Friday, April 30, 2021
11:00 AM -
12:00 PM
Online Event
High Energy Theory Seminar
Towards Lefschetz thimbles in sigma models
Nikita Nekrasov,
SCGP,
I report on the progress in classifying the path integral contours for the two dimensional sigma models with O(N) and U(N) symmetry. We introduce a novel type of an auxiliary curve similar to the Seiberg-Witten curves of four dimensional supersymmetric gauge theories. Based on a joint work with Igor Krichever.
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