Localization of a supersymmetric gauge theory in the presence of a surface defect

الأصل · EN

We use supersymmetric localization to compute the partition function of N=2 super-Yang-Mills on S⁴ in the presence of a gauged linear sigma model surface defect on a S² subspace. The result takes the form of a standard partition function on S⁴, with a modified instanton partition function and an additional insertion corresponding to a shifted version of the gauged linear sigma model partition function.