-
Article
Open AccessCFT description of BH’s and ECO’s: QNMs, superradiance, echoes and tidal responses
Using conformal field theory and localization tecniques we study the propagation of scalar waves in gravity backgrounds described by Schrödinger like equations with Fuchsian singularities. Exact formulae for t...
-
Article
Open AccessPerturbative higher-derivative terms in \( \mathcal{N} \) = 6 asymmetric orbifolds
We analyse the perturbative four-point amplitudes in the simplest string theory examples of T-fold backgrounds, which enjoy ...
-
Article
Open AccessMore on the SW-QNM correspondence
We exploit the recently proposed correspondence between gravitational perturbations and quantum Seiberg-Witten curves to compute the spectrum of quasi-normal modes of asymptotically flat Kerr Newman black hole...
-
Article
Open AccessOn the N-pion extension of the Lovelace-Shapiro model
We reconsider a modification of the N-point amplitude of the Neveu-Schwarz (NS) model in which the tachyon becomes a pion by shifting its mass to zero and kee** the super-projective invariance of the integrand ...
-
Article
Open AccessThe multipolar structure of fuzzballs
We extend and refine a general method to extract the multipole moments of arbitrary stationary spacetimes and apply it to the study of a large family of regular horizonless solutions to
-
Article
Open AccessProbing fuzzballs with particles, waves and strings
We probe D1D5 micro-state geometries with massless particles, waves and strings. To this end, we study geodetic motion, Klein-Gordon equation and string scattering in the resulting gravitational background. Du...
-
Article
Open AccessSimplifying one-loop amplitudes in superstring theory
We show that 4-point vector boson one-loop amplitudes, computed in [1] in the RNS formalism, around vacuum configurations with open unoriented strings, preserving at least
