Refined Invariants and Quantum Curves from Supersymmetric Localization

Fuente: arXiv
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Autores principales: Banerjee, Sibasish, Ishtiaque, Nafiz, Jeong, Saebyeok
Formato: Preprint
Publicado: 2026
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author Banerjee, Sibasish
Ishtiaque, Nafiz
Jeong, Saebyeok
author_facet Banerjee, Sibasish
Ishtiaque, Nafiz
Jeong, Saebyeok
contents We study an Aganagic-Vafa brane supported on a special Lagrangian submanifold $\mathcal{L}$ in a non-compact toric Calabi-Yau threefold $\mathcal{X}$. From the perspective of geometric engineering, the Aganagic-Vafa branes give rise to a special class of half-BPS codimension-two defects in 5d $\mathcal{N}=1$ supersymmetric field theories in the presence of $Ω$-background. We propose that the defect partition functions give generating functions of refined, non-negative, integral open BPS invariants of the pair $(\mathcal{X},\mathcal{L})$, across different Kähler moduli chambers they are expanded in. In the Nekrasov-Shatashvili limit, the partition function provides a partially resummed solution to a $q$-difference equation that quantizes the mirror curve of $\mathcal{X}$ in an unambiguous fashion, in a polarization determined by the discrete labels of the Aganagic-Vafa brane. We demonstrate our method at examples of $\mathbb{C}^3$, resolved conifold, resolved $A_1$-singularity, local $F_0$, and local $F_1$.
format Preprint
id arxiv_https___arxiv_org_abs_2601_07662
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Refined Invariants and Quantum Curves from Supersymmetric Localization
Banerjee, Sibasish
Ishtiaque, Nafiz
Jeong, Saebyeok
High Energy Physics - Theory
Mathematical Physics
Algebraic Geometry
81T30, 81R12
We study an Aganagic-Vafa brane supported on a special Lagrangian submanifold $\mathcal{L}$ in a non-compact toric Calabi-Yau threefold $\mathcal{X}$. From the perspective of geometric engineering, the Aganagic-Vafa branes give rise to a special class of half-BPS codimension-two defects in 5d $\mathcal{N}=1$ supersymmetric field theories in the presence of $Ω$-background. We propose that the defect partition functions give generating functions of refined, non-negative, integral open BPS invariants of the pair $(\mathcal{X},\mathcal{L})$, across different Kähler moduli chambers they are expanded in. In the Nekrasov-Shatashvili limit, the partition function provides a partially resummed solution to a $q$-difference equation that quantizes the mirror curve of $\mathcal{X}$ in an unambiguous fashion, in a polarization determined by the discrete labels of the Aganagic-Vafa brane. We demonstrate our method at examples of $\mathbb{C}^3$, resolved conifold, resolved $A_1$-singularity, local $F_0$, and local $F_1$.
title Refined Invariants and Quantum Curves from Supersymmetric Localization
topic High Energy Physics - Theory
Mathematical Physics
Algebraic Geometry
81T30, 81R12
url https://arxiv.org/abs/2601.07662