Quantum many-body scarring from Kramers-Wannier duality
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
| Veröffentlicht: |
2025
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| _version_ | 1866909990594281472 |
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| author | Fontana, Weslei B. Oliviero, Fabrizio G. Huang, Yi-Ping |
| author_facet | Fontana, Weslei B. Oliviero, Fabrizio G. Huang, Yi-Ping |
| contents | Kramers-Wannier duality, a hallmark of the Ising model, has recently gained renewed interest through its reinterpretation as a non-invertible symmetry with a state-level action. Using sequential quantum circuits (SQC), we argue that this duality governs the stability of quantum many-body scar (QMBS) states in a nonintegrable model, depending on whether the dual preserves the embedding conditions for scarring. This is supported by good agreement between first-order perturbation theory and numerics, which capture scar dynamics despite chaotic spectra. Our results establish non-invertible dualities as both a generative mechanism and a diagnostic tool for quantum many- body scarring, offering a generalized symmetry-based route to weak ergodicity breaking. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2508_05403 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Quantum many-body scarring from Kramers-Wannier duality Fontana, Weslei B. Oliviero, Fabrizio G. Huang, Yi-Ping Strongly Correlated Electrons Other Condensed Matter Quantum Physics Kramers-Wannier duality, a hallmark of the Ising model, has recently gained renewed interest through its reinterpretation as a non-invertible symmetry with a state-level action. Using sequential quantum circuits (SQC), we argue that this duality governs the stability of quantum many-body scar (QMBS) states in a nonintegrable model, depending on whether the dual preserves the embedding conditions for scarring. This is supported by good agreement between first-order perturbation theory and numerics, which capture scar dynamics despite chaotic spectra. Our results establish non-invertible dualities as both a generative mechanism and a diagnostic tool for quantum many- body scarring, offering a generalized symmetry-based route to weak ergodicity breaking. |
| title | Quantum many-body scarring from Kramers-Wannier duality |
| topic | Strongly Correlated Electrons Other Condensed Matter Quantum Physics |
| url | https://arxiv.org/abs/2508.05403 |