GQFI-UGent-WST Seminar: Kevin Nguyen "Holographic boundary actions in AdS3/CFT2 revisited"
Various kinds of boundary actions have appeared over the years in the context of pure AdS3 gravity. One of them is the generating functional of stress tensor correlation functions of a dual holographic CFT. Others, obtained by Hamiltonian reduction of pure gravity in its Chern-Simons formulation, describe the dynamics of the only dynamical degrees of freedom residing at the conformal boundary. In this talk, Kevin Nguyen (KCL) reviews these various actions and emphasizes their differences. Kevin further discusses the role they play in the recent proposal that pure AdS3 gravity is dual to a random matrix ensemble.
The Virtual Seminar Series “GQFI-Ghent University-Warsaw String Theory” (GQFI-UGent-WST) is a joint initiative between the strings/holography groups at the Albert Einstein Institute (AEI) in Potsdam, Ghent University and the University Warsaw. The calendar for upcoming GQFI-UGent-WST seminars can be found here: https://gqfi.aei.mpg.de/node/3.
This talk is primarily based on arXiv:2108.01095 [hep-th] (https://arxiv.org/abs/2108.01095).
This talk was recorded on September 28th, 2021 at the Albert Einstein Institute in Potsdam-Golm.