Bridging high and low energies in search of quantum gravity - 2025 Cost Action CA23130 First Annual Conference

The regularization of spacetime singularities

9 Jul 2025, 11:20

20m

Amphithéâtre Charpak (LPNHE)

Oral contribution WG1 High Energy QG Theory 3

Speaker

Vania Vellucci (University of Southern Denmark)

Description

Spacetime singularities are often regarded as evidence of the fundamental incompleteness of General Relativity (GR). It is generally expected that a quantum theory of gravity will prevent their formation. In this talk, I will explore various proposed 'regular' geometrical structures that could effectively replace classical singularities as the end states of gravitational collapse. I will discuss their physical viability, (in)stability, and the possibility for distinguishing from singular GR black holes through gravitational wave observations