Chaplygin inspired Inflation

Details Chaplygin inspired Inflation Chaplygin inspired Inflation

2006-03-14

arxiv.org/abs/astro-ph/0603366v3

Phys.Lett.B640:121-125,2006

Astronomy and Astrophysics

Astrophysics

Revtex4, 5 pages. Version to match the one published in Physics Letters B

Scientific paper

10.1016/j.physletb.2006.08.025

We discuss chaotic inflation in the context of a phenomenological modification of gravity inspired by the Chaplygin gas equation of state. We find that all observationalconstraints can be satisfied provided the Chaplygin scale is smaller than $6.9 \times 10^{-3} M$ and the inflaton mass is smaller than $4.7 \times 10^{-6} M$, respectively, where $M^2\equiv(8 \pi G)^{-1} is the reduced Planck mass.

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