Infrared Propagator Corrections for Constant Deceleration

Details Infrared Propagator Corrections for Constant Deceleration Infrared Propagator Corrections for Constant Deceleration

2008-08-18

arxiv.org/abs/0808.2449v1

Class.Quant.Grav.25:245013,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

34 pages, uses LaTeX 2 epsilon

Scientific paper

10.1088/0264-9381/25/24/245013

We derive the propagator for a massless, minimally coupled scalar on a $D$-dimensional, spatially flat, homogeneous and isotropic background with arbitrary constant deceleration parameter. Our construction uses the operator formalism, by integrating the Fourier mode sum. We give special attention to infrared corrections from the nonzero lower limit associated with working on finite spatial sections. These corrections eliminate infrared divergences that would otherwise be incorrectly treated by dimensional regularization, resulting in off-coincidence divergences for those special values of the deceleration parameter at which the infrared divergence is logarithmic. As an application we compute the expectation value of the scalar stress-energy tensor.

Affiliated with

Also associated with

No associations

Rating

Infrared Propagator Corrections for Constant Deceleration 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 Infrared Propagator Corrections for Constant Deceleration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrared Propagator Corrections for Constant Deceleration will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-698786