Perturbative analysis of non-singular cosmological model
General Relativity and Quantum Cosmology
2007-05-23 v1
Abstract
A stability analysis is made for a non-singular pre-big-bang like cosmological model based on 1-loop corrected string effective action. Its homogeneous and isotropic solution realizes non-singular transition from de Sitter universe to Friedmann-like universe, via super inflation phase. We are interested in whether the non-singular nature of the solution would be stable or not in more general inhomogeneous case. Perturbative analysis is made for scalar, vector, and tensor linear perturbations, and instability is found for tensor-type perturbation.
Cite
@article{arxiv.gr-qc/9901065,
title = {Perturbative analysis of non-singular cosmological model},
author = {Shinsuke Kawai and Masa-aki Sakagami and Jiro Soda},
journal= {arXiv preprint arXiv:gr-qc/9901065},
year = {2007}
}
Comments
Talk at YITP, Kyoto, in the Seventh Workshop on General Relativity and Gravitation (Oct., 1997)