Astronomy and Astrophysics – Astrophysics
Scientific paper
2008-04-05
Phys.Rev.D77:121301,2008
Astronomy and Astrophysics
Astrophysics
5 pages RevTeX with 3 figures incorporated
Scientific paper
10.1103/PhysRevD.77.121301
We construct an explicit scenario whereby the same material driving inflation in the early Universe can comprise dark matter in the present Universe, using a simple quadratic potential. Following inflation and preheating, the density of inflaton/dark matter particles is reduced to the observed level by a period of thermal inflation, of a duration already invoked in the literature for other reasons. Within the context of the string landscape, one can further argue for a non-zero vacuum energy of this field, thus unifying inflation, dark matter and dark energy into a single fundamental field.
Liddle Andrew R.
Pahud Cédric
Urena-Lopez Luis Arturo
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