Dark states in an integrable XY central spin model
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arXiv
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| Main Authors: | , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909657838125056 |
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| author | van Tonder, Jaco Links, Jon |
| author_facet | van Tonder, Jaco Links, Jon |
| contents | Eigenstates of central spin models in which the central spin is unentangled with the environment are known as dark states. They have recently been observed in a class of integrable XX models. Here we find that dark states are present in XY models, but only for particular configurations of the central spin magnetic field. We show this via an explicit construction of the Bethe states. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_04651 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Dark states in an integrable XY central spin model van Tonder, Jaco Links, Jon Exactly Solvable and Integrable Systems Mathematical Physics Eigenstates of central spin models in which the central spin is unentangled with the environment are known as dark states. They have recently been observed in a class of integrable XX models. Here we find that dark states are present in XY models, but only for particular configurations of the central spin magnetic field. We show this via an explicit construction of the Bethe states. |
| title | Dark states in an integrable XY central spin model |
| topic | Exactly Solvable and Integrable Systems Mathematical Physics |
| url | https://arxiv.org/abs/2502.04651 |