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The twisted magnetospheres of magnetars must sustain a persistent flow of electron-positron plasma. The flow dynamics is controlled by the radiation field around the hot neutron star. The problem of plasma motion in the self-consistent…

高能天体物理现象 · 物理学 2015-06-11 Andrei M. Beloborodov

Astrophysical plasmas are often subject to both rotation and large-scale background magnetic fields. Individually, each is known to two-dimensionalize the flow in the perpendicular plane. In realistic flows, both of these effects are…

流体动力学 · 物理学 2022-01-26 Santiago J. Benavides , Keaton J. Burns , Basile Gallet , James Y-K. Cho , Glenn R. Flierl

The polarization plane rotation angle of probe signal in plasma is calculated. The estimates of the residual gas average density and the average magnitude of the magnetic field in a cesium plasma based on the effects of Faraday and…

等离子体物理 · 物理学 2022-07-19 Koryun B. Oganesyan , Krzysztof Dzierdzega , Peter Kopcansky

Sweet-Parker current sheets in high Lundquist number plasmas are unstable to tearing, suggesting they will not form in physical systems. Understanding magnetic reconnection thus requires study of the stability of a current sheet as it…

等离子体物理 · 物理学 2018-03-02 Elizabeth A. Tolman , Nuno F. Loureiro , Dmitri A. Uzdensky

We investigate the reconstruction of pulsar magnetospheres close to the light cylinder surface to study the curvature drift instability (CDI) responsible for the twisting of magnetic field lines in the mentioned zone. The influence of…

天体物理学 · 物理学 2015-05-13 Z. Osmanov , D. Shapakidze , G. Machabeli

The linear and non-linear evolution of a relativistic current sheet of pair ($e^{\pm}$) plasmas is investigated by three-dimensional particle-in-cell simulations. In a Harris configuration, it is obtained that the magnetic energy is fast…

天体物理学 · 物理学 2008-11-02 S. Zenitani , M. Hoshino

The polarization plane stimulated rotation angle of probe signal in the intense laser field in plasma is calculated. The estimates of the residual gas local density in a cesium plasma based on the effects of Faraday, Cotton-Mouton and…

等离子体物理 · 物理学 2022-08-18 Krzysztof Dzierzega , Michal Hnatic , Koryun B. Oganesyan , Peter Kopcansky

We measured the static and dynamic (complex) shear viscosity of a single layer complex plasma by applying, respectively, a stationary and a periodically modulated shear stress induced by the light pressure of manipulating laser beams. Under…

等离子体物理 · 物理学 2012-08-07 Peter Hartmann , Máté Csaba Sándor , Anikó Kovács , Zoltán Donkó

We present a novel mechanism in which plasma electrons and ions optically acquire angular momentum during local pump depletion of an azimuthally polarized laser, despite the laser carrying none. Using theoretical considerations and…

等离子体物理 · 物理学 2026-03-04 Camilla Willim , Thales Silva , Luís Oliveira Silva , Jorge Vieira

Pure spin current is a powerful tool for manipulating spintronic devices, and its dynamical behavior is an important issue. By using mesoscopic transport theory for electron tunneling induced by spin accumulation, we investigate the…

介观与纳米尺度物理 · 物理学 2022-07-25 Shuichi Iwakiri , Yasuhiro Niimi , Kensuke Kobayashi

The problem of determining the effective conductivity tensor of a magnetoactive turbulent plasma is considered in the approximation of isolated particles. Additional gyrotropicterms are shown to appear in the conductivity tensor in the…

等离子体物理 · 物理学 2009-11-10 Otto G. Chkhetiani

Three-dimensional FLASH radiation-magnetohydrodynamics (radiation-MHD) modeling is carried out to study the hydrodynamics and magnetic fields in the shock-shear derived platform. Simulations indicate that fields of tens of Tesla can be…

From Vlasov kinetic equation for collisionless plasmas distribution function in square-law approximation on size of electromagnetic field is received. Formulas for calculation electric current at any temperature (any degree of degeneration…

等离子体物理 · 物理学 2015-09-30 A. V. Latyshev , A. A. Yushkanov

An investigation of the kinematics of a rotating relativistic plasma stream in the perpendicular rotator model of the pulsar magnetosphere is presented. It is assumed that the plasma (ejected from the pulsar) moves along the pulsar magnetic…

天体物理学 · 物理学 2009-10-30 O. V. Chedia , T. A. Kahniashvili , G. Z. Machabeli , I. S. Nanobashvili

The non-collisional interaction between conducting obstacles and magnetized plasma winds can be found in different scenarios, from the interaction occurring between regions inside galaxy clusters to the interaction between the solar wind…

地球与行星天体物理 · 物理学 2015-06-22 Norberto Romanelli , Daniel Gomez , Cesar Bertucci , Magda Delva

Radio frequency (RF) waves can provide heating, current and flow drive, as well as instability control for steady state operations of fusion experiments. A particle simulation model has been developed in this work to provide a…

等离子体物理 · 物理学 2017-10-06 A. Kuley , Z. X. Wang , Z. Lin , F. Wessel

We have developed a relativistic model for pulsar radio emission and polarization by taking into account of detailed geometry of emission region, rotation and modulation. The sparks activity on the polar cap leads to plasma columns in the…

高能天体物理现象 · 物理学 2015-06-03 D. Kumar , R. T. Gangadhara

The particle and momentum balance equations can be solved on concentric circular flux surfaces to determine the effective viscous drag present in a magnetized tokamak plasma in the low aspect ratio limit. An analysis is developed utilizing…

等离子体物理 · 物理学 2007-10-16 Robert W. Johnson

We analyze the motion of an overdamped classical particle in a multidimensional periodic potential, driven by a weak external noise. We demonstrate that in steady-state, the presence of temporal correlations in the noise and spatial…

凝聚态物理 · 物理学 2009-10-31 A. W. Ghosh , S. V. Khare

The traditional generalized Ohm's law in MHD do not explicitly present the relation of electric currents and electric fields in fully ionized plasma, and lead to some unexpected concepts, such as "the magnetic frozen-in plasma", magnetic…

太阳与恒星天体物理 · 物理学 2010-07-29 Zhiliang Yang