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ADE spectral networks and decoupling limits of surface defects
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Theoretical Physics.
Rutgers State Univ, NHETC, New Brunswick, NJ USA.;Rutgers State Univ, Dept Phys & Astron, New Brunswick, NJ USA..
2017 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, no 2, article id 011Article in journal (Refereed) Published
Abstract [en]

We study vacua and BPS spectra of canonical surface defects of class S theories in different decoupling limits using ADE spectral networks. In some regions of the IR moduli spaces of these 2d-4d systems, the mixing between 2d and 4d BPS states is suppressed, and the spectrum of 2d-4d BPS states becomes that of a 2d N = (2; 2) theory. For some decoupling limits, we identify the 2d theories describing the surface defects with nonlinear sigma models and coset models that have been previously studied. We also study certain cases where the decoupling limit of a surface defect exhibits a set of vacua and a BPS spectrum that appear to be entirely new. A detailed analysis of these spectra and their wall-crossing behavior is performed.

Place, publisher, year, edition, pages
SPRINGER , 2017. no 2, article id 011
Keywords [en]
Extended Supersymmetry, Field Theories in Lower Dimensions, Supersymmetric gauge theory
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Identifiers
URN: urn:nbn:se:uu:diva-319100DOI: 10.1007/JHEP02(2017)011ISI: 000394215400001OAI: oai:DiVA.org:uu-319100DiVA, id: diva2:1086684
Available from: 2017-04-03 Created: 2017-04-03 Last updated: 2017-11-29Bibliographically approved

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