Pseudo-gauges and relativistic spin hydrodynamics for interacting Dirac and Proca fields
Nuclear Theory
2022-07-22 v2
Abstract
We present the explicit expressions of different pseudo-gauge transformations for Dirac and Proca fields considering a general interaction term. The particular case of the interaction of Dirac and Proca fields with a background electromagnetic field is also studied. Starting from the quantum kinetic theory with collisions derived from the Wigner-function formalism for massive spin-1/2 and spin-1 particles, we establish a connection between different pseudo-gauges and relativistic spin hydrodynamics. The physical implications of the various decompositions of orbital and spin angular momentum are discussed.
Cite
@article{arxiv.2204.01797,
title = {Pseudo-gauges and relativistic spin hydrodynamics for interacting Dirac and Proca fields},
author = {Nora Weickgenannt and David Wagner and Enrico Speranza},
journal= {arXiv preprint arXiv:2204.01797},
year = {2022}
}
Comments
21 pages, no figures