Lefschetz thimbles in sigma models
Nikita Nekrasov (Stony Brook U., New York, SCGP)
Abstract: Two dimensional sigma models describe (harmonic) maps of Riemann surfaces to Riemannian manifolds. I will present the motivations to study the complexification of this problem. I will present the novel approach, developed in my work with Igor Krichever, allowing to construct essentially all twisted complexified harmonic maps of two-torus to spheres and projective spaces.
HEP - theorymathematical physicsexactly solvable and integrable systems
Audience: researchers in the topic
London Integrability Journal Club
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| Organizers: | Andrea Cavaglià, Nikolay Gromov, Evgeny Sobko*, Bogdan Stefanski |
| *contact for this listing |