论文标题
相对论自旋磁流失动力学
Relativistic Spin Magnetohydrodynamics
论文作者
论文摘要
从磁场存在的大量自旋-1/2颗粒的动力学理论开始，相对论耗散性非耐磁性流动力学的方程是在小极化极限中获得的。我们在相对论玻尔兹曼方程中使用松弛时间近似来碰撞内核，并计算出可自旋偏极颗粒的相位空间分布函数的非平衡校正。我们证明我们的框架自然会导致众所周知的Einstein-de Hass和Barnett效应的出现。我们获得了多个传输系数，并首次显示自旋和磁场之间的耦合以流体动力方程式出现在梯度顺序中。
Starting from kinetic theory description of massive spin-1/2 particles in presence of magnetic field, equations for relativistic dissipative non-resistive magnetohydrodynamics are obtained in the small polarization limit. We use a relaxation time approximation for the collision kernel in the relativistic Boltzmann equation and calculate non-equilibrium corrections to the phase-space distribution function of spin-polarizable particles. We demonstrate that our framework naturally leads to emergence of the well known Einstein-de Hass and Barnett effects. We obtain multiple transport coefficients and show, for the first time, that the coupling between spin and magnetic field appear at gradient order in hydrodynamic equations.
