Unitary Categorical Symmetries

Fuente: arXiv
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Autor principal: Bartsch, Thomas
Formato: Preprint
Publicado: 2025
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author Bartsch, Thomas
author_facet Bartsch, Thomas
contents Global invertible symmetries act unitarily on local observables or states of a quantum system. In this note, we aim to generalise this statement to non-invertible symmetries by considering unitary actions of higher fusion category symmetries $\mathcal{C}$ on twisted sector local operators. We propose that the latter transform in $\ast$-representations of the tube algebra associated to $\mathcal{C}$, which we introduce and classify using the notion of higher $S$-matrices of higher braided fusion categories.
format Preprint
id arxiv_https___arxiv_org_abs_2502_04440
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Unitary Categorical Symmetries
Bartsch, Thomas
High Energy Physics - Theory
Mathematical Physics
Category Theory
Quantum Algebra
Global invertible symmetries act unitarily on local observables or states of a quantum system. In this note, we aim to generalise this statement to non-invertible symmetries by considering unitary actions of higher fusion category symmetries $\mathcal{C}$ on twisted sector local operators. We propose that the latter transform in $\ast$-representations of the tube algebra associated to $\mathcal{C}$, which we introduce and classify using the notion of higher $S$-matrices of higher braided fusion categories.
title Unitary Categorical Symmetries
topic High Energy Physics - Theory
Mathematical Physics
Category Theory
Quantum Algebra
url https://arxiv.org/abs/2502.04440