Speaker
Sam Wong
(CityU HK)
Description
Black hole Love numbers measure how a black hole deforms under external tidal fields, providing a window into the structure of spacetime, the dynamics of black holes, and the physics of gravitational waves. While linear analyses already suggest their vanishing, the role of non-linear effects has remained an open question. In this talk, I will explore the non-linear regime, presenting recent results that establish the vanishing of infinitely many non-linear Love numbers in the parity-even sector of general relativity, valid to all orders in perturbation theory. This striking result also unveals a hidden symmetry underlying black hole perturbations, offering new insights into the nature of black holes in general relativity.
Primary author
Sam Wong
(CityU HK)
