2007/03/31 by Leonardo Balart, Sergio del Campo, S. del Campo +4
Mathematics · Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Cosmology #Cosmology and Gravitation Theories #Dark energy #Field (mathematics) #Galaxies: Formation, Evolution, Phenomena #Higgs boson #Higgs field #Inflation (cosmology) #Inflationary epoch #Mathematical physics #Mathematics #Metric expansion of space #Physics #Quantum mechanics #Scalar field #Tachyon #Tachyonic field #Theoretical physics #Universe #astro-ph
paper · pdf · doi:10.1140/epjc/s10052-007-0288-5
published as Eur.Phys.J.C51:185-192,2007 · 8 pages, 2 figures. Minor changes, typos corrected. Accepted for publication in Eur. Phys. J. C
openalex publication_date 2007/04/18 · arxiv created 2007/05/22 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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 Ω> 1, 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.