25 citations · 52 across the 5 of their papers we have counts for
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hep-th2010★ 6 cited
Geometry of Topological Defects of Two-dimensional Sigma Models
Anton Kapustin, Kevin Setter
A topological defect separating a pair of two-dimensional CFTs is a codimension one interface along which all components of the stress-energy tensor glue continuously. We study top…
hep-th2010★ 8 cited
Surface operators in four-dimensional topological gauge theory and Langlands duality
Anton Kapustin, Kevin Setter, Ketan Vyas
We study surface and line operators in the GL-twisted N=4 gauge theory in four dimensions. Their properties depend on the parameter t which determines the BRST operator of theory.…