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arXiv · 2112.01974

On Quadratic Gravity

John F. Donoghue·Gabriel Menezes
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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.

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John F. Donoghue, Gabriel Menezes. 2021-12-03. On Quadratic Gravity. https://arxiv.org/abs/2112.01974

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