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Autori principali: Caldararu, A., Pantev, T., Sharpe, E., Sung, B., Yu, X.
Natura: Preprint
Pubblicazione: 2025
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Accesso online:https://arxiv.org/abs/2504.02023
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author Caldararu, A.
Pantev, T.
Sharpe, E.
Sung, B.
Yu, X.
author_facet Caldararu, A.
Pantev, T.
Sharpe, E.
Sung, B.
Yu, X.
contents In this paper we explore noninvertible symmetries in general (not necessarily rational) SCFTs and their topological B-twists for Calabi-Yau manifolds. We begin with a detailed overview of defects in the topological B model. For trivial reasons, all defects in the topological B model are topological operators, and define (often noninvertible) symmetries of that topological field theory, but only a subset remain topological in the physical (i.e., untwisted) theory. For a general target space Calabi-Yau X, we discuss geometric realizations of those defects, as simultaneously A- and B-twistable complex Lagrangian and complex coisotropic branes on X \times X, and discuss their fusion products. To be clear, the possible noninvertible symmetries in the B model are more general than can be described with fusion categories. That said, we do describe realizations of some Tambara-Yamagami categories in the B model for an elliptic curve target, and also argue that elliptic curves can not admit Fibonacci or Haagerup structures. We also discuss how decomposition is realized in this language.
format Preprint
id arxiv_https___arxiv_org_abs_2504_02023
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Noninvertible symmetries in the B model TFT
Caldararu, A.
Pantev, T.
Sharpe, E.
Sung, B.
Yu, X.
High Energy Physics - Theory
In this paper we explore noninvertible symmetries in general (not necessarily rational) SCFTs and their topological B-twists for Calabi-Yau manifolds. We begin with a detailed overview of defects in the topological B model. For trivial reasons, all defects in the topological B model are topological operators, and define (often noninvertible) symmetries of that topological field theory, but only a subset remain topological in the physical (i.e., untwisted) theory. For a general target space Calabi-Yau X, we discuss geometric realizations of those defects, as simultaneously A- and B-twistable complex Lagrangian and complex coisotropic branes on X \times X, and discuss their fusion products. To be clear, the possible noninvertible symmetries in the B model are more general than can be described with fusion categories. That said, we do describe realizations of some Tambara-Yamagami categories in the B model for an elliptic curve target, and also argue that elliptic curves can not admit Fibonacci or Haagerup structures. We also discuss how decomposition is realized in this language.
title Noninvertible symmetries in the B model TFT
topic High Energy Physics - Theory
url https://arxiv.org/abs/2504.02023