Anomaly-free cosmological perturbations in effective canonical quantum gravity

Aurelien Barrau; Gianluca Calcagni; Julien Grain; Martin Bojowald; Mikhail Kagan

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Anomaly-free cosmological perturbations in effective canonical quantum gravity

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arxiv 1404.1018 v2 pith:4V6IDE5R submitted 2014-04-03 gr-qc astro-ph.COhep-th

Aurelien Barrau , Martin Bojowald , Gianluca Calcagni , Julien Grain , Mikhail Kagan This is my paper

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keywords perturbationscanonicalcosmologicaleffectivegravityquantumseveralanomaly-free

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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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