Speaker: Dr. Etera Livine
Title: Black Hole Entropy, Entanglement, and Area Renormalisation in LQG
Abstract: One can model a LQG black hole at the kinematical level as a space region bounded by a closed surface -the horizon- whose geometry an external observer can acquire information about only through measurements on the surface. The black hole state is then given by completely coarse-graining the geometry of the bounded region, which defines a density matrix on the space of intertwiners i.e. the quantum state of the boundary horizon. I'll explain how to derive the black hole entropy law in that context and how to explain the logarithmic correction in terms of entanglement/correlation between parts of the horizon. This will lead to introduce a concept of surface renormalisationin LQG.
Talk: Transparencies, Recorded Talk