20 citations · 43 across the 8 of their papers we have counts for
8 papers
-Photon Amplitudes in EFT from Recursion Relations and Effective Vertices
Gustavo Bispo, Sylvain Fichet
We present a recursive framework for computing arbitrary tree-level helicity amplitudes in the general effective field theory (EFT) of electromagnetism. We show that photon amplitu…
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…
Vortex Fractional Fermion Number through Heat Kernel methods and Edge States
Sylvain Fichet, Rodrigo Fresneda, Lucas de Souza +1
Computing the vacuum expectation of fermion number operator on a soliton background is often challenging. A recent proposal in arXiv:2305.13606 simplifies this task by considering…
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…
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…
Casimir Forces in CFT with Defects and Boundaries
Philippe Brax, Sylvain Fichet
We investigate the quantum forces occurring between the defects and/or boundaries of a conformal field theory (CFT). We propose to model imperfect defects and boundaries as localiz…