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Revisiting black-hole perturbation theory: the hyperboloidal slice approach

Jul. 15 - 14:30 - 2021

Speaker: Rodrigo Panosso Macedo (QMUL)

Title: Revisiting black-hole perturbation theory: the hyperboloidal slice approach

Abstract:
After reviewing the well-stablished notion of black-hole perturbation theory and the concept of quasinormal modes, I will discuss an alternative geometric framework to treat problems in the field: the hyperboloidal framework. In this context, I will summarise some results from the last past years in which the hyperboloidal framework has provided new tools to re-asses and expand on open questions in black-hole perturbation theory such as the spectral representation of solutions to relativistic wave equations and the stability of the quasinormal modes spectra. Not only do the results play an important role on our understanding of fundamental aspects of the theory, but also they have a potential high impact in gravitational waves astronomy and black-hole spectroscopy.

Room: ZOOM videoconference (contact justin.feng@tecnico.ulisboa.pt for URL)

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