Gravitational multipoles beyond, Bogdan Ganchev (Saclay University)

Ottobre 6, 2022@11:00 am–12:00 pm
602 e online

(Seminario di Fisica Teorica)
In this talk I consider gravitational mulipoles in 4D theories beyond pure Einstein gravity. For the Kerr black hole, the mutlipole moments are uniquely determined by the first mass and current multipoles, but this is not necessarily true beyond classical gravity, in string theory for example. We will look at the effects of higher-derivative corrections to the Kerr mutlipoles from an EFT point of view and discuss their viability as probes of corrections to the Kerr black hole. We will also discuss whether the richer structure of multipole moments in string theory, as compared to that of the Kerr black hole, can be used to pose constraints on corrections to General Relativity coming from string theory.

Per connettersi a zoom

Topic: Theory and Pheno seminars
Meeting ID: 857 318 5271