Noninvertible Symmetry-Resolved Affleck-Ludwig-Cardy Formula and Entanglement Entropy from the Boundary Tube Algebra

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Auteurs principaux: Choi, Yichul, Rayhaun, Brandon C., Zheng, Yunqin
Format: Preprint
Publié: 2024
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author Choi, Yichul
Rayhaun, Brandon C.
Zheng, Yunqin
author_facet Choi, Yichul
Rayhaun, Brandon C.
Zheng, Yunqin
contents We derive a refined version of the Affleck-Ludwig-Cardy formula for a 1+1d conformal field theory, which controls the asymptotic density of high energy states on an interval transforming under a given representation of a noninvertible global symmetry. We use this to determine the universal leading and sub-leading contributions to the noninvertible symmetry-resolved entanglement entropy of a single interval. As a concrete example, we show that the ground state entanglement Hamiltonian for a single interval in the critical double Ising model enjoys a Kac-Paljutkin $H_8$ Hopf algebra symmetry when the boundary conditions at the entanglement cuts are chosen to preserve the product of two Kramers-Wannier symmetries, and we present the corresponding symmetry-resolved entanglement entropies. Our analysis utilizes recent developments in symmetry topological field theories (SymTFTs).
format Preprint
id arxiv_https___arxiv_org_abs_2409_02806
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Noninvertible Symmetry-Resolved Affleck-Ludwig-Cardy Formula and Entanglement Entropy from the Boundary Tube Algebra
Choi, Yichul
Rayhaun, Brandon C.
Zheng, Yunqin
High Energy Physics - Theory
Strongly Correlated Electrons
Quantum Algebra
Quantum Physics
We derive a refined version of the Affleck-Ludwig-Cardy formula for a 1+1d conformal field theory, which controls the asymptotic density of high energy states on an interval transforming under a given representation of a noninvertible global symmetry. We use this to determine the universal leading and sub-leading contributions to the noninvertible symmetry-resolved entanglement entropy of a single interval. As a concrete example, we show that the ground state entanglement Hamiltonian for a single interval in the critical double Ising model enjoys a Kac-Paljutkin $H_8$ Hopf algebra symmetry when the boundary conditions at the entanglement cuts are chosen to preserve the product of two Kramers-Wannier symmetries, and we present the corresponding symmetry-resolved entanglement entropies. Our analysis utilizes recent developments in symmetry topological field theories (SymTFTs).
title Noninvertible Symmetry-Resolved Affleck-Ludwig-Cardy Formula and Entanglement Entropy from the Boundary Tube Algebra
topic High Energy Physics - Theory
Strongly Correlated Electrons
Quantum Algebra
Quantum Physics
url https://arxiv.org/abs/2409.02806