Speaker: David Pereñiguez (Madrid, IFT)
Title: Quasinormal modes of NUT-charged black branes in AdS/CFT
In the context of AdS/CFT, the quasinormal modes (QNM) of black holes in the bulk correspond to the poles of the Green’s functions of the dual finite-temperature QFT. In this talk I will show how 4d black hole perturbation theory in the Newman—Penrose formalism extends to planar black holes in AdS with NUT charge. Scalar, electromagnetic and gravitational modes come organised precisely as Landau levels, the NUT charge playing the role of a constant magnetic field. I will derive the boundary conditions at infinity that are relevant for holography, and conclude by presenting the associated QNM spectrum and discussing its main features.
Room: ZOOM videoconference (contact email@example.com for URL)