Minimal $(D,D)$ conformal matter and generalizations of the van Diejen model

Abstract

We consider supersymmetric surface defects in compactifications of the $6d$ minimal $(D_{N+3},D_{N+3})$ conformal matter theories on a punctured Riemann surface. For the case of $N=1$ such defects are introduced into the supersymmetric index computations by an action of the $B{C}_1(\sim A_1\sim C_1)$ van Diejen model. We (re)derive this fact using three different field theoretic descriptions of the four dimensional models. The three field theoretic descriptions are naturally associated with algebras $A_{N=1}$, $C_{N=1}$, and $(A_1{)}^{N=1}$. The indices of these $4d$ theories give rise to three different Kernel functions for the $B{C}_1$ van Diejen model. We then consider the generalizations with $N>1$. The operators introducing defects into the index computations are certain $A_N$, $C_N$, and $(A_1{)}^N$ generalizations of the van Diejen model. The three different generalizations are directly related to three different effective gauge theory descriptions one can obtain by compactifying the minimal $(D_{N+3},D_{N+3})$ conformal matter theories on a circle to five dimensions. We explicitly compute the operators for the $A_N$ case, and derive various properties these operators have to satisfy as a consequence of $4d$ dualities following from the geometric setup. In some cases we are able to verify these properties which in turn serve as checks of said dualities. As a by-product of our constructions we also discuss a simple Lagrangian description of a theory corresponding to compactification on a sphere with three maximal punctures of the minimal $(D_5,D_5)$ conformal matter and as consequence give explicit Lagrangian constructions of compactifications of this 6d SCFT on arbitrary Riemann surfaces.

42 pages + Appendices, 23 Figures, minor typos corrected

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Cited by in corpus (8)

• 6d SCFTs, Center-Flavor Symmetries, and Stiefel--Whitney Compactifications
• Elliptic Quantum Curves of 6d SO(N) theories
• Star shaped quivers in four dimensions
• $C_2$ generalization of the van Diejen model from the minimal $(D_5,D_5)$ conformal matter
• Ground state wavefunctions of elliptic relativistic integrable Hamiltonians
• $\mathcal{N}=1$ Curves on Generalized Coulomb Branches
• D-type Minimal Conformal Matter: Quantum Curves, Elliptic Garnier Systems, and the 5d Descendants
• Aspects of 4d supersymmetric dynamics and geometry