Dirac-field model of inflation in Einstein-Cartan theory
Cosmology and Nongalactic Astrophysics
2009-02-10 v1
Abstract
We present a cosmological model in which a single Dirac field with a flat potential can give rise to inflation within the framework of the Einstein-Cartan theory. It is shown that our Dirac-field model leads to a nearly scale-invariant spectrum of density fluctuations owing to the spin-interaction which naturally arises from the field equations of the Einstein-Cartan theory.
Keywords
Cite
@article{arxiv.0902.1392,
title = {Dirac-field model of inflation in Einstein-Cartan theory},
author = {Tomoki Watanabe},
journal= {arXiv preprint arXiv:0902.1392},
year = {2009}
}
Comments
9 pages, 1 figure