Tachyonic open inflationary universes

Details Tachyonic open inflationary universes Tachyonic open inflationary universes

2007-03-05

arxiv.org/abs/gr-qc/0703026v1

Phys.Lett.B647:313-319,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, 7 figures. Accepted by Physics Letters B

Scientific paper

10.1016/j.physletb.2007.02.011

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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