Quantum gravitational corrections in cosmology
We show how to reliably calculate quantum gravitational corrections to cosmological models using the unique effective action formalism for quantum gravity. Our calculations are model independent and apply to any ultra-violet complete theory of quantum gravity that admit general relativity as a low energy theory. We show that it is important to consider the full effective action to obtain renormalization group invariant solutions. We investigate the validity range of our techniques within simple cosmological models.
Authors
- Roberto Casadio (ORCID: https://orcid.org/0000-0002-1330-7787)
- Marco Sebastianutti (ORCID: https://orcid.org/0000-0002-8505-773X)
- Xavier Calmet (ORCID: https://orcid.org/0000-0002-4571-0570)
Institutions
- University of Sussex (GB)
- Osservatorio astronomico di Bologna (IT)
- Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (IT)
- University of Bologna (IT)
Publication Details
- Journal
- Physics Letters B
- Published
- 2024-12-18
- DOI
- https://doi.org/10.1016/j.physletb.2024.139208
- Citations
- 1
- Primary Topic
- Cosmology and Gravitation Theories
- Type
- article
- Field-Weighted Citation Impact
- 0.33
Funders
- Istituto Nazionale di Alta Matematica "Francesco Severi"
- Istituto Nazionale di Fisica Nucleare
- Gruppo Nazionale per la Fisica Matematica
- Science and Technology Facilities Council
- Instituto Nazionale di Fisica Nucleare