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We present for the first time the nonlinear dynamics of quantum electrodynamic (QED) photon splitting in a strongly magnetized electron-positron (pair) plasma. By using a QED corrected Maxwell equation, we derive a set of equations that…

天体物理学 · 物理学 2008-11-26 G. Brodin , M. Marklund , B. Eliasson , P. K. Shukla

The propagation of emissions in the relativistic streaming pair plasmas of pulsars and magnetars is studied within the framework of Gordon effective metric theory, and the effect of vacuum polarization on the radiation spectra is examined…

等离子体物理 · 物理学 2013-03-04 Yuee Luo , Zhigang Bu , Wenbo Chen , Hehe Li , Peiyong Ji

Nonlinear axisymmetric cylindrical plasma oscillations in magnetized collisionless plasmas are a model for the electron fluid collapse on the axis behind an ultrashort relativisically intense laser pulse exciting a plasma wake wave. We…

The high- and low-frequency descriptions of the pre-decoupling plasma are deduced from the Vlasov-Landau treatment generalized to curved space-times and in the presence of the relativistic fluctuations of the geometry. It is demonstrated…

天体物理学 · 物理学 2008-11-26 Massimo Giovannini , Kerstin E. Kunze

Resonant scattering of fast particles off low frequency plasma waves is a major process determining transport characteristics of energetic particles in the heliosphere and contributing to their acceleration. Usually, only Alfv\'en waves are…

高能天体物理现象 · 物理学 2017-02-20 Cedric Schreiner , Patrick Kilian , Felix Spanier

Gravitational waves (GWs) propagating through a uniformly magnetized plasma interact directly with the magnetic field and excite magnetohydrodynamic (MHD) waves with both electromagnetic and matter components. We study this process for…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Joachim Moortgat , Jan Kuijpers

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

The harmonic generation has always been of fundamental interest in studying the nonlinear nature of any physical system. In the present study, Particle - In - Cell (PIC) simulations have been carried out to explore the harmonic generation…

等离子体物理 · 物理学 2023-07-12 Trishul Dhalia , Rohit Juneja , Laxman Prasad Goswami , Srimanta Maity , Amita Das

The propagation of an electrostatic wave in a three-component e-p-I astrophysical quantum plasma in a rotating frame has been studied, taking into account the particle spin, Fermi pressure, and quantum Bohm potential. Spin polarization…

等离子体物理 · 物理学 2025-04-09 Atherv Saxena , Punit Kumar

It is crucial to know the polarization properties of coherent radio waves that escape from pulsar polar caps to calculate the radiative transfer through the magnetosphere and to predict observable radio properties. We describe pair cascades…

高能天体物理现象 · 物理学 2026-03-25 Jan Benáček , Axel Jessner , Martin Pohl , Tatiana Rievajová , Lucy S. Oswald

Generation of highly-polarized high-energy brilliant $\gamma$-rays via laser-plasma interaction has been investigated in the quantum radiation-reaction regime. We employ a quantum-electrodynamics particle-in-cell code to describe…

等离子体物理 · 物理学 2020-03-17 Kun Xue , Zhen-Ke Dou , Feng Wan , Tong-Pu Yu , Wei-Min Wang , Jie-Ru Ren , Qian Zhao , Yong-Tao Zhao , Zhong-Feng Xu , Jian-Xing Li

The electromagnetic modes possibly unstable in strongly magnetized plasmas are identified. The regime where this instability might stand out compared to the incoherent electron-cyclotron radiation is explored. These modes are relevant to…

等离子体物理 · 物理学 2012-11-06 S. Son , Sung Joon Moon

The dispersive effects of vacuum polarization on the propagation of a strong circularly polarized electromagnetic wave through a cold collisional plasma are studied analytically. It is found that, due to the singular dielectric features of…

高能物理 - 唯象学 · 物理学 2018-08-01 A. Di Piazza , K. Z. Hatsagortsyan , C. H. Keitel

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

We consider cosmological applications of a new self-consistent system of equations, accounting for a nonminimal coupling of the gravitational, electromagnetic and pseudoscalar (axion) fields in a relativistic plasma. We focus on dispersion…

广义相对论与量子宇宙学 · 物理学 2013-12-17 Alexander B. Balakin , Ruslan K. Muharlyamov , Alexei E. Zayats

A variety of intriguing polarization patterns are created when polarization observations of the single pulses from radio pulsars are displayed in a two-dimensional projection of the Poincare sphere. In many pulsars, the projections produce…

天体物理学 · 物理学 2011-02-11 Mark M. McKinnon

The high-frequency part of spectrum of electromagnetic waves propagating parallel to the external magnetic field is considered for the macroscopically motionless plasmas with the relativistic temperatures $T\sim m_{e}c^{2}$, where $m_{e}$…

等离子体物理 · 物理学 2023-08-16 Pavel A. Andreev

These notes provide a pedagogical introduction to the theoretical study of vacuum polarization effects in strong electromagnetic fields as provided by state-of-the-art high-intensity lasers. Quantum vacuum fluctuations give rise to…

高能物理 - 唯象学 · 物理学 2020-01-22 Felix Karbstein

We show that circularly polarized lasers create plasmas with long-lasting ring-shaped weakly relativistic momentum distributions which, in the presence of an ambient magnetic field, are prone to the electron cyclotron maser instability.…

等离子体物理 · 物理学 2024-12-10 Thales Silva , Pablo J. Bilbao , Luis O. Silva

Strongly magnetizing a plasma adds a range of waves that do not exist in unmagnetized plasmas and enlarges the laser-plasma interaction (LPI) landscape. In this paper, we use particle-in-cell (PIC) simulations to investigate strongly…

等离子体物理 · 物理学 2022-11-23 Lili Manzo , Matthew R. Edwards , Yuan Shi
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