Speaker
Description
One of the main motivations for developing a quantum theory of gravity is to resolve classical singularities. In many cosmological models, various quantum gravity theories have successfully replaced the Big Bang singularity with a "big bounce". However, black hole spacetimes have historically received less attention. In this talk, we focus on the Wheeler–DeWitt quantisation of one of the simplest black hole models: the planar AdS black hole.
I will begin by comparing the quantisation of the AdS black hole spacetime to the flat FLRW universe with a free massless scalar field. Following this, I will show how both the black hole singularity and the horizon coordinate singularity are resolved in the quantum theory, emphasising the role played by unitarity. Finally, I will discuss future research directions in this field. This talk is based on a WIP soon to appear on arXiv.
