# Resurgence and non-perturbative topological strings

- Institution: CERN
- Department: Conferences, Workshops & Schools
- Speaker: Marcos Marino Beiras
- Year: 2024
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3011455)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

The string perturbative series diverges factorially, and it is expected that this behavior is related to the existence of non-perturbative effects due to D-branes. Although these ideas can be made precise in the case of non-critical strings, little is known in other situations. In this talk I summarize recent work showing that, in the case of topological strings on Calabi-Yau manifolds, one can use the theory of resurgence to describe its non-perturbative sectors. The main outcome is that the large order behavior of the genus expansion in topological string theory knows secretly about the spectrum of BPS D-branes on the Calabi-Yau, and non-perturbative amplitudes can be explicitly computed..

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## Lectures

1. [Resurgence and non-perturbative topological strings](https://invisiblenetwork.ai/learn/cern/3011455/78483a834dc5), 32 min (CERN's player)