Observation of a Halo Trimer in an Ultracold Bose-Fermi Mixture
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866918215112720384 |
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| author | Chuang, Alexander Y. Bui, Huan Q. Christianen, Arthur Zhang, Yiming Ni, Yiqi Ahmed-Braun, Denise Robens, Carsten Zwierlein, Martin W. |
| author_facet | Chuang, Alexander Y. Bui, Huan Q. Christianen, Arthur Zhang, Yiming Ni, Yiqi Ahmed-Braun, Denise Robens, Carsten Zwierlein, Martin W. |
| contents | The quantum mechanics of three interacting particles gives rise to interesting universal phenomena, such as the staircase of Efimov trimers predicted in the context of nuclear physics and observed in ultracold gases. Here, we observe a novel type of halo trimer using radiofrequency spectroscopy in an ultracold mixture of $^{23}$Na and $^{40}$K atoms. The trimers consist of two light bosons and one heavy fermion, and have the structure of a Feshbach dimer weakly bound to one additional boson. We find that the trimer peak closely follows the dimer resonance over the entire range of explored interaction strengths across an order of magnitude variation of the dimer energy, as reproduced by our theoretical analysis. The presence of this halo trimer is of direct relevance for many-body physics in ultracold mixtures and the association of ultracold molecules. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2411_04820 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Observation of a Halo Trimer in an Ultracold Bose-Fermi Mixture Chuang, Alexander Y. Bui, Huan Q. Christianen, Arthur Zhang, Yiming Ni, Yiqi Ahmed-Braun, Denise Robens, Carsten Zwierlein, Martin W. Quantum Gases Atomic Physics The quantum mechanics of three interacting particles gives rise to interesting universal phenomena, such as the staircase of Efimov trimers predicted in the context of nuclear physics and observed in ultracold gases. Here, we observe a novel type of halo trimer using radiofrequency spectroscopy in an ultracold mixture of $^{23}$Na and $^{40}$K atoms. The trimers consist of two light bosons and one heavy fermion, and have the structure of a Feshbach dimer weakly bound to one additional boson. We find that the trimer peak closely follows the dimer resonance over the entire range of explored interaction strengths across an order of magnitude variation of the dimer energy, as reproduced by our theoretical analysis. The presence of this halo trimer is of direct relevance for many-body physics in ultracold mixtures and the association of ultracold molecules. |
| title | Observation of a Halo Trimer in an Ultracold Bose-Fermi Mixture |
| topic | Quantum Gases Atomic Physics |
| url | https://arxiv.org/abs/2411.04820 |