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Tachyonic open inflationary universes

Leonardo Balart·Sergio del Campo·Ramon Herrera·Pedro Labrana·Joel Saavedra
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Abstract

We study one-field open inflationary models in a universe dominated by tachyon matter. In these scenarios, we determine and characterize the existence of the Coleman-De Lucia (CDL) instanton. Also, we study the Lorentzian regime, that is, the period of inflation after tunnelling has occurred.

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Leonardo Balart, Sergio del Campo, Ramon Herrera, Pedro Labrana, Joel Saavedra. 2007-03-05. Tachyonic open inflationary universes. https://doi.org/10.1016/j.physletb.2007.02.011

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