We review and extend recent progress on the quantum description of near-extremal black holes in the language of effective quantum field theory. With black holes in Einstein-Maxwell theory as the main example, we derive the low energy description of the AdS(2) region from a spacetime point of view. We also give a concise formula for the symmetry breaking scale, we … Read More
Abstract: I will discuss recent work on a Hayden & Preskill like setup for both maximally chaotic and sub- maximally chaotic quantum field theories. We act on the vacuum with an operator in a Rindler like wedge R and transfer a small subregion I of R to the other wedge. The chaotic scrambling dynamics of the QFT Rindler time evolution reveals … Read More
Streaming link https://berkeley.zoom.us/j/370438207 Abstract: In 2016 Harlow taught us that we can understand the Ryu-Takayanagi formula as a feature of quantum error correction. This explained how we should think about both the entanglement wedge and the area term in the formula. However, his analysis only applied in the special case of small code subspaces, in which the entanglement wedge is the same … Read More