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Anomaly-free cosmological perturbations in effective canonical quantum gravity

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Published 26 May 2015 © 2015 IOP Publishing Ltd and Sissa Medialab srl
, , Citation Aurelien Barrau et al JCAP05(2015)051 DOI 10.1088/1475-7516/2015/05/051

1475-7516/2015/05/051

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.

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10.1088/1475-7516/2015/05/051