CFT Correlators for Cardy Bulk Fields via String-Net Models

We show that string-net models provide a novel geometric method to construct invariants of mapping class group actions. Concretely, we consider string-net models for a modular tensor category . We show that the datum of a specific commutative symmetric Frobenius algebra in the Drinfeld center () giv...

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Published in:Symmetry, Integrability and Geometry: Methods and Applications
Date:2021
Main Authors: Schweigert, Christoph, Yang, Yang
Format: Article
Language:English
Published: Інститут математики НАН України 2021
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/211309
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:CFT Correlators for Cardy Bulk Fields via String-Net Models. Christoph Schweigert and Yang Yang. SIGMA 17 (2021), 040, 22 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Schweigert, Christoph
Yang, Yang
author_facet Schweigert, Christoph
Yang, Yang
citation_txt CFT Correlators for Cardy Bulk Fields via String-Net Models. Christoph Schweigert and Yang Yang. SIGMA 17 (2021), 040, 22 pages
collection DSpace DC
container_title Symmetry, Integrability and Geometry: Methods and Applications
description We show that string-net models provide a novel geometric method to construct invariants of mapping class group actions. Concretely, we consider string-net models for a modular tensor category . We show that the datum of a specific commutative symmetric Frobenius algebra in the Drinfeld center () gives rise to invariant string-nets. The Frobenius algebra has the interpretation of the algebra of bulk fields of the conformal field theory in the Cardy case.
first_indexed 2026-03-13T16:53:03Z
format Article
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id nasplib_isofts_kiev_ua-123456789-211309
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
issn 1815-0659
language English
last_indexed 2026-03-13T16:53:03Z
publishDate 2021
publisher Інститут математики НАН України
record_format dspace
spelling Schweigert, Christoph
Yang, Yang
2025-12-29T11:08:16Z
2021
CFT Correlators for Cardy Bulk Fields via String-Net Models. Christoph Schweigert and Yang Yang. SIGMA 17 (2021), 040, 22 pages
1815-0659
2020 Mathematics Subject Classification: 81T40
arXiv:1911.10147
https://nasplib.isofts.kiev.ua/handle/123456789/211309
https://doi.org/10.3842/SIGMA.2021.040
We show that string-net models provide a novel geometric method to construct invariants of mapping class group actions. Concretely, we consider string-net models for a modular tensor category . We show that the datum of a specific commutative symmetric Frobenius algebra in the Drinfeld center () gives rise to invariant string-nets. The Frobenius algebra has the interpretation of the algebra of bulk fields of the conformal field theory in the Cardy case.
We thank Alain Bruguieres, Jurgen Fuchs, Eilind Karlsson, and Vincentas Mulevicius for helpful discussions. The authors are partially supported by the RTG 1670 Mathematics inspired by String theory and Quantum Field Theory and by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germanys Excellence Strategy EXC 2121 Quantum Universe-QT.2.
en
Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
CFT Correlators for Cardy Bulk Fields via String-Net Models
Article
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spellingShingle CFT Correlators for Cardy Bulk Fields via String-Net Models
Schweigert, Christoph
Yang, Yang
title CFT Correlators for Cardy Bulk Fields via String-Net Models
title_full CFT Correlators for Cardy Bulk Fields via String-Net Models
title_fullStr CFT Correlators for Cardy Bulk Fields via String-Net Models
title_full_unstemmed CFT Correlators for Cardy Bulk Fields via String-Net Models
title_short CFT Correlators for Cardy Bulk Fields via String-Net Models
title_sort cft correlators for cardy bulk fields via string-net models
url https://nasplib.isofts.kiev.ua/handle/123456789/211309
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AT yangyang cftcorrelatorsforcardybulkfieldsviastringnetmodels