6 papers
How to (Non-)Perturb a BPS Black Hole
Alberto Castellano, Matteo Zatti
We relate the structure of non-perturbative corrections to BPS black hole observables in flat-spacetime theories with certain properties of probe charged particles in the near-hori…
On Supersymmetric D-brane probes in 4d Attractors
Alberto Castellano, Carmine Montella, Matteo Zatti
We extend the -symmetry analysis of supersymmetric D-brane probes in the attractor geometry, originally performed by Simons, Strominger, Th…
Exact Path Integral Methods in Supersymmetric Backgrounds
Alberto Castellano, Carmine Montella, Matteo Zatti
We determine the exact functional determinants of charged, massive spin-0 and spin- particles in backgrounds threaded by constant electri…
Curvature divergences and gravity decoupling in Calabi--Yau rigid limits
Alberto Castellano, Fernando Marchesano, Lorenzo Paoloni
Four-dimensional supergravity theories become rigid in gravity-decoupling limits. We study this effect for type II string compactifications on general Calabi--Yau m…
The Moduli Space Curvature and the Weak Gravity Conjecture
Alberto Castellano, Fernando Marchesano, Luca Melotti +1
We unveil a remarkable interplay between rigid field theories (RFTs), charge-to-mass ratios and scalar curvature divergences in the vector multiplet mod…
The Double EFT Expansion in Quantum Gravity
José Calderón-Infante, Alberto Castellano, Alvaro Herráez
In this work, we aim to characterize the structure of higher-derivative corrections within low-energy Effective Field Theories (EFTs) arising from a UV-complete theory of quantum g…