Bose polarons as relativistic Unruh-DeWitt detectors: Entanglement harvesting from Bose-Einstein condensates
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866917240499077120 |
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| author | Perche, T. Rick Gozzini, Francesco Oberthaler, Markus K. |
| author_facet | Perche, T. Rick Gozzini, Francesco Oberthaler, Markus K. |
| contents | We show that a bound impurity in a Bose-Einstein condensate can be directly mapped to an Unruh-DeWitt detector interacting with a relativistic quantum field. We provide explicit experimental parameters for an implementation using ${}^{39}\text{K}$ impurities coupled to a ${}^{87}\text{Rb}$ condensate via finite-time Feshbach tuning. As an application, we study the extraction of vacuum entanglement from distant regions of the condensate and find viable parameters for the implementation of entanglement harvesting. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_21381 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Bose polarons as relativistic Unruh-DeWitt detectors: Entanglement harvesting from Bose-Einstein condensates Perche, T. Rick Gozzini, Francesco Oberthaler, Markus K. Quantum Physics Quantum Gases High Energy Physics - Theory We show that a bound impurity in a Bose-Einstein condensate can be directly mapped to an Unruh-DeWitt detector interacting with a relativistic quantum field. We provide explicit experimental parameters for an implementation using ${}^{39}\text{K}$ impurities coupled to a ${}^{87}\text{Rb}$ condensate via finite-time Feshbach tuning. As an application, we study the extraction of vacuum entanglement from distant regions of the condensate and find viable parameters for the implementation of entanglement harvesting. |
| title | Bose polarons as relativistic Unruh-DeWitt detectors: Entanglement harvesting from Bose-Einstein condensates |
| topic | Quantum Physics Quantum Gases High Energy Physics - Theory |
| url | https://arxiv.org/abs/2512.21381 |