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The propagation of a relativistic electron-positron beam in a magnetized electron-ion plasma is studied, focusing on the polarization of the radiation generated in this case. Special emphasis is laid on investigating the polarization of the…

等离子体物理 · 物理学 2020-06-11 Ujjwal Sinha , Naveen Kumar

We consider the polarization behaviour of radio waves propagating through an ultrarelativistic highly magnetized electron-positron plasma in a pulsar magnetosphere. The rotation of magnetosphere gives rise to the wave mode coupling in the…

天体物理学 · 物理学 2009-10-31 Y. E. Lyubarskii , S. A. Petrova

Inhomogeneities can influence the polarisation emerging from a synchrotron source. However, it is shown that the frequency distribution of circular polarisation is only marginally affected, although its magnitude may change substantially.…

高能天体物理现象 · 物理学 2020-05-13 C. -I. Bjornsson

Generation of ultrarelativistic polarized positrons during interaction of an ultrarelativistic electron beam with a counterpropagating two-color petawatt laser pulse is investigated theoretically. Our Monte Carlo simulation based on a…

等离子体物理 · 物理学 2019-10-30 Yue-Yue Chen , Pei-Lun He , Rashid Shaisultanov , Karen Z. Hatsagortsyan , Christoph H. Keitel

We show that the Weibel or currente filamentation instability can lead to the emission of circularly polarized radiation. Using particle-in-cell (PIC) simulations and a radiation post-processing numerical algorithm, we demonstrate that the…

等离子体物理 · 物理学 2021-02-24 U. Sinha , J. Martins , J. Vieira , K. M. Schoeffler , R. A. Fonseca , L. O. Silva

It has been argued in previous papers that an ion-proton plasma is formed at the polar caps of neutron stars with positive polar-cap corotational charge density. The present paper does not offer a theory of the development of turbulence…

高能天体物理现象 · 物理学 2015-12-09 P B Jones

Plasma current filamentation of an ultrarelativistic electron beam impinging on an overdense plasma is investigated, with emphasis on radiation-induced electron polarization. Particle-in-cell simulations provide the classification and…

等离子体物理 · 物理学 2023-01-18 Zheng Gong , Karen Z. Hatsagortsyan , Christoph H. Keitel

Circularly polarized colliding laser pulses can create abundant electron-positron pair plasma [A. R. Bell and J. G. Kirk, Phys. Rev. Lett. 101, 200403 (2008)], which scattering the incoming electromagnetic waves can prevent them from…

To probe the nonlinear effects of photon-photon interaction in the quantum electrodynamics, we study the generation of circular polarized photons by the collision of two linearly polarized laser beams. In the framework of the…

光学 · 物理学 2015-09-09 Rohoollah Mohammadi , Iman Motie , She-Sheng Xue

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…

等离子体物理 · 物理学 2020-12-30 Takayoshi Sano , Yusuke Tatsumi , Masayasu Hata , Yasuhiko Sentoku

We present a theoretical study on the radiative self-polarization of a high-energy electron beam propagating perpendicular to a strong magnetic field. Recently, a similar setup has been proposed as a source of polarized electron and photon…

高能物理 - 唯象学 · 物理学 2026-04-30 O. Novak , M. Diachenko , R. Kholodov

We investigate the emission of circularly polarized photons from a magnetized quark-gluon plasma with nonzero quark-number and chiral charge chemical potentials. These chemical potentials qualitatively influence the differential emission…

高能物理 - 唯象学 · 物理学 2024-12-06 Xinyang Wang , Igor A. Shovkovy

Radiation emitted by unpolarized high-energy electrons penetrating crystals may be linearly polarized. This occurs when the particle velocity makes an angle, with respect to some major crystal axis, being sufficiently larger than the…

高能物理 - 唯象学 · 物理学 2008-11-26 V. M. Strakhovenko

We present the results of the calculation of the electron-positron pair creation probability by the circularly polarized electromagnetic wave during its propagation in underdense collisionless plasmas. The dependence of the probability on…

高能物理 - 唯象学 · 物理学 2008-11-26 S. S. Bulanov

We show that ionization of noble gas atoms by strong infrared circularly polarized laser field under standard exerimental conditions can yield electrons with up to 100% spin polarization in energy resolved measurements. Spin polarization…

原子物理 · 物理学 2013-07-18 Ingo Barth , Olga Smirnova

It is shown that the frequency distribution of the degree of circular polarisation for a homogeneous source is sensitive to the properties of the synchrotron emitting plasma. Most of the circular polarisation comes from the region around…

高能天体物理现象 · 物理学 2019-03-13 Claes-I. Bjornsson

The acceleration of polarized electrons, positrons, protons and ions in strong laser and plasma fields is a very attractive option to obtain polarized beams in the multi-MeV range. Recently, there has been substantial progress in the…

加速器物理 · 物理学 2020-11-04 Markus Büscher , Anna Hützen , Liangliang Ji , Andreas Lehrach

Since the opacity of a magnetized plasma depends on polarization of radiation, the radiation emergent from atmospheres of neutron stars with strong magnetic fields is expected to be strongly polarized. The degree of linear polarization,…

天体物理学 · 物理学 2009-10-31 G. G. Pavlov , V. E. Zavlin

Magnetars are likely to be the origin of all fast radio bursts. The recent detection of circularly polarized bursts suggests that they might be generated deep inside magnetar magnetospheres. However, the mechanism behind the circular…

高能天体物理现象 · 物理学 2026-03-04 Da-Chao Deng , Hui-Chun Wu

The interaction of intense linearly polarized femtosecond laser pulses with solids is known to generate azimuthal magnetic fields, while circularly polarized light has been shown to create axial fields. We demonstrate through experiments…

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