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相关论文: Spin magnetohydrodynamics

200 篇论文

In this work, we present a novel framework of relativistic non-resistive dissipative magnetohydrodynamics for spin-polarized particles. Utilizing a classical relativistic kinetic equation for the distribution function in an extended…

高能物理 - 唯象学 · 物理学 2024-01-30 Samapan Bhadury , Wojciech Florkowski , Amaresh Jaiswal , Avdhesh Kumar , Radoslaw Ryblewski

We consider the influence of the electron spin on the nonlinear propagation of whistler waves. For this purpose a recently developed electron two-fluid model, where the spin up- and down populations are treated as different fluids, is…

等离子体物理 · 物理学 2015-05-14 Martin Stefan , Gert Brodin , Mattias Marklund

Quantum hydrodynamic (QHD) model of charged spin-1/2 particles contains physical quantities defined for all particles of a species including particles with spin-up and with spin-down. Different population of states with different spin…

等离子体物理 · 物理学 2015-04-01 Pavel A. Andreev

In this paper we explicate a method of magneto quantum hydrodynamics (MQHD) for the study of the quantum evolution of a system of spinning fermions in an external electromagnetic field. The fundamental equations of microscopic quantum…

等离子体物理 · 物理学 2014-02-20 Mariya Ivanovna Trukhanova

Some features of the calculation of fluid dynamo systems in magnetohydrodynamics are studied. In the coupled set of the ordinary linear differential equations for the spherically symmetric $\alpha^2-$dynamos, the problem represented by the…

数学物理 · 物理学 2007-06-13 Miloslav Znojil , Uwe Guenther

We consider quantum plasmas of electrons and motionless ions. We describe separate evolution of spin-up and spin-down electrons. We present corresponding set of quantum hydrodynamic equations. We assume that plasmas are placed in an uniform…

等离子体物理 · 物理学 2015-08-05 Pavel A. Andreev , L. S. Kuz'menkov

A possibility of the hydrodynamic description of ultracold fermions via the microscopic derivation of the model is described. Differently truncated hydrodynamic models are derived and compared. All models are based on the microscopic…

量子气体 · 物理学 2020-01-10 Pavel A. Andreev

Recent theoretical developments in hydrodynamics of particles with spin 1/2 are briefly reviewed.

核理论 · 物理学 2019-07-15 Wojciech Florkowski

The spin effects on electromagnetic waves in a strongly magnetized plasma with rare collisions is considered with the help of relativistic kinetic equations, which takes into account the electron spin dynamics in the selfconsistent electric…

高能物理 - 唯象学 · 物理学 2007-05-23 V. N. Oraevsky , V. B. Semikoz , A. S. Volokitin

We review basic ingredients of the recently introduced perfect-fluid hydrodynamic equations for particles with spin one-half. For a quasi-realistic setup, first numerical solutions for various hydrodynamic variables including the spin…

We extend the classical phase-space distribution function to include the spin and electromagnetic fields coupling and derive the modified constitutive relations for charge current, energy-momentum tensor, and spin tensor. Because of the…

高能物理 - 唯象学 · 物理学 2023-04-20 Rajeev Singh , Masoud Shokri , S. M. A. Tabatabaee Mehr

This article deals with rotating magnetohydrodynamic flows of a thin stratified layer of astrophysical plasma in a gravitational field with a free-surface in a vertical external magnetic field. Magnetohydrodynamic equations are obtained in…

等离子体物理 · 物理学 2019-07-02 Maria Fedotova , Dmitry Klimachkov , Arakel Petrosyan

We consider relativistic charged particle dynamics and relativistic magnetohydrodynamics using symplectic structures and actions given in terms of co-adjoint orbits of the Poincar\'e group. The particle case is meant to clarify some points…

高能物理 - 理论 · 物理学 2014-11-19 Dimitra Karabali , V. P. Nair

A non relativistic electron with a spin is described by Pauli's equation. It has been shown that this system can be interpreted as a vortical fluid which has both similarities and differences with classical ideal flows. Moreover, it was…

其他凝聚态物理 · 物理学 2022-08-02 Asher Yahalom

We describe main ideas of method of many-particle quantum hydrodynamics allows to derive equations for description of quantum plasma evolution. We also present definitions of collective quantum variables suitable for quantum plasmas. We…

等离子体物理 · 物理学 2014-07-02 P. A. Andreev , L. S. Kuz'menkov

The spectrum of collective excitations of degenerate partially polarized spin-1/2 fermions is considered. The spin-up fermions and the spin-down fermions are considered as different fluids. Corresponding two-fluid hydrodynamics consistent…

量子气体 · 物理学 2018-01-23 Pavel A. Andreev

We briefly review the foundations of a new relativistic fluid dynamics framework for polarized systems of particles with spin one half. Using this approach we numerically study the dynamics of the spin polarization of a rotating medium…

Using classical description of spin degrees of freedom, we extend recent formulation of the perfect-fluid hydrodynamics for spin-polarized fluids to the case including dissipation. Our work is based on the analysis of classical kinetic…

The modified Navier-Stokes equation describing the velocity field in the superfluid quantum space is loaded by the external Lorentz force introducing electromagnetic fields. In order to open the path for getting the \Schrodinger-Pauli…

量子物理 · 物理学 2017-08-14 Valeriy I. Sbitnev

The field of spin hydrodynamics aims to describe magnetization dynamics from a fluid perspective. For ferromagnetic materials, there is an exact mapping between the Landau-Lifshitz equation and a set of dispersive hydrodynamic equations.…

介观与纳米尺度物理 · 物理学 2019-09-13 Ezio Iacocca , Mark A. Hoefer