Background independence and field redefinitions in quantum gravity
High Energy Physics - Theory
2023-01-25 v2 General Relativity and Quantum Cosmology
Abstract
It is generally believed that a full-fledged theory of quantum gravity should exhibit background independence and diffeomorphism invariance. In its most general form, the latter comprises field redefinitions, which are diffeomorphisms in configuration space. We show that any path-integral approach to quantum gravity leads to a tension between these properties, such that they cannot hold simultaneously.
Cite
@article{arxiv.2210.04368,
title = {Background independence and field redefinitions in quantum gravity},
author = {Roberto Casadio and Alexander Kamenshchik and Iberê Kuntz},
journal= {arXiv preprint arXiv:2210.04368},
year = {2023}
}
Comments
matches version accepted for publication