Research Explores Near-Extremal Black Holes in Quadratic Gravity

A new preprint investigates near-extremal black holes within quadratic gravity, specifically dynamical Chern-Simons and scalar Gauss-Bonnet gravity. The study uses pseudospectral methods to construct rapidly rotating exterior solutions. This research aims to understand how higher-derivative corrections to general relativity are amplified by near-extremal black holes, offering insights into gravitational effective field theory.