Exact real time dynamics with free fermions in disguise
Fuente:
arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2024
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| _version_ | 1866915236267687936 |
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| author | Vona, István Mestyán, Márton Pozsgay, Balázs |
| author_facet | Vona, István Mestyán, Márton Pozsgay, Balázs |
| contents | We consider quantum spin chains with a hidden free fermionic structure, distinct from the Jordan-Wigner transformation and its generalizations. We express selected local operators with the hidden fermions. This way we can exactly solve the real time dynamics in various physical scenarios, including the computation of selected dynamical two point functions, in continuous or discrete time. In the latter case we build a quantum circuit that can be implemented on a quantum computer. With this we extend the family of classically simulable quantum many-body processes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_20832 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Exact real time dynamics with free fermions in disguise Vona, István Mestyán, Márton Pozsgay, Balázs Statistical Mechanics Exactly Solvable and Integrable Systems Quantum Physics We consider quantum spin chains with a hidden free fermionic structure, distinct from the Jordan-Wigner transformation and its generalizations. We express selected local operators with the hidden fermions. This way we can exactly solve the real time dynamics in various physical scenarios, including the computation of selected dynamical two point functions, in continuous or discrete time. In the latter case we build a quantum circuit that can be implemented on a quantum computer. With this we extend the family of classically simulable quantum many-body processes. |
| title | Exact real time dynamics with free fermions in disguise |
| topic | Statistical Mechanics Exactly Solvable and Integrable Systems Quantum Physics |
| url | https://arxiv.org/abs/2405.20832 |