Work

Quantum gravitational corrections in cosmology

Year: 2024

Type: article

Abstract: 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.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2024.139208

Authors: Xavier Calmet, Roberto Casadio, Marco Sebastianutti

Institutions: University of Sussex, Istituto Nazionale di Fisica Nucleare, Sezione di Bologna, University of Bologna

Language: English

Topic: Noncommutative and Quantum Gravity Theories

Subfield: Statistical and Nonlinear Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: diamond