The Impact of Ultraviolet Regularization on the Spectrum of Curvature Perturbations During Inflation

Details The Impact of Ultraviolet Regularization on the Spectrum of Curvature Perturbations During Inflation The Impact of Ultraviolet Regularization on the Spectrum of Curvature Perturbations During Inflation

2007-07-10

arxiv.org/abs/0707.1416v1

Phys.Rev.D76:103528,2007

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, 4 figures

Scientific paper

10.1103/PhysRevD.76.103528

Inflationary predictions based on the linear theory of cosmological perturbations are related to the two point function of a (second quantized) real scalar free field during the accelerated stage. Such a two point function is finite, in contrast with its coincidence limit, which is divergent due to the ultraviolet divergences proper of field theory. We therefore argue that predictions of most of the inflationary models do not necessarily need a regularization scheme to leading order, i.e. tree level, which is required instead for non-linear corrections or calculations involving the energy-momentum tensor. We also discuss unpleasant features of the "would be" regularized spectrum obtained using the traditional fourth order adiabatic subtraction.

Affiliated with

Also associated with

No associations

Rating

The Impact of Ultraviolet Regularization on the Spectrum of Curvature Perturbations During Inflation 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 The Impact of Ultraviolet Regularization on the Spectrum of Curvature Perturbations During Inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Impact of Ultraviolet Regularization on the Spectrum of Curvature Perturbations During Inflation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-453588