Quiver Theories and Hilbert Series of Classical Slodowy Intersections

Abstract

We build on previous studies of the Higgs and Coulomb branches of SUSY quiver theories having 8 supercharges, including $3d\mathcal{N}=4$, and Classical gauge groups. The vacuum moduli spaces of many such theories can be parameterised by pairs of nilpotent orbits of Classical Lie algebras; they are transverse to one orbit and intersect the closure of the second. We refer to these transverse spaces as Slodowy intersections. They embrace reduced single instanton moduli spaces, nilpotent orbits, Kraft-Procesi transitions and Slodowy slices, as well as other types. We show how quiver subtractions, between multi-flavoured unitary or ortho-symplectic quivers, can be used to find a complete set of Higgs branch constructions for the Slodowy intersections of any Classical group. We discuss the relationships between the Higgs and Coulomb branches of these quivers and $T_{\sigma }^{\rho }$ theories in the context of $3d$ mirror symmetry, including problematic aspects of Coulomb branch constructions from ortho-symplectic quivers. We review Coulomb and Higgs branch constructions for a subset of Slodowy intersections from multi-flavoured Dynkin diagram quivers. We tabulate Hilbert series and Highest Weight Generating functions for Slodowy intersections of Classical algebras up to rank 4. The results are confirmed by direct calculation of Hilbert series from a localisation formula for normal Slodowy intersections that is related to the Hall Littlewood polynomials.

arXiv comment64 pages, 19 figures

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• Quiver origami: discrete gauging and folding
• Instanton Counting, Quantum Geometry and Algebra
• Quotient Quiver Subtraction
• Branes, Quivers, and the Affine Grassmannian
• Atomic Higgsings of 6D SCFTs
• Crystal bases and three-dimensional $\mathcal{N}=4$ Coulomb branches
• Quiver Polymerisation
• $K$-theoretic Coulomb branches of quiver gauge theories and cluster varieties