Minimal cut-off vacuum state constraints from CMB bispectrum statistics

Details Minimal cut-off vacuum state constraints from CMB bispectrum statistics Minimal cut-off vacuum state constraints from CMB bispectrum statistics

2010-09-28

arxiv.org/abs/1009.5660v1

Phys.Rev.D83:043520,2011

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, 1 figure

Scientific paper

10.1103/PhysRevD.83.043520

In this short note we translate the best available observational bounds on the CMB bispectrum amplitudes into constraints on a specific scale-invariant New Physics Hypersurface (NPH) model of vacuum state modifications, as first proposed by Danielsson, in general models of single-field inflation. As compared to the power spectrum the bispectrum constraints are less ambiguous and provide an interesting upper bound on the cut-off scale in general models of single-field inflation with a small speed of sound. This upper bound is incompatible with the power spectrum constraint for most of the parameter domain, leaving very little room for minimal cut-off vacuum state modifications in general single-field models with a small speed of sound.

Affiliated with

Also associated with

No associations

Rating

Minimal cut-off vacuum state constraints from CMB bispectrum statistics 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 Minimal cut-off vacuum state constraints from CMB bispectrum statistics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Minimal cut-off vacuum state constraints from CMB bispectrum statistics will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-694923