Dirac sea and chiral anomaly in the quantum kinetic theory
High Energy Physics - Phenomenology
2020-05-27 v3 High Energy Physics - Theory
Nuclear Theory
Abstract
We revisit the chiral anomaly in the quantum kinetic theory in the Wigner function formalism under the background field approximation. Our results show that the chiral anomaly is actually from the Dirac sea or the vacuum contribution in the un-normal-ordered Wigner function. We also demonstrate that this contribution modifies the chiral kinetic equation for antiparticles.
Keywords
Cite
@article{arxiv.1910.11060,
title = {Dirac sea and chiral anomaly in the quantum kinetic theory},
author = {Jian-Hua Gao and Zuo-Tang Liang and Qun Wang},
journal= {arXiv preprint arXiv:1910.11060},
year = {2020}
}
Comments
7 pages, Version submitted to PRD