Rest frame vacuum of the Dirac field on spatially flat FLRW spacetimes
General Relativity and Quantum Cosmology
2019-09-04 v2
Abstract
In quantum theory of the free Dirac field on spatially flat FLRW spacetimes we introduce a new type of vacuum able to separate the positive and negative frequencies in the rest frames. This is refereed as the rest frame vacuum shoving that this differs from the adiabatic vacuum apart from the Minkowski spacetime where these two vacua coincide.
Keywords
Cite
@article{arxiv.1906.00404,
title = {Rest frame vacuum of the Dirac field on spatially flat FLRW spacetimes},
author = {Ion I. Cotaescu},
journal= {arXiv preprint arXiv:1906.00404},
year = {2019}
}
Comments
5 pages, no figures