Anomaly-free cosmological perturbations in effective canonical quantum gravity

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

doi:10.1088/1475-7516/2015/05/051

Anomaly-free cosmological perturbations in effective canonical quantum gravity

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

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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.

Original language	English (US)
Article number	051
Journal	Journal of Cosmology and Astroparticle Physics
Volume	2015
Issue number	5
DOIs	https://doi.org/10.1088/1475-7516/2015/05/051
State	Published - May 26 2015

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics

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10.1088/1475-7516/2015/05/051

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AU - Calcagni, Gianluca

AU - Grain, Julien

AU - Kagan, Mikhail

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AB - 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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Anomaly-free cosmological perturbations in effective canonical quantum gravity

Abstract

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