Gauge Theory

Thursday, November 15, 2018 - 1:30pm - 2:30pm
Edward Frenkel (University of California, Berkeley)
Electromagnetic duality (also known as S-duality), discovered by physicists in the 1980s, is a conjectural equivalence between 4d supersymmetric quantum gauge theories associated to two compact Lie groups that are Langlands dual to each other. Starting with the pioneering work by Kapustin and Witten, a great effort has been made in the past dozen years to find connections between the electromagnetic duality and the geometric Langlands correspondence, as well as its one-parameter deformation that naturally appears in this context.
Wednesday, October 30, 2013 - 2:00pm - 2:50pm
Melvin Leok (University of California)
Many gauge field theories can be described using a multisymplectic Lagrangian formulation, where the Lagrangian density involves space-time differential forms. While there has been much work on finite-element exterior calculus for spatial and tensor product space-time domains, there has been less done from the perspective of space-time simplicial complexes.
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