Adventures in the land of observational black hole spectroscopy: fundamental physics investigations
Seminar
|
During the last five years, black hole perturbations have unquestionably transitioned from a mathematical problem to an observational reality. Routinely detected in the massive branch of the LIGO-Virgo black holes population, the ringdown emission process drives the relaxation to equilibrium of black holes whose birth is witnessed at the end of a binary black hole coalescence. After introducing the physical picture of the emission process, I will discuss how the analysis of gravitational-wave ringdown signals, detected by the LIGO-Virgo network, can help testing fundamental laws of physics. Results include competitive constraints on the coupling constants of alternative theories of gravity, quantifications of potential observational signatures stemming from the black hole area quantisation, verification of black hole information emission limits and a search for Einstein-Maxwell U(1) charges induced by a dark photon. Join Zoom Meeting https://cern.zoom.us/j/63790314153?pwd=THBScXJzQVhOaVQvT29EeDAwZjZ5UT09 Meeting ID: 637 9031 4153 Passcode: 253644 |