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Paolo Gregori (Instituto Superior Técnico, Lisboa)
Thursday 15 September 2022, 14:30-15:30
Resurgent ZZ and FZZT branes in minimal strings and JT gravity
- 👤 Speaker: Paolo Gregori (Instituto Superior Técnico, Lisboa)
- 📅 Date & Time: Thursday 15 September 2022, 14:30 - 15:30
- 📍 Venue: No Room Required
Abstract
A wide class of two-dimensional gravitational models, including (2,p) minimal strings and Jackiw-Teitelboim gravity, are described by certain double-scaled matrix models. This allows for the study of non-perturbative effects in such theories, via instanton calculus in the corresponding matrix model dual. In matrix models, non-perturbative contributions to observables organize themselves in two distinct classes, associated to eigenvalue tunneling (corresponding to ZZ branes) and to determinant insertions (corresponding to FZZT ). We provide a recipe for systematically computing ZZ brane contributions in such models, using a non-perturbative formulation of the topological recursion. Also, we show how the competing ZZ and FZZT brane effects show up in the Borel plane and in the large genus asymptotics of several observables.
Series This talk is part of the Isaac Newton Institute Seminar Series series.
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