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相关论文: Relativistic magnetic reconnection at X-type neutr…

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In this article, we consider the 3D-rotating magnetohydrodynamic (MHD) system when the initial velocity and magnetic field both feature some 2D-part (i.-e. depending only on the horizontal space variables). We prove for weak and strong…

偏微分方程分析 · 数学 2025-07-10 Frédéric Charve , Van-Sang Ngo

The damping of the oscillations of a small permanent magnet (spherical shape, radius 0.1 mm) levitating between two parallel YBCO surfaces is measured as a function of oscillation amplitude and temperature. The losses in the samples…

超导电性 · 物理学 2007-05-23 R. Grosser , P. Hoecherl , A. Martin , M. Niemetz , W. Schoepe

We study the supercurrent in quasi-one-dimensional Josephson junctions with a weak link involving magnetism, either via magnetic impurities or via ferromagnetism. In the case of weak links longer than {\color{black}the magnetic…

介观与纳米尺度物理 · 物理学 2018-12-24 P. A. Ioselevich , P. M. Ostrovsky , Ya. V. Fominov

We investigate the dynamics of entanglement, uncertainty and mixedness by solving time dependent Schr\"{o}dinger equation for two-dimensional harmonic oscillator with time dependent frequency and coupling parameter subject to a static…

量子物理 · 物理学 2022-08-12 Radouan Hab-arrih , Ahmed Jellal , Abdeldjalil Merdaci

Context: Coronal magnetic null points have been implicated as possible locations for localised heating events in 2D models. We investigate this possibility about fully 3D null points. Aims: We investigate the nature of the fast…

太阳与恒星天体物理 · 物理学 2012-08-30 J. O. Thurgood , J. A. McLaughlin

We present a new numerical method of special relativistic resistive magnetohydrodynamics with scalar resistivity that can treat a range of phenomena, from nonrelativistic to relativistic (shock, contact discontinuity, and Alfv\'en wave).…

高能天体物理现象 · 物理学 2015-05-28 Makoto Takamoto , Tsuyoshi Inoue

We derive an explicit analytical expression for the magnetic dipole moment of the rho meson, mu_rho, in a relativistic constituent-quark model. We adopt our relativistic approach to composite systems, modified instant-form (mIF)…

高能物理 - 唯象学 · 物理学 2018-03-14 A. F. Krutov , R. G. Polezhaev , V. E. Troitsky

This paper is concerned with the asymptotic behaviors of global strong solutions to the incompressible non-resistive viscous magnetohydrodynamic (MHD) equations with large initial perturbations in two-dimensional periodic domains in…

偏微分方程分析 · 数学 2021-02-16 Fei Jiang , Song Jiang

Context : In the linear, {\beta}=0 MHD regime, the transient properties of MHD waves in the vicinity of 2D null points are well known. The waves are decoupled and accumulate at predictable parts of the magnetic topology: fast waves…

太阳与恒星天体物理 · 物理学 2015-06-16 J. O. Thurgood , J. A. McLaughlin

This paper analytically investigates a series of two-dimensional MHD reconnection solutions over a wide variation of magnetic Reynolds number ($R_{em}^*$). A new series of solutions explains a continuous transition from Petschek-like fast…

天体物理学 · 物理学 2011-02-11 Shin-ya Nitta

Single fluid magnetohydrodynamic (MHD) equations have been studied through direct numerical simulations (DNS) using pseudo-spectral methods in two as well as three spatial dimensions. At Alfv\'en resonance, a reversible periodic exchange of…

等离子体物理 · 物理学 2019-06-24 Rupak Mukherjee , Rajaraman Ganesh , Abhijit Sen

We perform a theoretical and numerical study of anti-parallel 2D magnetic reconnection with asymmetries in the density and reconnecting magnetic field strength in addition to a bulk flow shear across the reconnection site in the plane of…

空间物理 · 物理学 2015-11-04 C. E. Doss , C. M. Komar , P. A. Cassak , F. D. Wilder , S. Eriksson , J. F. Drake

We simulate the fragmentation processes in the \CaCa collisions at the bombarding energy 1.05 GeV/u using the Lorentz covariant RQMD and the non-covariant QMD approaches, incorporated with the statistical decay model. By comparing the…

核理论 · 物理学 2019-08-17 Tomoyuki Maruyama , Toshiki Maruyama , Koji Niita

We investigate the large scale evolution of a relativistic magnetic reconnection in an electron-positron pair plasma by a relativistic two-fluid magnetohydrodynamic (MHD) code. We introduce an inter-species friction force as an effective…

高能天体物理现象 · 物理学 2014-11-18 Seiji Zenitani , Michael Hesse , Alex Klimas

Magnetic energy around compact objects often dominates over plasma rest mass, and its dissipation can power the object luminosity. We describe a dissipation mechanism which works faster than magnetic reconnection. The mechanism involves two…

高能天体物理现象 · 物理学 2021-07-28 Xinyu Li , Andrei M. Beloborodov , Lorenzo Sironi

When a gravitating point mass moves subsonically through a magnetized and isothermal medium, the dynamical structure of the flow is studied far from the mass using a perturbation analysis. Analytical solutions for the first-order density…

星系天体物理 · 物理学 2015-06-05 Mohsen Shadmehri , Fazeleh Khajenabi

A main result of this paper establishes the global stability of the 3D MHD equations with mixed partial dissipation near a background magnetic field in the domain $\Omega=\mathbb{T}^2\times\mathbb{R}$ with $\mathbb{T}^2=[0, 1]^2$. More…

偏微分方程分析 · 数学 2024-02-05 Xuemin Deng , Yuelong Xiao , Aibin Zang

The coupled motion between the hydrodynamic flow and magnetic field introduces significant complexity into the structure of the magnetohydrodynamic (MHD) equations. A key factor contributing to this complexity is the presence of Alfv\'en…

偏微分方程分析 · 数学 2025-10-15 Shangkun Weng , Wengang Yang

It has been shown recently that magnetic twist and axisymmetric MHD modes are ubiquitous in the solar atmosphere and therefore, the study of resonant absorption for these modes have become a pressing issue as it can have important…

太阳与恒星天体物理 · 物理学 2017-06-30 Ioannis Giagkiozis , Marcel Goossens , Gary Verth , Viktor Fedun , Tom Van Doorsselaere

The current understanding of MHD turbulence envisions turbulent eddies which are anisotropic in all three directions. In the plane perpendicular to the local mean magnetic field, this implies that such eddies become current-sheet-like…

等离子体物理 · 物理学 2017-06-21 N. F. Loureiro , S. Boldyrev