GQFI-UGent-WST Seminar: Dalimil Mazáč "Bootstrapping Boundaries and Branes"
In this talk, Dalimil Mazáč (IAS) discusses bootstrap constraints on conformal boundary conditions in 2D CFTs. In particular, Dalimil explains how to derive bounds on the boundary entropy starting from the consistency of the annulus partition function. In the context of string theory, these imply a universal upper bound on the tension of stable D-branes. It turns out that our bounds are often saturated by interesting boundary conditions in rational CFTs. In some cases, the exact saturation can be proven using analytic functionals, which is closely related to the solution of the sphere packing problem in 8 and 24 dimensions. Our bounds at large central charge have potential implications for end-of-the-world branes in pure gravity on AdS_3. The talk will be based on https://arxiv.org/pdf/2112.00750.pdf, which is joint work with Scott Collier and Yifan Wang.
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 of 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:2112.00750 [hep-th] (https://arxiv.org/abs/2112.00750).
This talk was recorded on February 15th, 2022 at the Albert Einstein Institute in Potsdam-Golm.