Dualities in One-Dimensional Quantum Lattice Models: Topological Sectors

It has been a long-standing open problem to construct a general framework for relating the spectra of dual theories to each other. Here, we solve this problem for the case of one-dimensional quantum lattice models with symmetry-twisted boundary conditions. In Ref. [PRX Quantum 4, 020357], dualities...

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Main Authors: Laurens Lootens, Clement Delcamp, Frank Verstraete
Format: Article
Language:English
Published: American Physical Society 2024-03-01
Series:PRX Quantum
Online Access:http://doi.org/10.1103/PRXQuantum.5.010338
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author Laurens Lootens
Clement Delcamp
Frank Verstraete
author_facet Laurens Lootens
Clement Delcamp
Frank Verstraete
author_sort Laurens Lootens
collection DOAJ
description It has been a long-standing open problem to construct a general framework for relating the spectra of dual theories to each other. Here, we solve this problem for the case of one-dimensional quantum lattice models with symmetry-twisted boundary conditions. In Ref. [PRX Quantum 4, 020357], dualities are defined between (categorically) symmetric models that only differ in a choice of module category. Using matrix product operators, we construct from the data of module functors explicit symmetry operators preserving boundary conditions as well as intertwiners mapping topological sectors of dual models onto one another. We illustrate our construction with a family of examples that are in the duality class of the spin-1/2 Heisenberg XXZ model. One model has symmetry operators forming the fusion category Rep(S_{3}) of representations of the group S_{3}. We find that the mapping between its topological sectors and those of the XXZ model is associated with the nontrivial braided autoequivalence of the Drinfel’d center of Rep(S_{3}).
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spelling doaj.art-fd47ee9d587746bca75f7c9f404f31502024-03-06T15:34:26ZengAmerican Physical SocietyPRX Quantum2691-33992024-03-015101033810.1103/PRXQuantum.5.010338Dualities in One-Dimensional Quantum Lattice Models: Topological SectorsLaurens LootensClement DelcampFrank VerstraeteIt has been a long-standing open problem to construct a general framework for relating the spectra of dual theories to each other. Here, we solve this problem for the case of one-dimensional quantum lattice models with symmetry-twisted boundary conditions. In Ref. [PRX Quantum 4, 020357], dualities are defined between (categorically) symmetric models that only differ in a choice of module category. Using matrix product operators, we construct from the data of module functors explicit symmetry operators preserving boundary conditions as well as intertwiners mapping topological sectors of dual models onto one another. We illustrate our construction with a family of examples that are in the duality class of the spin-1/2 Heisenberg XXZ model. One model has symmetry operators forming the fusion category Rep(S_{3}) of representations of the group S_{3}. We find that the mapping between its topological sectors and those of the XXZ model is associated with the nontrivial braided autoequivalence of the Drinfel’d center of Rep(S_{3}).http://doi.org/10.1103/PRXQuantum.5.010338
spellingShingle Laurens Lootens
Clement Delcamp
Frank Verstraete
Dualities in One-Dimensional Quantum Lattice Models: Topological Sectors
PRX Quantum
title Dualities in One-Dimensional Quantum Lattice Models: Topological Sectors
title_full Dualities in One-Dimensional Quantum Lattice Models: Topological Sectors
title_fullStr Dualities in One-Dimensional Quantum Lattice Models: Topological Sectors
title_full_unstemmed Dualities in One-Dimensional Quantum Lattice Models: Topological Sectors
title_short Dualities in One-Dimensional Quantum Lattice Models: Topological Sectors
title_sort dualities in one dimensional quantum lattice models topological sectors
url http://doi.org/10.1103/PRXQuantum.5.010338
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