Exact Quantum Many-Body Scars by a generalized Matrix-Product Ansatz
Fuente:
arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866914528550191104 |
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| author | Gehrmann, Sascha Essler, Fabian H. L. |
| author_facet | Gehrmann, Sascha Essler, Fabian H. L. |
| contents | We construct exact eigenstates of quantum many-body systems with Hamiltonians that are not frustration-free in matrix product form, based on a local error cancellation ansatz motivated by the Derrida-Evans-Hakim-Pasquier method for finding the stationary state of the asymmetric simple exclusion process. We demonstrate the approach with explicit examples in both one and two spatial dimensions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_03020 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Exact Quantum Many-Body Scars by a generalized Matrix-Product Ansatz Gehrmann, Sascha Essler, Fabian H. L. Quantum Physics Statistical Mechanics We construct exact eigenstates of quantum many-body systems with Hamiltonians that are not frustration-free in matrix product form, based on a local error cancellation ansatz motivated by the Derrida-Evans-Hakim-Pasquier method for finding the stationary state of the asymmetric simple exclusion process. We demonstrate the approach with explicit examples in both one and two spatial dimensions. |
| title | Exact Quantum Many-Body Scars by a generalized Matrix-Product Ansatz |
| topic | Quantum Physics Statistical Mechanics |
| url | https://arxiv.org/abs/2605.03020 |