Classification of Thouless pumps with non-invertible symmetries and implications for Floquet phases
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| Format: | Preprint |
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2025
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| _version_ | 1866911188860796928 |
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| author | Li, Yabo Dell'acqua, Matteo Mitra, Aditi |
| author_facet | Li, Yabo Dell'acqua, Matteo Mitra, Aditi |
| contents | We study symmetry preserving adiabatic and Floquet dynamics of one-dimensional systems. Using quasiadiabatic evolution, we establish a correspondence between adiabatic cycles and invertible defects generated by spatially truncated Thouless pump operators. Employing the classification of gapped phases by module categories, we show that the Thouless pumps are classified by the group of autoequivalences of the module category. We then explicitly construct Thouless pump operators for minimal lattice models with $\text{Vec}_G$, Rep($G$), and Rep($H$) symmetries, and show how the Thouless pump operators have the group structure of autoequivalences. The Thouless pump operators, together with Hamiltonians with gapped ground states, are then used to construct Floquet drives. An analytic solution for the Floquet phase diagram characterized by winding numbers is constructed when the Floquet drives obey an Onsager algebra. Our approach points the way to a general connection between distinct Thouless pumps and distinct families of Floquet phases. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2510_01626 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Classification of Thouless pumps with non-invertible symmetries and implications for Floquet phases Li, Yabo Dell'acqua, Matteo Mitra, Aditi Strongly Correlated Electrons Quantum Physics We study symmetry preserving adiabatic and Floquet dynamics of one-dimensional systems. Using quasiadiabatic evolution, we establish a correspondence between adiabatic cycles and invertible defects generated by spatially truncated Thouless pump operators. Employing the classification of gapped phases by module categories, we show that the Thouless pumps are classified by the group of autoequivalences of the module category. We then explicitly construct Thouless pump operators for minimal lattice models with $\text{Vec}_G$, Rep($G$), and Rep($H$) symmetries, and show how the Thouless pump operators have the group structure of autoequivalences. The Thouless pump operators, together with Hamiltonians with gapped ground states, are then used to construct Floquet drives. An analytic solution for the Floquet phase diagram characterized by winding numbers is constructed when the Floquet drives obey an Onsager algebra. Our approach points the way to a general connection between distinct Thouless pumps and distinct families of Floquet phases. |
| title | Classification of Thouless pumps with non-invertible symmetries and implications for Floquet phases |
| topic | Strongly Correlated Electrons Quantum Physics |
| url | https://arxiv.org/abs/2510.01626 |