Vorticity generation at second order in cosmological perturbation theory
Cosmology and Nongalactic Astrophysics
2011-11-10 v3 General Relativity and Quantum Cosmology
Abstract
We show that at second order in cosmological perturbation theory vorticity generation is sourced by entropy gradients. This is an extension of Crocco's theorem to a cosmological setting.
Cite
@article{arxiv.0904.0940,
title = {Vorticity generation at second order in cosmological perturbation theory},
author = {Adam J. Christopherson and Karim A. Malik and David R. Matravers},
journal= {arXiv preprint arXiv:0904.0940},
year = {2011}
}
Comments
4 pages, revtex4; v2: discussion expanded, references added, version being submitted; v3: corresponds to version published in PRD