Tachyonic open inflationary universes
Leonardo Balart, Sergio del Campo, Ramon Herrera, Pedro Labrana and, Joel Saavedra
TL;DR
This paper investigates open inflation models driven by tachyon matter, focusing on the existence of Coleman-De Lucia instantons and the subsequent inflationary dynamics after tunneling.
Contribution
It characterizes the existence of CDL instantons and analyzes the inflationary period in tachyon-driven open universe models, a novel approach in this context.
Findings
Existence of Coleman-De Lucia instantons in tachyonic open inflation
Analysis of inflationary dynamics post-tunneling in tachyon models
Characterization of conditions for open inflation with tachyon matter
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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