Closed inflationary universe with tachyonic field
Astrophysics
2008-11-26 v2
Abstract
In this article we study closed inflationary universe models by using a tachyonic field theory. We determine and characterize the existence of an universe with , and which describes a period of inflation. We find that considered models are less restrictive compared to the standard ones with a scalar field. We use recent astronomical observations to constraint the parameters appearing in the model. Obtained results are compared to those found in the standard scalar field inflationary universes.
Cite
@article{arxiv.astro-ph/0703628,
title = {Closed inflationary universe with tachyonic field},
author = {Leonardo Balart and Sergio del Campo and Ramon Herrera and Pedro Labrana},
journal= {arXiv preprint arXiv:astro-ph/0703628},
year = {2008}
}
Comments
8 pages, 2 figures. Minor changes, typos corrected. Accepted for publication in Eur. Phys. J. C