Anomaly-free cosmological perturbations in effective canonical quantum gravity

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

Research output: Contribution to journalArticlepeer-review

83 Scopus citations


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 languageEnglish (US)
Article number051
JournalJournal of Cosmology and Astroparticle Physics
Issue number5
StatePublished - May 26 2015

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics


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