Gauge invariant metric perturbations during reheating

Details Gauge invariant metric perturbations during reheating Gauge invariant metric perturbations during reheating

2001-08-11

arxiv.org/abs/gr-qc/0108035v1

Nuovo Cim.B116:945-950,2001

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages, 2 figures (To appear in Il Nuovo Cimento B)

Scientific paper

The possible amplification of gauge invariant metric fluctuations in the infrared sector are very important during reheating stage of inflation. In this stage the inflaton oscillates arount the minimum of the scalar potential. The evolution for super Hubble scales gauge invariant metric fluctuations can be studied by means of the Bardeen parameter. For a massive scalar field with a quadratic potential for a nonzero cosmological constant. I find that (in the reheating regime and for super Hubble scales), the Sasaki-Mukhanov parameter oscillates with amplitude constant such that there is no amplification of $Q$ during reheating.

Affiliated with

Also associated with

No associations

Rating

Gauge invariant metric perturbations during reheating 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 Gauge invariant metric perturbations during reheating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gauge invariant metric perturbations during reheating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-177738