Large metric perturbations from rescattering

Details Large metric perturbations from rescattering Large metric perturbations from rescattering

2000-09-08

arxiv.org/abs/hep-ph/0009093v3

Phys.Lett. B504 (2001) 309-313

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, revtex, 4 figures; corrected typo in eq. (1). Time variable in the plots was slightly messed up: fixed in v3 (a cosme

Scientific paper

10.1016/S0370-2693(01)00288-X

We study numerically evolution of metric perturbations during reheating in a model with two fields and a strong parametric resonance. Our calculation is fully nonlinear and includes gravity but is restricted to spherical symmetry. In this model, super-Hubble metric perturbations can grow during reheating only due to effects nonlinear in fluctuations of the fields. We find that they indeed grow and, soon after the growth begins, dominate variances of the metric functions. Thus, the metric functions become smooth but varying significantly over large scales. Their profiles at late times are interpreted as signalling a gravitational instability and formation of a black hole.

Affiliated with

Also associated with

No associations

Rating

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

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-24998