Propagators of the Dirac fermions in de Sitter expanding universe
General Relativity and Quantum Cosmology
2018-09-20 v7
Abstract
The propagators of the Dirac fermions are studied in the configuration representation on the expanding portion of the -dimensional de Sitter spacetime considering a fixed vacuum of Bunch-Davies type. In this representation the method of Koksma and Prokopec [J. F. Koksma and T. Prokopec, Class. Quant. Grav. {\bf 26}, 125003 (2009)] is applied recovering thus the form of the propagators in the massive case but obtaining a new result for the left-handed massless fermions (neutrinos).
Cite
@article{arxiv.1804.02842,
title = {Propagators of the Dirac fermions in de Sitter expanding universe},
author = {Ion I. Cotaescu},
journal= {arXiv preprint arXiv:1804.02842},
year = {2018}
}
Comments
14 pages, no figures