Superconformal Indices of 3d $\mathcal{N}=2$ SCFTs and Holography

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Main Authors: Bobev, Nikolay, Choi, Sunjin, Hong, Junho, Reys, Valentin
Format: Preprint
Published: 2024
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author Bobev, Nikolay
Choi, Sunjin
Hong, Junho
Reys, Valentin
author_facet Bobev, Nikolay
Choi, Sunjin
Hong, Junho
Reys, Valentin
contents We study the superconformal index of 3d $\mathcal{N}=2$ superconformal field theories on $S^1\times_ω S^2$ in the Cardy-like limit where the radius of the $S^1$ is much smaller than that of the $S^2$. We show that the first two leading terms in this Cardy-like expansion are dictated by the Bethe Ansatz formulation of the topologically twisted index of the same theory. We apply this relation to 3d $\mathcal{N}=2$ holographic superconformal field theories describing the low-energy dynamics of $N$ M2-branes and derive closed form expressions, valid to all orders in the $1/N$ expansion, for the two leading terms in the Cardy-like expansion of the superconformal index. We also discuss the implications of our results for the entropy of supersymmetric Kerr-Newman black holes in AdS$_4$ and the four-derivative corrections to 4d gauged supergravity.
format Preprint
id arxiv_https___arxiv_org_abs_2407_13177
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Superconformal Indices of 3d $\mathcal{N}=2$ SCFTs and Holography
Bobev, Nikolay
Choi, Sunjin
Hong, Junho
Reys, Valentin
High Energy Physics - Theory
We study the superconformal index of 3d $\mathcal{N}=2$ superconformal field theories on $S^1\times_ω S^2$ in the Cardy-like limit where the radius of the $S^1$ is much smaller than that of the $S^2$. We show that the first two leading terms in this Cardy-like expansion are dictated by the Bethe Ansatz formulation of the topologically twisted index of the same theory. We apply this relation to 3d $\mathcal{N}=2$ holographic superconformal field theories describing the low-energy dynamics of $N$ M2-branes and derive closed form expressions, valid to all orders in the $1/N$ expansion, for the two leading terms in the Cardy-like expansion of the superconformal index. We also discuss the implications of our results for the entropy of supersymmetric Kerr-Newman black holes in AdS$_4$ and the four-derivative corrections to 4d gauged supergravity.
title Superconformal Indices of 3d $\mathcal{N}=2$ SCFTs and Holography
topic High Energy Physics - Theory
url https://arxiv.org/abs/2407.13177