Speaker
Dmytro Volin
(Uppsala University / Nordita)
Description
Baxter $Q$-functions encoding conserved charges of an integrable model satisfy a variety of relations that are non-local in spectral parameter and have a beautiful geometric interpretation. To fix the model we should impose analytic properties on $Q$-functions and doing so consistently with the non-local geometric relations is a stringent requirement which can be used both for classification goals and as an efficient computation tool for the spectrum. In supersymmetric models where $Q$-functions feature branching points, this requirement allows to bootstrap quantum spectral curves of AdS/CFT type.