Cosmological perturbation theory
Astrophysics
2015-06-24 v2
Abstract
This is a review on cosmological perturbation theory. After an introduction, it presents the problem of gauge transformation. Gauge invariant variables are introduced and the Einstein and conservation equations are written in terms of these variables. Some examples, especially perfect fluids and scalar fields are presented in detail. The generation of perturbations during inflation is studied. Lightlike geodesics and their relevance for CMB anisotropies are briefly discussed. Perturbation theory in braneworlds is also introduced.
Cite
@article{arxiv.astro-ph/0402129,
title = {Cosmological perturbation theory},
author = {Ruth Durrer},
journal= {arXiv preprint arXiv:astro-ph/0402129},
year = {2015}
}
Comments
my course at the Second Aegean Summerschool on the Early Universe, 39 pages (I have corrected some typos)