One-loop partition functions encode the leading-order quantum corrections to the gravitational path integral and can be constructed from quasinormal modes. We investigate how exact computations of these quantities can be extended beyond highly symmetric backgrounds. Trace formulas provide a powerful framework connecting spectral data of differential operators to geometric data of the...
Primordial black holes (PBHs) provide a unique window into the physics of the early Universe and offer an important avenue for probing gravity beyond General Relativity. In this talk, I will discuss the formation and properties of primordial black holes in the framework of Einstein–Dilaton–Gauss–Bonnet (EdGB) gravity, where a scalar dilaton field is non-minimally coupled to the Gauss–Bonnet...