20 citations · 44 across the 6 of their papers we have counts for
6 papers
Running Love Numbers of Charged Black Holes
Sergio Barbosa, Sylvain Fichet, Lucas de Souza
Loops of virtual particles from the vacuum of quantum field theory (QFT) render black holes tidally deformable. We compute the static tidal response of unspinning charged black hol…
The LHC as an Axion-Photon Collider
Sergio Barbosa, Matheus Coelho, Sylvain Fichet +2
Assuming the existence of an axion-like particle (ALP), beams of relativistic particles emit fluxes of quasi-real ALPs, analogous to the photon fluxes described by Weizsäcker-Willi…
On The Black Hole Weak Gravity Conjecture and Extremality in the Strong-Field Regime
Sergio Barbosa, Sylvain Fichet, Lucas de Souza
We point out that the Weak Gravity Conjecture (WGC) implies that sufficiently small extremal black holes are necessarily in the strong-field regime of electrodynamics, and therefor…
Running Love Numbers and the Effective Field Theory of Gravity
Sergio Barbosa, Philippe Brax, Sylvain Fichet +1
Massive states produce higher derivative corrections to Einstein gravity in the infrared, which are encoded into operators of the Effective Field Theory (EFT) of gravity. These EFT…
Entanglement Entropy and Thermal Phase Transitions from Curvature Singularities
Sergio Barbosa, Sylvain Fichet, Eugenio Megias +1
We study holographic entanglement entropy and revisit thermodynamics and confinement in the dilaton-gravity system. Our analysis focuses on a solvable class of backgrounds that inc…
Background-Induced Forces from Dark Relics
Sergio Barbosa, Sylvain Fichet
Light particles quadratically coupled to nucleons induce macroscopic forces in matter. While a quantum effect always exists, an additional force occurs in the presence of a finite…