Exact large $N$ expansion of $\mathcal{N}=4$ circular quiver Chern-Simons theories and squashing

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Auteurs principaux: Kubo, Naotaka, Nosaka, Tomoki, Pang, Yi
Format: Preprint
Publié: 2025
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author Kubo, Naotaka
Nosaka, Tomoki
Pang, Yi
author_facet Kubo, Naotaka
Nosaka, Tomoki
Pang, Yi
contents In this work, we revisit the exact computation of the round sphere partition function of 3d $\mathcal{N}=4$ circular quiver Chern-Simons theories with mass and Fayet-Iliopoulos (FI) deformations. Utilizing the Fermi gas formalism, we derive the large $N$ expansion of the partition function and determine the Airy function structure, parameterized by three functions $C$, $B$ and $A$. We propose a novel closed-form expression for $A$ that incorporates the effects of FI parameters and satisfies various consistency constraints from quiver reductions. As an application, by using an accidental coincidence of the Fermi gas density matrices we extend our results to the squashed sphere partition function of $\mathcal{N}=4$ super Yang-Mills theories with an adjoint hypermultiplet and multiple fundamental hypermultiplets. Our findings provide further evidence for the universality of the Airy function structure in supersymmetric gauge theories of multiple M2-branes.
format Preprint
id arxiv_https___arxiv_org_abs_2504_04402
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Exact large $N$ expansion of $\mathcal{N}=4$ circular quiver Chern-Simons theories and squashing
Kubo, Naotaka
Nosaka, Tomoki
Pang, Yi
High Energy Physics - Theory
In this work, we revisit the exact computation of the round sphere partition function of 3d $\mathcal{N}=4$ circular quiver Chern-Simons theories with mass and Fayet-Iliopoulos (FI) deformations. Utilizing the Fermi gas formalism, we derive the large $N$ expansion of the partition function and determine the Airy function structure, parameterized by three functions $C$, $B$ and $A$. We propose a novel closed-form expression for $A$ that incorporates the effects of FI parameters and satisfies various consistency constraints from quiver reductions. As an application, by using an accidental coincidence of the Fermi gas density matrices we extend our results to the squashed sphere partition function of $\mathcal{N}=4$ super Yang-Mills theories with an adjoint hypermultiplet and multiple fundamental hypermultiplets. Our findings provide further evidence for the universality of the Airy function structure in supersymmetric gauge theories of multiple M2-branes.
title Exact large $N$ expansion of $\mathcal{N}=4$ circular quiver Chern-Simons theories and squashing
topic High Energy Physics - Theory
url https://arxiv.org/abs/2504.04402