Parametric Amplification of Gravitational Fluctuations During Preheating

Details Parametric Amplification of Gravitational Fluctuations During Preheating Parametric Amplification of Gravitational Fluctuations During Preheating

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.165f&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

We demonstrate that cosmological perturbations (CP) can undergo amplification by parametric resonance (PR) during the preheating period following inflation, even on scales larger than the Hubble radius, without violating causality. A unified description of gravitational and matter fluctuations is crucial to describe PR in CP and to compare it with the usual growth of CP in inflationary models. The effect of PR on large scale CP is very model dependent, but it may turn out to be useful to differentiate the predictions of the inflationary models. Moreover, additional amplification due to PR occurs at smaller scales, which are comparable to the inverse effective mass of the inflaton.

Affiliated with

Also associated with

No associations

Rating

Parametric Amplification of Gravitational Fluctuations During Preheating 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 Parametric Amplification of Gravitational Fluctuations During Preheating, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Parametric Amplification of Gravitational Fluctuations During Preheating will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-767875