Tachyonic open inflationary universes

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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.
13 pages, 7 figures. Accepted by Physics Letters B

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General Relativity and Quantum Cosmology

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http://salesiana.dossiersoluciones.com/handle/123456789/194378

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/gr-qc/0703026
 http://arxiv.org/abs/gr-qc/0703026
 Phys.Lett.B647:313-319,2007
 doi:10.1016/j.physletb.2007.02.011

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arXiv