Contribution of the Weyl tensor to R2 inflation

Details Contribution of the Weyl tensor to R2 inflation Contribution of the Weyl tensor to R2 inflation

Aug 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvd..44.1020b&link_type=abstract

Physical Review D (Particles, Fields, Gravitation, and Cosmology), Volume 44, Issue 4, 15 August 1991, pp.1020-1027

Physics

19

Scientific paper

To study the generality of inflation from Lagrangians containing higher powers of curvature, the effects of the square of the Weyl tensor, C2==CαβγδCαβγδ, on the R2 inflationary scenario is considered. By examining the stability of radiation-dominated Robertson-Walker universes for small perturbations, the C2 term is determined to enter with a negative coupling constant. Both analytical arguments and numerical methods are used to investigate the influence of the various derivatives of the anisotropy in a Bianchi type-I universe. While a small anisotropy only slightly modifies the standard R2 scenario, for sufficiently large anisotropy the universe cannot isotropize and recollapse subsequently ensues. The critical values at which this behavior occurs are estimated. Thus, the inclusion of C2 terms restricts the success of R2 inflation.

Affiliated with

Also associated with

No associations

Rating

Contribution of the Weyl tensor to R2 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 Contribution of the Weyl tensor to R2 inflation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Contribution of the Weyl tensor to R2 inflation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1307261