Speaker
Description
Regular black holes play a pivotal role in understanding effective dynamics arising from quantum gravity. In this talk, I will present a framework that maps cosmological effective dynamics onto spherically symmetric systems via Lemaitre-Tolman-Bondi (LTB) embeddings. This method allows for the reconstruction of the 1+1d effective dynamics and a 4D covariant scalar-tensor Lagrangian, derived directly from cosmological or spherically symmetric effective metrics. I will explain how this approach resolves ambiguities in interpreting quantum-gravity-inspired dynamics and clarify the relationship between cosmological and black hole solutions under symmetry reduction with examples. Finally, I will discuss its connections to canonical formulations of quantum gravity, particularly in the reconciling with covariant effective theories.
