Looking at extremal black holes from very far away

M Kolanowski, D Marolf, I Rakic, M Rangamani… - arxiv preprint arxiv …, 2024 - arxiv.org
Near-extremal black holes are subject to large quantum effects, which modify their low-
temperature thermodynamic behavior. Hitherto, these quantum effects were analyzed by …

On the nature of ensembles from gravitational path integrals

DM Marolf - Journal of Physics A: Mathematical and Theoretical, 2024 - iopscience.iop.org
Spacetime wormholes in gravitational path integrals have long been known to lead to
interpretations in terms of an ensemble of theories. Here we probe the question of precisely …

New Well-Posed boundary conditions for semi-classical Euclidean gravity

X Liu, JE Santos, T Wiseman - Journal of High Energy Physics, 2024 - Springer
A bstract We consider four-dimensional Euclidean gravity in a finite cavity. Dirichlet
conditions do not yield a well-posed elliptic system, and Anderson has suggested boundary …

Constraining the UV with the electroweak effective action

I Kuntz, A Malagi - Journal of High Energy Physics, 2025 - Springer
A bstract By considering an arbitrary bare action describing BSM physics, we use the
Barvinsky-Vilkovisky resummation to obtain the most general non-local electroweak effective …