Practical tools for third order cosmological perturbations
Cosmology and Nongalactic Astrophysics
2014-11-20 v2
Abstract
We discuss cosmological perturbation theory at third order, deriving the gauge transformation rules for metric and matter perturbations, and constructing third order gauge invariant quantities. We present the Einstein tensor components, the evolution equations for a perfect fluid, and the Klein-Gordon equation at third order, including scalar, vector and tensor perturbations. In doing so, we also give all second order tensor components and evolution equations in full, exhilarating generality.
Cite
@article{arxiv.0909.0942,
title = {Practical tools for third order cosmological perturbations},
author = {Adam J. Christopherson and Karim A. Malik},
journal= {arXiv preprint arXiv:0909.0942},
year = {2014}
}
Comments
17 pages, revtex4; v2: corresponds to version published in JCAP