Effective two- and three-body interactions between dressed impurities in a tilted double-well potential
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866914124785516544 |
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| author | Theel, F. Volosniev, A. G. Diplaris, D. Brauneis, F. Mistakidis, S. I. Schmelcher, P. |
| author_facet | Theel, F. Volosniev, A. G. Diplaris, D. Brauneis, F. Mistakidis, S. I. Schmelcher, P. |
| contents | We explore the impact and scaling of effective interactions between two and three impurity atoms, induced by a bosonic medium, on their density distributions. To facilitate the detection of mediated interactions, we propose a setup where impurities are trapped in a tilted double-well potential, while the medium is confined to a ring. The tilt of the potential breaks the spatial inversion symmetry allowing us to exploit the population of the energetically elevated well as a probe of induced interactions. For two impurities, the interaction with the medium reduces the impurity population at the energetically elevated well, which we interpret as evidence of induced impurity-impurity attraction. Furthermore, the impact of an induced three-body interaction is unveiled by comparing the predictions of an effective three-body model with many-body simulations. We extend our study for induced interactions to a three-component mixture containing distinguishable impurities. Our results suggest pathways to detect and tune induced two- and three-body interactions. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_20624 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Effective two- and three-body interactions between dressed impurities in a tilted double-well potential Theel, F. Volosniev, A. G. Diplaris, D. Brauneis, F. Mistakidis, S. I. Schmelcher, P. Quantum Gases We explore the impact and scaling of effective interactions between two and three impurity atoms, induced by a bosonic medium, on their density distributions. To facilitate the detection of mediated interactions, we propose a setup where impurities are trapped in a tilted double-well potential, while the medium is confined to a ring. The tilt of the potential breaks the spatial inversion symmetry allowing us to exploit the population of the energetically elevated well as a probe of induced interactions. For two impurities, the interaction with the medium reduces the impurity population at the energetically elevated well, which we interpret as evidence of induced impurity-impurity attraction. Furthermore, the impact of an induced three-body interaction is unveiled by comparing the predictions of an effective three-body model with many-body simulations. We extend our study for induced interactions to a three-component mixture containing distinguishable impurities. Our results suggest pathways to detect and tune induced two- and three-body interactions. |
| title | Effective two- and three-body interactions between dressed impurities in a tilted double-well potential |
| topic | Quantum Gases |
| url | https://arxiv.org/abs/2503.20624 |