Improved characterization of Feshbach resonances and interaction potentials between 23Na and 87Rb atoms
The ultracold mixture of 23Na and 87Rb atoms has become an important system for investigating physics in Bose-Bose atomic mixtures and for forming ultracold ground-state polar molecules. In this work, we provide an improved characterization of the most commonly used Feshbach resonance near 347.64 G...
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| Hauptverfasser: | , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
11 February 2022
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| In: |
Physical review
Year: 2022, Jahrgang: 105, Heft: 2, Pages: 1-10 |
| ISSN: | 2469-9934 |
| DOI: | 10.1103/PhysRevA.105.023313 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevA.105.023313 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.105.023313 
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| Verfasserangaben: | Zhichao Guo, Fan Jia, Bing Zhu, Lintao Li, Jeremy M. Hutson, and Dajun Wang |
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| 246 | 3 | 3 | |a Improved characterization of Feshbach resonances and interaction potentials between 23 Na and 87 Rb atoms |
| 246 | 3 | 3 | |a Improved characterization of Feshbach resonances and interaction potentials between twenty-three Na and eighty-seven Rb atoms |
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| 500 | |a Im Titel sind die 23 und die 87 in 23Na und 87Rb hochgestellt | ||
| 500 | |a Gesehen am 07.06.2022 | ||
| 520 | |a The ultracold mixture of 23Na and 87Rb atoms has become an important system for investigating physics in Bose-Bose atomic mixtures and for forming ultracold ground-state polar molecules. In this work, we provide an improved characterization of the most commonly used Feshbach resonance near 347.64 G between 23Na and 87Rb in their absolute ground states. We form Feshbach molecules using this resonance and measure their binding energies by dissociating them via magnetic-field modulation. We use the binding energies to refine the singlet and triplet potential-energy curves, using coupled-channel bound-state calculations. We then use coupled-channel scattering calculations on the resulting potentials to produce a high-precision mapping between magnetic field and scattering length. We also observe ten additional s-wave Feshbach resonances for 23Na and 87Rb in different combinations of Zeeman sublevels of the F=1 hyperfine states. Some of the resonances show two-body inelastic decay due to spin exchange. We compare the resonance properties with coupled-channel scattering calculations that full take account of inelastic properties. | ||
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| 700 | 1 | |a Li, Lintao |e VerfasserIn |4 aut | |
| 700 | 1 | |a Hutson, Jeremy M. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Wang, Dajun |e VerfasserIn |4 aut | |
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