Gravitational waves from p-form inflation

Details Gravitational waves from p-form inflation Gravitational waves from p-form inflation

2009-03-16

arxiv.org/abs/0903.2769v2

JCAP 0905:004,2009

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

9 pages

Scientific paper

10.1088/1475-7516/2009/05/004

Recently it was shown that an inflationary background can be realized by any $p$-form field non-minimally coupled to gravity. In this paper, we study gravitational waves generated during p-form inflation. Even though the background evolution is identical to that in conventional scalar field inflation, the behavior of gravitational waves is different in p-form inflation. In particular, we find that the propagation speed of gravitational waves differs from unity in 2- and 3-form inflationary models. We point out that the squared speed becomes negative in the large field models. The small field models are free from pathologies and the correction to the spectrum of gravitational waves turns out to be very small.

Affiliated with

Also associated with

No associations

Rating

Gravitational waves from p-form inflation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gravitational waves from p-form inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational waves from p-form inflation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-224030