Speaker
Mathew Bullimore
(Oxford)
Description
In three-dimensional gauge theories, monopole operators create and destroy vortices. I will explore this idea in the context of three-dimensional gauge theories with N=4 supersymmetry in the presence of an omega background. This leads to a finite version of the AGT correspondence, involving an action of the quantized Coulomb branch on the equivariant cohomology of vortex moduli spaces. (Work with T.Dimofte, D.Gaiotto, J.Hilburn, & H-C.Kim)
