Scalar Curvature Invariants in Classical and Quantum Gravity
arXiv:2106.05926
Abstract
A short review of scalar curvature invariants in gravity theories is presented. We introduce how these invariants are constructed and discuss the minimal number of invariants required for a given spacetime. We then discuss applications of these invariants and focus on three topics that are of particular interest in modern gravity theories.
Essay written for the Gravity Research Foundation 2021 Awards for Essays on Gravitation