Relativistic Chiral Kinetic Theory from Quantum Field Theories
Relativistic Chiral Kinetic Theory from Quantum Field Theories
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DOI：
10.1103/physrevd.95.091901
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发表时间：
2016-12
影响因子：
5
通讯作者：
Y. Hidaka;Shi Pu;Di-Lun Yang
中科院分区：
文献类型：
--
作者：
Y. Hidaka;Shi Pu;Di-Lun Yang
从量子场论出发，导出了在弱电场和弱磁场存在下外尔费米子碰撞的手征动力学理论。结果表明，微扰解中的侧跳项对推导过程起着重要的作用。此外，这些术语表明分布函数的洛伦兹对称性破缺。维格纳函数的洛仑兹协方差，从而导致修改的洛仑兹变换与侧跳现象进一步影响的背景场和碰撞。
The chiral kinetic theory of Weyl fermions with collisions in the presence of weak electric and magnetic fields is derived from quantum field theories. It is found that the side-jump terms in the perturbative solution of Wigner functions play a significant role for the derivation. Moreover, such terms manifest the breaking of Lorentz symmetry for distribution functions. The Lorentz covariance of Wigner functions thus leads to modified Lorentz transformation associated with side-jump phenomena further influenced by background fields and collisions.