Marcus Sperling (Yau Center, Tsinghua)

Slides: Magnetic-Quivers

Videos: Youtube, Bilibili

Zoom seminar: https://us02web.zoom.us/j/9383671691

Time: 4pm(Japan/Korea), 3pm(China), 12:30pm(India), 10am(Israel/Moscow), 9am(Berlin/Paris)

Higgs Branches, Magnetic-Quivers, and Hasse Diagrams

Abstract:
Magnetic quivers and Hasse diagrams have recently been developed to study gauge theories with 8  supercharges at UV fixed points. For a given low-energy gauge theory realised via a Type II brane construction, there exist magnetic quivers for the Higgs branches at finite and infinite gauge coupling.
Comparing these moduli spaces allows to study the non-perturbative effects when transitioning to the fixed point.  For 5d N=1 SQCD, 5-brane webs have been an important tool for deriving magnetic quivers.  In this talk, the emphasis is placed on 5-brane webs with orientifold 5-planes which give rise to 5d  theories with orthogonal or symplectic gauge groups.  For this set-up, I will exemplify the magnetic quiver prescription and contrast it against a unitary magnetic quiver description extracted from an O7 construction.  An important class of families considered are the orthogonal exceptional families, realised as infinite coupling Higgs branches of Sp(k) gauge theories with fundamental matter.  For both classes of magnetic quivers, I will discuss the associated Hasse diagrams for selected examples. Their agreement further validates the approach taken.