Black Hole Perturbations and Holography

Towards Quadratic Quasi-Normal Modes of Black Holes

Not scheduled

20m

Seminar Room D (IGAP, Trieste)

Poster

Speakers

Alba Grassi (CERN and Université de Genève) Daniele Mauri Massimo Bianchi Massimo Bianchi (Universita degli Studi di Roma Tor Vergata)

Description

Although linear perturbations of black hole solutions have been studied in great detail, much less is known about quadratic fluctuations. In this work, we take a step forward in this direction by first analyzing simple toy models — the Inverted Hydrogen Atom in four-dimensional Minkowski spacetime and pure AdS — where we construct closed-form solutions for quadratic perturbations. We then turn to the gravity–scalar sector of an N=2,D=4 supergravity Lagrangian, deriving linear and quadratic quasi-normal mode solutions perturbatively in the black hole mass.