EFT for Black Hole perturbations: testing extensions to General Relativity with Gravitational Waves

by Enrico Trincherini (Scuola Normale Superiore di Pisa)

Monday 16 Apr 2018, 14:30 → 16:00 Europe/Rome

Aula Conversi (Dipartimento di Fisica - Ed. G. Marconi)

I will show how to construct an Effective Field Theory (EFT) forperturbations around spherically symmetric backgrounds. The quadraticoperators of the Lagrangian can be constrained by the observations of quasi normal mode excitations during the ringdown of a black hole. ThisEFT can thus provide a model-independent way to parametrize deviationsfrom General Relativity in theories with an extra scalar degree of freedom.