Tachyonic Quintessential Inflation

Details Tachyonic Quintessential Inflation Tachyonic Quintessential Inflation

2006-03-07

arxiv.org/abs/gr-qc/0603013v2

Phys.Rev. D73 (2006) 103512

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, Revtex4. Added some references. To be published in Physical Review D

Scientific paper

10.1103/PhysRevD.73.103512

We study the possibility to construct an observationally viable scenario where both early Inflation and the recently detected accelerated expansion of the universe can be explained by using a single scalar field associated with the Tachyon. The Reheating phase becomes crucial to enable us to have a consistent cosmology and also to get a second accelerated expansion period. A discussion using an exponential potential is presented.

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