Closed inflationary universe with tachyonic field

L. Balart; S. Del Campo; R. Herrera; P. Labraña

doi:10.1140/epjc/s10052-007-0288-5

Closed inflationary universe with tachyonic field

L. Balart, S. Del Campo, R. Herrera, P. Labraña

INSTITUTE OF PHYSICS

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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.

Original language	English
Pages (from-to)	185-192
Number of pages	8
Journal	European Physical Journal C
Volume	51
Issue number	1
DOIs	https://doi.org/10.1140/epjc/s10052-007-0288-5
State	Published - Jun 2007

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title = "Closed inflationary universe with tachyonic field",

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.",

author = "L. Balart and {Del Campo}, S. and R. Herrera and P. Labra{\~n}a",

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AU - Balart, L.

AU - Del Campo, S.

AU - Herrera, R.

AU - Labraña, P.

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AB - 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.

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Closed inflationary universe with tachyonic field

Abstract

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