Topological T-Duality for Twisted Tori

We apply the *-algebraic formalism of topological T-duality due to Mathai and Rosenberg to a broad class of topological spaces that include the torus bundles appearing in string theory compactifications with duality twists, such as nilmanifolds, as well as many other examples. We develop a simple pr...

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Veröffentlicht in:Symmetry, Integrability and Geometry: Methods and Applications
Datum:2021
Hauptverfasser: Aschieri, Paolo, Szabo, Richard J.
Format: Artikel
Sprache:Englisch
Veröffentlicht: Інститут математики НАН України 2021
Online Zugang:https://nasplib.isofts.kiev.ua/handle/123456789/211176
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Назва журналу:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Zitieren:Topological T-Duality for Twisted Tori. Paolo Aschieri and Richard J. Szabo. SIGMA 17 (2021), 012, 51 pages

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
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author Aschieri, Paolo
Szabo, Richard J.
author_facet Aschieri, Paolo
Szabo, Richard J.
citation_txt Topological T-Duality for Twisted Tori. Paolo Aschieri and Richard J. Szabo. SIGMA 17 (2021), 012, 51 pages
collection DSpace DC
container_title Symmetry, Integrability and Geometry: Methods and Applications
description We apply the *-algebraic formalism of topological T-duality due to Mathai and Rosenberg to a broad class of topological spaces that include the torus bundles appearing in string theory compactifications with duality twists, such as nilmanifolds, as well as many other examples. We develop a simple procedure in this setting for constructing the T-duals starting from a commutative *-algebra with an action of ℝⁿ. We treat the general class of almost abelian solvmanifolds in arbitrary dimension in detail, where we provide necessary and sufficient criteria for the existence of classical T-duals in terms of purely group theoretic data, and compute them explicitly as continuous-trace algebras with non-trivial Dixmier-Douady classes. We prove that any such solvmanifold has a topological T-dual given by a *-algebra bundle of noncommutative tori, which we also compute explicitly. The monodromy of the original torus bundle becomes a Morita equivalence among the fiber algebras, so that these *-algebras rigorously describe the T-folds from non-geometric string theory.
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publishDate 2021
publisher Інститут математики НАН України
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spelling Aschieri, Paolo
Szabo, Richard J.
2025-12-25T13:22:52Z
2021
Topological T-Duality for Twisted Tori. Paolo Aschieri and Richard J. Szabo. SIGMA 17 (2021), 012, 51 pages
1815-0659
2020 Mathematics Subject Classification: 46L55; 81T30; 16D90
arXiv:2006.10048
https://nasplib.isofts.kiev.ua/handle/123456789/211176
https://doi.org/10.3842/SIGMA.2021.012
We apply the *-algebraic formalism of topological T-duality due to Mathai and Rosenberg to a broad class of topological spaces that include the torus bundles appearing in string theory compactifications with duality twists, such as nilmanifolds, as well as many other examples. We develop a simple procedure in this setting for constructing the T-duals starting from a commutative *-algebra with an action of ℝⁿ. We treat the general class of almost abelian solvmanifolds in arbitrary dimension in detail, where we provide necessary and sufficient criteria for the existence of classical T-duals in terms of purely group theoretic data, and compute them explicitly as continuous-trace algebras with non-trivial Dixmier-Douady classes. We prove that any such solvmanifold has a topological T-dual given by a *-algebra bundle of noncommutative tori, which we also compute explicitly. The monodromy of the original torus bundle becomes a Morita equivalence among the fiber algebras, so that these *-algebras rigorously describe the T-folds from non-geometric string theory.
We thank Ryszard Nest and Erik Plauschinn for helpful discussions. We thank the anonymous referees for their detailed suggestions. This research was supported by funds from Università del Piemonte Orientale (UPO). P.A. acknowledges partial support from INFN, CSN4, and Iniziativa Speci ca GSS. P.A. is affiliated with INdAM-GNFM. R.J.S. acknowledges a Visiting Professorship through UPO Internationalization Funds. R.J.S. also acknowledges the ArnoldRegge Centre for the visit and INFN. The work of R.J.S. was supported in part by the Consolidated Grant ST/P000363/1 from the UK Science and Technology Facilities Council.
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Інститут математики НАН України
Symmetry, Integrability and Geometry: Methods and Applications
Topological T-Duality for Twisted Tori
Article
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spellingShingle Topological T-Duality for Twisted Tori
Aschieri, Paolo
Szabo, Richard J.
title Topological T-Duality for Twisted Tori
title_full Topological T-Duality for Twisted Tori
title_fullStr Topological T-Duality for Twisted Tori
title_full_unstemmed Topological T-Duality for Twisted Tori
title_short Topological T-Duality for Twisted Tori
title_sort topological t-duality for twisted tori
url https://nasplib.isofts.kiev.ua/handle/123456789/211176
work_keys_str_mv AT aschieripaolo topologicaltdualityfortwistedtori
AT szaborichardj topologicaltdualityfortwistedtori