3 papers
hep-th2026
Revisiting near-extremal and near-BPS black holes in AdS3 supergravity
Adam Bac, Alejandra Castro, Diksha Jain
Despite the archetypal status of the BTZ background in quantifying quantum aspects of black holes, several features at low temperatures remain imprecise and incomplete. Here, we sy…
hep-th2025
Near-extremal dynamics away from the horizon
Alejandra Castro, Robinson Mancilla, Ioannis Papadimitriou
Near-extremal black holes are usually studied by zooming into the throat that describes their near-horizon geometry. Within this throat, one can argue that two-dimensional JT gravi…
hep-th2025
Quantum corrections to the path integral of near extremal de Sitter black holes
Matthew J. Blacker, Alejandra Castro, Watse Sybesma +1
We study quantum corrections to the Euclidean path integral of charged and static four-dimensional de Sitter (dS) black holes near extremality. These black holes admit three di…