Gravitational Radiation from Preheating with Many Fields

Details Gravitational Radiation from Preheating with Many Fields Gravitational Radiation from Preheating with Many Fields

2010-06-04

arxiv.org/abs/1006.0935v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

7 pages, 8 figures, v2 submission version, thank you for comments!

Scientific paper

Parametric resonances provide a mechanism by which particles can be created just after inflation. Thus far, attention has focused on a single or many inflaton fields coupled to a single scalar field. However, generically we expect the inflaton to couple to many other relativistic degrees of freedom present in the early universe. Using simulations in an expanding Friedmann-Lema\^itre-Robertson-Walker spacetime, in this paper we show how preheating is affected by the addition of multiple fields coupled to the inflaton. We focus our attention on gravitational wave production--an important potential observational signature of the preheating stage. We find that preheating and its gravitational wave signature is robust to the coupling of the inflaton to more matter fields.

Affiliated with

Also associated with

No associations

Rating

Gravitational Radiation from Preheating with Many Fields 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 Radiation from Preheating with Many Fields, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational Radiation from Preheating with Many Fields will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-723093