Optimal polarisation equations in FLRW universes
Cosmology and Nongalactic Astrophysics
2015-06-15 v2
Abstract
This paper presents the linearised Boltzmann equation for photons for scalar, vector and tensor perturbations in flat, open and closed FLRW cosmologies. We show that E- and B-mode polarisation for all types can be computed using only a single hierarchy. This was previously shown explicitly for tensor modes in flat cosmologies but not for vectors, and not for non-flat cosmologies.
Keywords
Cite
@article{arxiv.1305.3261,
title = {Optimal polarisation equations in FLRW universes},
author = {Thomas Tram and Julien Lesgourgues},
journal= {arXiv preprint arXiv:1305.3261},
year = {2015}
}
Comments
27 pages, prepared for submission to JCAP. Matches published version