Closed inflationary universe with tachyonic field |
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Authors: | L Balart S del Campo R Herrera P Labraña |
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Institution: | (1) Instituto de Física, Pontificia Universidad Católica de Valparaíso, Casilla, 4950 Valparaíso, Chile |
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Abstract: | In this article we study closed inflationary universe models by using a tachyonic field theory. We determine and characterize
the existence of a universe which has Ω>1 and which describes a period of inflation. We find that the considered models are
less restrictive compared to the standard ones with a scalar field. We use recent astronomical observations to constrain the
parameters appearing in the model. The results obtained are compared to those found in the standard scalar field inflationary
universes.
PACS 98.80.Bp; 98.80.Cq |
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