The influence of spin-spin interaction on high partial wave Feshbach resonance in ultracold 23Na -87Rb system.
| Autor: | Si BW; School of Physics, Dalian University of Technology, Dalian 116024, China., Li JL; School of Physics, Dalian University of Technology, Dalian 116024, China.; Institut für Quantenmaterie, Center for Integrated Quantum Science and Technology IQST, Universität Ulm, Ulm 89069, Germany., Wang GR; School of Physics, Dalian University of Technology, Dalian 116024, China., Cong SL; School of Physics, Dalian University of Technology, Dalian 116024, China. |
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| Jazyk: | angličtina |
| Zdroj: | The Journal of chemical physics [J Chem Phys] 2024 Sep 14; Vol. 161 (10). |
| DOI: | 10.1063/5.0221398 |
| Abstrakt: | In this paper, we investigate the Feshbach resonances of high partial waves and the influence of spin-spin (S-S) interaction on ultracold scattering processes. Taking the Na23- Rb87 system as an example, we plot the variations of weakly bound state energy and elastic scattering cross section with magnetic field and with collision energy. We find that the number of splittings in high partial wave Feshbach resonances does not strictly conform to the expected l + 1 (l is rotational angular momentum), and the deviation is attributed to the influence of bound states in other channels coupled by S-S interaction. For different ml (the projection of l on the external magnetic field direction), the effects of S-S interaction lead to different scattering patterns in the incident channels. These results reveal the complex features of ultracold scattering processes in high partial waves caused by S-S interaction. (© 2024 Author(s). Published under an exclusive license by AIP Publishing.) |
| Databáze: | MEDLINE |
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