PIRSA ID: 22110111
Series:
Event Type: Seminar
Scientific Area(s): Quantum Gravity
End date: 2022-11-24
Speaker(s): Dominik Neuenfeld Dominik Neuenfeld University of Amsterdam
I will discuss information theoretic properties of planar black hole microstates in 2 + 1 dimensional asymptotically anti-de Sitter spacetime, modeled by black holes with an end-of-the-world brane behind the horizon. The von Neumann entropy of sufficiently large subregions in the dual CFT exhibits a time-dependent phase, which from a doubly-holographic perspective corresponds to the appearance of quantum extremal islands in the brane description. Considering the case where dilaton gravity is added to the brane, we show that tuning the associated couplings affects the propagation of information in the dual CFT state. By requiring that information theoretic bounds on the growth of entanglement entropy are satisfied in the dual CFT, we can place bounds on the allowed values of the couplings on the brane.
Zoom link: https://pitp.zoom.us/j/