Monodromy of Calabi-Yau threefold flops via grade restriction rule and their quantum Kahler moduli

Fuente: arXiv
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Main Authors: Lin, Ban, Romo, Mauricio
Format: Preprint
Published: 2026
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author Lin, Ban
Romo, Mauricio
author_facet Lin, Ban
Romo, Mauricio
contents We present exact expressions, based on the grade restriction rule and window categories, for monodromies associated to certain Calabi-Yau threefold flops. We show a general formula for the monodromy action on the lattice of B-brane charges, based on the hemisphere partition function for abelian and nonabelian gauged linear sigma models. We exploit the explicit form of the discriminant in the quantum Kähler moduli to further refine the form of the monodromies, in several examples, using their relation to the fundamental group of nested torus links.
format Preprint
id arxiv_https___arxiv_org_abs_2605_18514
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Monodromy of Calabi-Yau threefold flops via grade restriction rule and their quantum Kahler moduli
Lin, Ban
Romo, Mauricio
High Energy Physics - Theory
Algebraic Geometry
We present exact expressions, based on the grade restriction rule and window categories, for monodromies associated to certain Calabi-Yau threefold flops. We show a general formula for the monodromy action on the lattice of B-brane charges, based on the hemisphere partition function for abelian and nonabelian gauged linear sigma models. We exploit the explicit form of the discriminant in the quantum Kähler moduli to further refine the form of the monodromies, in several examples, using their relation to the fundamental group of nested torus links.
title Monodromy of Calabi-Yau threefold flops via grade restriction rule and their quantum Kahler moduli
topic High Energy Physics - Theory
Algebraic Geometry
url https://arxiv.org/abs/2605.18514