Quantum kinetic theory for dynamical spin polarization from QED-type interaction

被引：34

作者：

Fang, Shuo ^{[1
]}

Pu, Shi ^{[1
]}

Yang, Di-Lun ^{[2
]}

机构：

[1] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Anhui, Peoples R China

[2] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

来源：

PHYSICAL REVIEW D | 2022年 / 106卷 / 01期

基金：

中国国家自然科学基金;

关键词：

HYDRODYNAMICS; FLUID;

D O I：

10.1103/PhysRevD.106.016002

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We investigate the dynamical spin polarization of a massless electron probing an electron plasma in locally thermal equilibrium via the Moller scattering from the quantum kinetic theory. We derive an axial kinetic equation delineating the dynamical spin evolution in the presence of the collision term with quantum corrections up to O(h) and the leading-logarithmic order in coupling by using the hard-thermal-loop approximation, from which we extract the spin-polarization rate induced by the spacetime gradients of the medium. When the electron probe approaches local equilibrium, we further simplify the collision term into a relaxation-time expression. Our kinetic equation may be implemented in the future numerical simulations for dynamical spin polarization.

引用

页数：20

共 138 条

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