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arXiv · 1612.04839

Intersecting Surface Defects and Instanton Partition Functions

Yiwen Pan·Wolfger Peelaers
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Abstract

We analyze intersecting surface defects inserted in interacting four-dimensional N = 2 supersymmetric quantum field theories. We employ the realization of a class of such systems as the infrared fixed points of renormalization group flows from larger theories, triggered by perturbed Seiberg-Witten monopole-like configurations, to compute their partition functions. These results are cast into the form of a partition function of 4d/2d/0d coupled systems. Our computations provide concrete expressions for the instanton partition function in the presence of intersecting defects and we study the corresponding ADHM model.

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Yiwen Pan, Wolfger Peelaers. 2017-05-01. Intersecting Surface Defects and Instanton Partition Functions. https://doi.org/10.1007/jhep07(2017)073

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