Topological Orders in (4+1)-Dimensions

We investigate the Morita equivalences of (4+1)-dimensional topological orders. We show that any (4+1)-dimensional super (fermionic) topological order admits a gapped boundary condition -- in other words, all (4+1)-dimensional super topological orders are Morita trivial. As a result, there are no...

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Main Author: Theo Johnson-Freyd, Matthew Yu
Format: Article
Language:English
Published: SciPost 2022-09-01
Series:SciPost Physics
Online Access:https://scipost.org/SciPostPhys.13.3.068
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author Theo Johnson-Freyd, Matthew Yu
author_facet Theo Johnson-Freyd, Matthew Yu
author_sort Theo Johnson-Freyd, Matthew Yu
collection DOAJ
description We investigate the Morita equivalences of (4+1)-dimensional topological orders. We show that any (4+1)-dimensional super (fermionic) topological order admits a gapped boundary condition -- in other words, all (4+1)-dimensional super topological orders are Morita trivial. As a result, there are no inherently gapless super (3+1)-dimensional theories. On the other hand, we show that there are infinitely many algebraically Morita-inequivalent bosonic (4+1)-dimensional topological orders.
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spelling doaj.art-00143aba692f42ac80cf7180601941032022-12-22T01:59:24ZengSciPostSciPost Physics2542-46532022-09-0113306810.21468/SciPostPhys.13.3.068Topological Orders in (4+1)-DimensionsTheo Johnson-Freyd, Matthew YuWe investigate the Morita equivalences of (4+1)-dimensional topological orders. We show that any (4+1)-dimensional super (fermionic) topological order admits a gapped boundary condition -- in other words, all (4+1)-dimensional super topological orders are Morita trivial. As a result, there are no inherently gapless super (3+1)-dimensional theories. On the other hand, we show that there are infinitely many algebraically Morita-inequivalent bosonic (4+1)-dimensional topological orders.https://scipost.org/SciPostPhys.13.3.068
spellingShingle Theo Johnson-Freyd, Matthew Yu
Topological Orders in (4+1)-Dimensions
SciPost Physics
title Topological Orders in (4+1)-Dimensions
title_full Topological Orders in (4+1)-Dimensions
title_fullStr Topological Orders in (4+1)-Dimensions
title_full_unstemmed Topological Orders in (4+1)-Dimensions
title_short Topological Orders in (4+1)-Dimensions
title_sort topological orders in 4 1 dimensions
url https://scipost.org/SciPostPhys.13.3.068
work_keys_str_mv AT theojohnsonfreydmatthewyu topologicalordersin41dimensions