On matching conditions for cosmological perturbations
General Relativity and Quantum Cosmology
2009-07-09 v1 High Energy Physics - Theory
Abstract
We derive the matching conditions for cosmological perturbations in a Friedmann Universe where the equation of state undergoes a sharp jump, for instance as a result of a phase transition. The physics of the transition which is needed to follow the fate of the perturbations is clarified. We dissipate misleading statements made recently in the literature concerning the predictions of the primordial fluctuations from inflation and confirm standard results. Applications to string cosmology are considered.
Keywords
Cite
@article{arxiv.gr-qc/9503050,
title = {On matching conditions for cosmological perturbations},
author = {Nathalie Deruelle and V. F. Mukhanov},
journal= {arXiv preprint arXiv:gr-qc/9503050},
year = {2009}
}
Comments
20 pages, latex (revtex), no figures