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In a spherically symmetric plasma constrained by its own gravity, the ionization degree lags behind changes in temperature and density. The ambipolar electric field accelerates ions radially and cools electrons. Ions lose energy and angular…

星系天体物理 · 物理学 2024-08-13 Haibin Chen , Rong Wu

Observations of the upper chromosphere shows an enormous amount of intricate fine structure. Much of this comes in the form of linear features which are most often assumed to be well aligned with the direction of the magnetic field in the…

太阳与恒星天体物理 · 物理学 2017-10-23 Juan Martínez-Sykora , Bart De Pontieu , Mats Carlsson , Viggo Hansteen

Head-on collision of laser-induced plasma wakefields with differing profiles of electrostatic potential has been recently found to be an efficient mechanism for generating high-power electromagnetic emission at the second harmonic of the…

等离子体物理 · 物理学 2021-02-24 E. Volchok , V. Annenkov , I. Timofeev

We present results from the first 3D kinetic numerical simulation of magnetorotational turbulence and dynamo, using the local shearing-box model of a collisionless accretion disc. The kinetic magnetorotational instability grows from a…

高能天体物理现象 · 物理学 2016-12-07 Matthew W. Kunz , James M. Stone , Eliot Quataert

A high-density magnetized plasma has been studied for understanding of plasma dynamics in partially ionized plasmas. Ion flow field has been obtained experimentally, and is shown to be associated with a vortex formation. The most remarkable…

Microscopic instability and macroscopic flow pattern resulting from colliding plasmas are studied analytically in support of laboratory experiments. The plasma flows are assumed to stream radially from two separate centers. In a…

等离子体物理 · 物理学 2018-11-13 Mikhail Malkov , Vladimir Sotnikov

The spatio-temporal evolution of nonlinear oscillations in multi-species plasma is revisited to provide more insight into the physics of phase mixing by constructing two sets of nonlinear solutions up to the second order. The first solution…

等离子体物理 · 物理学 2017-08-04 Prabal Singh Verma

We theoretically propose the emergence of nonlinear nonreciprocal conductivity in centrosymmetric paramagnetic systems when a spatially gradient magnetic field is externally applied. The key essence lies in the appearance of magnetic…

强关联电子 · 物理学 2024-12-25 Taisei Yamanaka , Yoshihiko Ihara , Satoru Hayami

The identification of platforms with independently tunable nonlinearity and non-Hermiticity promises a quantitative route to far-from-equilibrium universality across many-body systems. Here we show that a conventional ferromagnetic…

介观与纳米尺度物理 · 物理学 2026-03-16 Vincent Flynn , Benedetta Flebus

The debate surrounding fast magnetic energy dissipation by magnetic reconnection has remained a fundamental topic in the plasma universe, not only in the Earth's magnetosphere but in astrophysical objects such as pulsar magnetospheres and…

高能天体物理现象 · 物理学 2021-06-22 Masahiro Hoshino

A new simple method to measure the spatial distribution of the electric field in the plasma sheath is proposed. The method is based on the experimental investigation of vertical oscillations of a single particle in the sheath of a…

混沌动力学 · 物理学 2009-11-07 A. V. Ivlev , R. Sütterlin , V. Steinberg , M. Zuzic , G. Morfill

The multi-fluid modelling of high-frequency waves in partially ionized plasmas has shown that the behavior of magnetohydrodynamics waves in the linear regime is heavily influenced by the collisional interaction between the different species…

太阳与恒星天体物理 · 物理学 2018-04-04 David Martínez-Gómez , Roberto Soler , Jaume Terradas

As proved by previous study, the similarity of electromagnetic processes in plasmas will be violated by Coulomb collisions between electron and ions. Therefore, there is no similarity in highly ionized collisional plasma. But the situation…

等离子体物理 · 物理学 2022-01-26 Jiansheng Yao , Yingkui Zhao , Hantian Zhang , Difa Ye , Biyao Ouyang

A fluid description for collisionless magnetized plasmas that takes into account the effect of cyclotron resonance has been developed. Following the same approach as the Landau fluid closure, the heat flux components associated with…

等离子体物理 · 物理学 2021-04-13 Taiki Jikei , Takanobu Amano

In the frame of an exactly solvable model we calculate electric and magnetic fields created by uniformly moving lattice of Josephson vortices driven by the transport current in the magnetic field parallel to conducting layers. The…

超导电性 · 物理学 2007-05-23 S. N. Artemenko , S. V. Remizov

The interaction of strong electromagnetic fields with plasma generates radiation accompanied by a recoil force, which can significantly alter the plasma dynamics. In this work, we investigate the development of anisotropic momentum…

等离子体物理 · 物理学 2025-09-25 Haidar Al-Naseri

We study the linear stability of weakly magnetized differentially rotating plasmas in both collisionless kinetic theory and Braginskii's theory of collisional, magnetized plasmas. We focus on the very weakly magnetized limit that is…

星系天体物理 · 物理学 2015-06-23 Eliot Quataert , Tobias Heinemann , Anatoly Spitkovsky

Using a two-fluid approach, we consider the properties of relativistically nonlinear (arbitrary $a_0$), circularly polarized \EM\ waves propagating along magnetic field in electron-ion and pair plasmas. Dispersion relations depend on how…

高能天体物理现象 · 物理学 2026-04-15 Maxim Lyutikov

We investigate the spin-dependent dynamical response of a quantum ring with a spin-orbit interaction upon the application of linearly polarized, picosecond, asymmetric electromagnetic pulses. The oscillations of the generated dipole moment…

介观与纳米尺度物理 · 物理学 2009-11-13 Zhen-Gang Zhu , Jamal Berakdar

Linear and nonlinear ion-acoustic waves are studied in a fluid model for non-relativistic, unmagnetized quantum plasma with electrons with an arbitrary degeneracy degree. The equation of state for electrons follows from a local Fermi-Dirac…

等离子体物理 · 物理学 2016-03-09 Fernando Haas , Shahzad Mahmood