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Closed inflationary universe with tachyonic field

Leonardo Balart·Sergio del Campo·Ramon Herrera·Pedro Labrana
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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 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.

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Leonardo Balart, Sergio del Campo, Ramon Herrera, Pedro Labrana. 2007-05-22. Closed inflationary universe with tachyonic field. https://doi.org/10.1140/epjc%2Fs10052-007-0288-5

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