Algorithmic Dualization of Unitary Circular Quivers

Riccardo Comi; Chiung Hwang; Fabio Marino

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arXiv · 2607.01327

Algorithmic Dualization of Unitary Circular Quivers

Riccardo Comi·Chiung Hwang·Fabio Marino

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Abstract

We introduce a field-theoretic algorithm to find the $SL(2,\mathbb{Z})$ duality web of 3d $\mathcal{N}=4$ circular quiver theories with unitary gauge groups, extending the algorithm for linear quivers. Although circular and linear quivers share the same local structure, the circular topology requires additional ingredients, which we formulate in terms of topological and baryonic QFT blocks, together with new $SL(2,\mathbb{Z})$ duality moves acting on them. For good circular quivers, this provides a field-theoretic derivation of mirror symmetry and extends it to the full $SL(2,\mathbb{Z})$ duality web. We then study bad circular quivers, distinguishing between local badness, associated with under-balanced gauge nodes, and global badness, arising from the circular topology itself. In particular, we analyze the magnetic and electric dual frames of globally bad circular quivers and provide additional evidence for the proposed duality by matching the Higgs branch index with the dual Coulomb branch index. The latter exhibits a structure reminiscent of permutation-group gauging and reveals a refined relation to the ADHM quiver, flowing to the $\mathcal{N}=8$ infrared fixed point.

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Riccardo Comi, Chiung Hwang, Fabio Marino. 2026-07-01. Algorithmic Dualization of Unitary Circular Quivers. https://arxiv.org/abs/2607.01327

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