Anomaly-free cosmological perturbations in effective canonical quantum gravity
General Relativity and Quantum Cosmology
2015-05-27 v2 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
This article lays out a complete framework for an effective theory of cosmological perturbations with corrections from canonical quantum gravity. Since several examples exist for quantum-gravity effects that change the structure of space-time, the classical perturbative treatment must be rethought carefully. The present discussion provides a unified picture of several previous works, together with new treatments of higher-order perturbations and the specification of initial states.
Keywords
Cite
@article{arxiv.1404.1018,
title = {Anomaly-free cosmological perturbations in effective canonical quantum gravity},
author = {Aurelien Barrau and Martin Bojowald and Gianluca Calcagni and Julien Grain and Mikhail Kagan},
journal= {arXiv preprint arXiv:1404.1018},
year = {2015}
}
Comments
1+52 pages. v2: discussions extended and improved throughout the text, references added, typos corrected, conclusions unchanged