Scalar perturbations in p-nflation: the 3-form case

Details Scalar perturbations in p-nflation: the 3-form case Scalar perturbations in p-nflation: the 3-form case

2009-07-31

arxiv.org/abs/0908.0001v4

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

13 pages; v4: clarifications added. Comment on the gravitational instability of 1- and 2-form inflation added. Version accepte

Scientific paper

We calculate the primordial spectrum of scalar perturbations of the 3-form
inflation and we find that the curvature perturbations decay at late times. As
as result, although a non-minimally coupled massive 3-form field may drive
inflation at early times, it should be assisted by other fields in order to
reproduce the observed temperature fluctuations of the CMB sky.

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