Drinfel’d double symmetry of the 4d Kitaev model

Abstract Following the general theory of categorified quantum groups developed by the author previously, we construct the Drinfel’d double 2-bialgebra associated to a finite group N = G 0. For N = ℤ 2, we explicitly compute the braided 2-categories of 2-representations of certain version of this Dri...

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Main Author: Hank Chen
Format: Article
Language:English
Published: SpringerOpen 2023-09-01
Series:Journal of High Energy Physics
Subjects:
Online Access:https://doi.org/10.1007/JHEP09(2023)141
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author Hank Chen
author_facet Hank Chen
author_sort Hank Chen
collection DOAJ
description Abstract Following the general theory of categorified quantum groups developed by the author previously, we construct the Drinfel’d double 2-bialgebra associated to a finite group N = G 0. For N = ℤ 2, we explicitly compute the braided 2-categories of 2-representations of certain version of this Drinfel’d double 2-bialgebra, and prove that they characterize precisely the 4d toric code and its spin-ℤ 2 variant. This result relates the two descriptions (categorical vs. field theoretical) of 4d gapped topological phases in existing literature and displays an instance of higher Tannakian duality for braided 2-categories. In particular, we show that particular twists of the underlying Drinfel’d double 2-bialgebra is responsible for much of the higher-structural properties that arise in 4d topological orders.
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spelling doaj.art-d466f40159e340218c32e1363ca37e7f2023-12-31T12:07:11ZengSpringerOpenJournal of High Energy Physics1029-84792023-09-012023915410.1007/JHEP09(2023)141Drinfel’d double symmetry of the 4d Kitaev modelHank Chen0Department of Applied Mathematics, University of WaterlooAbstract Following the general theory of categorified quantum groups developed by the author previously, we construct the Drinfel’d double 2-bialgebra associated to a finite group N = G 0. For N = ℤ 2, we explicitly compute the braided 2-categories of 2-representations of certain version of this Drinfel’d double 2-bialgebra, and prove that they characterize precisely the 4d toric code and its spin-ℤ 2 variant. This result relates the two descriptions (categorical vs. field theoretical) of 4d gapped topological phases in existing literature and displays an instance of higher Tannakian duality for braided 2-categories. In particular, we show that particular twists of the underlying Drinfel’d double 2-bialgebra is responsible for much of the higher-structural properties that arise in 4d topological orders.https://doi.org/10.1007/JHEP09(2023)141Discrete SymmetriesQuantum GroupsSigma ModelsTopological States of Matter
spellingShingle Hank Chen
Drinfel’d double symmetry of the 4d Kitaev model
Journal of High Energy Physics
Discrete Symmetries
Quantum Groups
Sigma Models
Topological States of Matter
title Drinfel’d double symmetry of the 4d Kitaev model
title_full Drinfel’d double symmetry of the 4d Kitaev model
title_fullStr Drinfel’d double symmetry of the 4d Kitaev model
title_full_unstemmed Drinfel’d double symmetry of the 4d Kitaev model
title_short Drinfel’d double symmetry of the 4d Kitaev model
title_sort drinfel d double symmetry of the 4d kitaev model
topic Discrete Symmetries
Quantum Groups
Sigma Models
Topological States of Matter
url https://doi.org/10.1007/JHEP09(2023)141
work_keys_str_mv AT hankchen drinfelddoublesymmetryofthe4dkitaevmodel