Entanglement dynamics for atoms near a reflecting boundary: enhancement and suppression by environment-induced interactions
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| Format: | Preprint |
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2026
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| _version_ | 1866917299277004800 |
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| author | Chen, Ying Yu, Hongwei Hu, Jiawei |
| author_facet | Chen, Ying Yu, Hongwei Hu, Jiawei |
| contents | We investigate how environment-induced interactions influence the entanglement dynamics of two static atoms placed near a perfectly reflecting boundary. In this setting, the environment-induced interactions include both atom-boundary contributions (position-dependent Lamb shifts) and the induced atom-atom interaction mediated by the field. We show that, regardless of the initial two-atom state, the entanglement dynamics differs qualitatively and quantitatively from predictions that neglect these energy-shift effects. Depending on the geometry and parameter regime, the environment-induced interactions can either enhance entanglement generation -- yielding a larger maximum concurrence and a longer entanglement lifetime -- or suppress it, reducing both the peak concurrence and the survival time. This behavior contrasts sharply with the free-space case, where the environment-induced atom-atom interaction affects entanglement generation only for a restricted class of initial states and does so in an exclusively assisting manner. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_23773 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Entanglement dynamics for atoms near a reflecting boundary: enhancement and suppression by environment-induced interactions Chen, Ying Yu, Hongwei Hu, Jiawei Quantum Physics We investigate how environment-induced interactions influence the entanglement dynamics of two static atoms placed near a perfectly reflecting boundary. In this setting, the environment-induced interactions include both atom-boundary contributions (position-dependent Lamb shifts) and the induced atom-atom interaction mediated by the field. We show that, regardless of the initial two-atom state, the entanglement dynamics differs qualitatively and quantitatively from predictions that neglect these energy-shift effects. Depending on the geometry and parameter regime, the environment-induced interactions can either enhance entanglement generation -- yielding a larger maximum concurrence and a longer entanglement lifetime -- or suppress it, reducing both the peak concurrence and the survival time. This behavior contrasts sharply with the free-space case, where the environment-induced atom-atom interaction affects entanglement generation only for a restricted class of initial states and does so in an exclusively assisting manner. |
| title | Entanglement dynamics for atoms near a reflecting boundary: enhancement and suppression by environment-induced interactions |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2602.23773 |