Surface defects and instanton–vortex interaction
We propose a simple formula for the 4d–2d partition function of half-BPS surface defects in d=4, N=2 gauge theories: Z4d–2d=〈Z2d〉4d. Our results are applicable for any surface defect obtained by gauging a 2d flavor symmetry using a 4d gauge group. For defects obtained via the Higgsing procedure, our...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2017-07-01
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| Series: | Nuclear Physics B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0550321317301396 |