On Quadratic Gravity
High Energy Physics - Theory
2021-12-06 v1 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
We provide a brief overview of what is known about Quadratic Gravity, which includes terms quadratic in the curvatures in the fundamental action. This is proposed as a renormalizeable UV completion for quantum gravity which continues to use the metric as the fundamental dynamical variable. However, there are unusual field-theoretic consequences because the propagators contain quartic momentum dependence. At the present stage of our understanding, Quadratic Gravity continues to be a viable candidate for a theory of quantum gravity.
Keywords
Cite
@article{arxiv.2112.01974,
title = {On Quadratic Gravity},
author = {John F. Donoghue and Gabriel Menezes},
journal= {arXiv preprint arXiv:2112.01974},
year = {2021}
}
Comments
9 pages. This is a distant reflection of a talk given by JFD at the online workshop on Quantum Gravity, Higher Derivatives and Nonlocality, and is to be published in a special volume for the workshop