Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2507.12936 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866916848442802176 |
|---|---|
| author | Morita, Masato Siemund, Joachim Wu, Wei von Schoenfeld, Daniel Grieshaber, Jonathan Wojciechowska, Agata Jachymski, Krzysztof Walker, Thomas Thielemann, Fabian Schaetz, Tobias Tomza, Michał |
| author_facet | Morita, Masato Siemund, Joachim Wu, Wei von Schoenfeld, Daniel Grieshaber, Jonathan Wojciechowska, Agata Jachymski, Krzysztof Walker, Thomas Thielemann, Fabian Schaetz, Tobias Tomza, Michał |
| contents | We report a pronounced dependence of magnetic Feshbach resonance spectra on the initial hyperfine-Zeeman state of Li in ultracold $^{138}$Ba$^+$+$^6$Li collisions. The measured number and distribution of resonances differ significantly between the two lowest states despite their similar electron spin character. We address this puzzle by developing a comprehensive yet generic computational model calibrated against key statistical features in the experimental spectrum. We confirm that strong spin-orbit coupling induces essential changes in the distribution of resonances, leading to an increase in the number of resolvable resonances. Our model reproduces the statistics of the spectrum with the lowest Li state but struggles with the second-lowest state, where a significantly smaller number of resonances is experimentally observed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_12936 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Magnetic Feshbach resonances in Ba$^+$+Li collisions due to strong spin-orbit coupling Morita, Masato Siemund, Joachim Wu, Wei von Schoenfeld, Daniel Grieshaber, Jonathan Wojciechowska, Agata Jachymski, Krzysztof Walker, Thomas Thielemann, Fabian Schaetz, Tobias Tomza, Michał Atomic Physics Chemical Physics We report a pronounced dependence of magnetic Feshbach resonance spectra on the initial hyperfine-Zeeman state of Li in ultracold $^{138}$Ba$^+$+$^6$Li collisions. The measured number and distribution of resonances differ significantly between the two lowest states despite their similar electron spin character. We address this puzzle by developing a comprehensive yet generic computational model calibrated against key statistical features in the experimental spectrum. We confirm that strong spin-orbit coupling induces essential changes in the distribution of resonances, leading to an increase in the number of resolvable resonances. Our model reproduces the statistics of the spectrum with the lowest Li state but struggles with the second-lowest state, where a significantly smaller number of resonances is experimentally observed. |
| title | Magnetic Feshbach resonances in Ba$^+$+Li collisions due to strong spin-orbit coupling |
| topic | Atomic Physics Chemical Physics |
| url | https://arxiv.org/abs/2507.12936 |