Density Perturbations in String Cosmology

Details Density Perturbations in String Cosmology Density Perturbations in String Cosmology

1997-05-29

arxiv.org/abs/gr-qc/9705082v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, Latex, no figures

Scientific paper

We discuss the generation and evolution of density perturbations during the large curvature phase of string cosmology. We find that perturbations in the scalar components of the metric evolve with cosmic time as $\exp (\gamma H_st)$ where $H_s$ is the Hubble constant during the string phase and $\gamma$ is a constant which is determined by an algebraic equation involving all orders in the string coupling $\alpha '$. The seed for the perturbations can be provided by massive string modes.

Affiliated with

Also associated with

No associations

Rating

Density Perturbations in String Cosmology 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 Density Perturbations in String Cosmology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Density Perturbations in String Cosmology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-329787