensed Matter · Physics 2009-11-10 C. C. Chong , D. I. Tsomokos , A. Vourdas

Classically, wave interference is a phenomenon that can be explained by considering only the waves themselves, that is, without the need to consider the apparatus that monitors or observes them. Thus, in classical theories, interference can…

Quantum Physics · Physics 2025-08-12 Alexandre Cesar Ricardo , Ciro Micheletti Diniz , Celso Jorge Villas-Bôas

This paper is devoted to studying of dispersion of waves in the magnetized plasma with the spin and exploring of new methods of the generation wave in the plasma. We consider the dispersion of waves, existed in the plasma in consequence of…

Plasma Physics · Physics 2012-12-04 P. A. Andreev , L. S. Kuz'menkov

The problem of radio wave reflection from an optically thick plane monotonous layer of magnetized plasma is considered at present work. The plasma electron density irregularities are described by spatial spectrum of an arbitrary form. The…

Plasma Physics · Physics 2009-10-31 N. A. Zabotin , A. G. Bronin , G. A. Zhbankov

Plasma sheath is the non-neutral space charge region that isolates bulk plasma from boundary. Radio-frequency (RF) sheathes are formed when applying RF voltage to electrodes. Generally, applied bias is mainly consumed by RF sheath which…

Plasma Physics · Physics 2020-03-11 Guang-Yu Sun , An-Bang Sun , Guan-Jun Zhang

Very large DC and AC electric fields cannot be sustained between conducting electrodes because of volume gas breakdown and/or surface field emission. However, very large potential fields are now routinely generated in plasma structures such…

Plasma Physics · Physics 2023-07-26 Jean-Marcel Rax , Renaud Gueroult , Nathaniel J. Fisch

A supersonic flow of magnetized plasma is produced by the application of a 1 MA-peak, 500 ns current pulse to a cylindrical arrangement of parallel wires, known as an inverse wire array. The plasma flow is produced by the JxB acceleration…

When magnetic monopoles are introduced in plasma equations, the propagation of electromagnetic waves is modified. In this work is shown that this modification leads to the emergence of a ponderomotive force which induces a magnetization of…

Plasma Physics · Physics 2010-10-19 Felipe A. Asenjo , Pablo S. Moya

The fluid theory of plasmas is extended to include the properties of electron spin. The linear theory of waves in a magnetized plasma is presented, and it is shown that the spin effects causes a change of the magnetic permeability.…

Plasma Physics · Physics 2009-11-13 G. Brodin , M. Marklund

We examine the possibility that fast radio bursts (FRBs) are emitted inside the magnetosphere of a magnetar. On its way out, the radio wave must interact with a low-density $e^\pm$ plasma in the outer magnetosphere at radii…

High Energy Astrophysical Phenomena · Physics 2021-11-24 Andrei M. Beloborodov

The generation of astrophysically relevant jets, from magnetically collimated, laser-produced plasmas, is investigated through three-dimensional, magneto-hydrodynamic simulations. We show that for laser intensities I ~ 10^12 - 10^14 W/cm^2,…

Plasma Physics · Physics 2015-06-12 A. Ciardi , T. Vinci , J. Fuchs , B. Albertazzi , C. Riconda , H. Pépin , O. Portugall

Electromagnetic waves undergo modifications as they propagate through plasma. We present EMPI (ElectroMagnetic-wave Plasma Interaction), a three-dimensional numerical framework designed to simulate the interaction between radio signals and…

High Energy Astrophysical Phenomena · Physics 2025-06-04 Nan Xu , He Gao , Yuan-Pei Yang , Bing Zhang , Wei-Yang Wang , Tian-Cong Wang , Ran Gao

Intergalactic weak magnetic fields can have non-negligible effects on the electromagnetic cascades induced by blazar gamma-ray emission. Secondary electrons and positrons are produced by primary gamma rays of energies ~TeV and can be…

High Energy Astrophysical Phenomena · Physics 2025-09-25 Suman Dey , Günter Sigl

A high energy density plasma embedded in a neutral gas is able to launch an outward-propagating nonlinear electrostatic ionization wave that traps energetic electrons. The trapping maintains a strong sheath electric field, enabling rapid…

Plasma Physics · Physics 2021-02-24 Haotian Mao , Kathleen Weichman , Zheng Gong , Todd Ditmire , Hernan Quevedo , Alexey Arefiev