A Gapless Phase with Haagerup Symmetry

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Autori principali: Bottini, Lea E., Schafer-Nameki, Sakura
Natura: Preprint
Pubblicazione: 2024
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author Bottini, Lea E.
Schafer-Nameki, Sakura
author_facet Bottini, Lea E.
Schafer-Nameki, Sakura
contents We construct a (1+1)d gapless theory which has Haagerup $\mathcal{H}_3$ symmetry. The construction relies on the recent exploration of the categorical Landau paradigm applied to fusion category symmetries. First, using the Symmetry Topological Field Theory, we construct all gapped phases with Haagerup symmetry. Extending this construction to gapless phases, we study the second order phase transition between gapped phases, and determine analytically a Haagerup-symmetric conformal field theory. This is given in terms of two copies of the three-state Potts model, on which we realise the full $\mathcal{H}_3$ symmetry action and determine the relevant deformations to the $\mathcal{H}_3$-symmetric gapped phases. This continuum analysis is corroborated by a lattice model construction of the gapped and gapless phases, using the anyon chain.
format Preprint
id arxiv_https___arxiv_org_abs_2410_19040
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A Gapless Phase with Haagerup Symmetry
Bottini, Lea E.
Schafer-Nameki, Sakura
High Energy Physics - Theory
Strongly Correlated Electrons
Mathematical Physics
Category Theory
Quantum Algebra
We construct a (1+1)d gapless theory which has Haagerup $\mathcal{H}_3$ symmetry. The construction relies on the recent exploration of the categorical Landau paradigm applied to fusion category symmetries. First, using the Symmetry Topological Field Theory, we construct all gapped phases with Haagerup symmetry. Extending this construction to gapless phases, we study the second order phase transition between gapped phases, and determine analytically a Haagerup-symmetric conformal field theory. This is given in terms of two copies of the three-state Potts model, on which we realise the full $\mathcal{H}_3$ symmetry action and determine the relevant deformations to the $\mathcal{H}_3$-symmetric gapped phases. This continuum analysis is corroborated by a lattice model construction of the gapped and gapless phases, using the anyon chain.
title A Gapless Phase with Haagerup Symmetry
topic High Energy Physics - Theory
Strongly Correlated Electrons
Mathematical Physics
Category Theory
Quantum Algebra
url https://arxiv.org/abs/2410.19040