A new approach to the vacuum of inflationary models

Details A new approach to the vacuum of inflationary models A new approach to the vacuum of inflationary models

2010-12-21

arxiv.org/abs/1012.4811v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

24 pages, 7 figures

Scientific paper

A new approach is given for the implementation of boundary conditions used in solving the Mukhanov-Sasaki equation in the context of inflation. The familiar quantization procedure is reviewed, along with a discussion of where one might expect deviations from the standard approach to arise. The proposed method introduces a (model dependent) fitting function for the z"/z and a"/a terms in the Mukhanov-Sasaki equation for scalar and tensor modes, as well as imposes the boundary conditions at a finite conformal time. As an example, we employ a fitting function, and compute the spectral index, along with its running, for a specific inflationary model which possesses background equations that are analytically solvable. The observational upper bound on the tensor to scalar ratio is used to constrain the parameters of the boundary conditions in the tensor sector as well. An overview on the generalization of this method is also discussed.

Affiliated with

Also associated with

No associations

Rating

A new approach to the vacuum of inflationary models 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 A new approach to the vacuum of inflationary models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A new approach to the vacuum of inflationary models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-580977