Observation of high partial-wave Feshbach resonances in 39K Bose–Einstein condensates
We report the new observation of several high partial-wave (HPW) magnetic Feshbach resonances (FRs) in ^39 K atoms of the hyperfine substate $\left|F = 1,m_{F} = -1\right\rangle$ . These resonances locate at the region between two broad s -wave FRs from 32.6 G to 162.8 G, in which Bose–Einstein cond...
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IOP Publishing
2025-01-01
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| Series: | New Journal of Physics |
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| Online Access: | https://doi.org/10.1088/1367-2630/adcd95 |
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| author | Yue Zhang Liangchao Chen Zekui Wang Yazhou Wang Pengjun Wang Lianghui Huang Zengming Meng Ran Qi Jing Zhang |
| author_facet | Yue Zhang Liangchao Chen Zekui Wang Yazhou Wang Pengjun Wang Lianghui Huang Zengming Meng Ran Qi Jing Zhang |
| author_sort | Yue Zhang |
| collection | DOAJ |
| description | We report the new observation of several high partial-wave (HPW) magnetic Feshbach resonances (FRs) in ^39 K atoms of the hyperfine substate $\left|F = 1,m_{F} = -1\right\rangle$ . These resonances locate at the region between two broad s -wave FRs from 32.6 G to 162.8 G, in which Bose–Einstein condensates can be produced with tunable positive scattering length obtained by magnetic FRs. These HPW FRs are induced by the dipolar spin–spin interaction with s -wave in the open channel and HPW in the closed channel. Therefore, these HPW FRs have distinct characteristics in temperature dependence and loss line shape from that induced by spin–exchange interaction with HPWs in both open and closed channels. Among these resonances, one d -wave and two g -wave FRs are confirmed by the multichannel quantum-defect theory calculation. The HPW FRs have significant applications in many-body physics dominated by HPW pairing. |
| format | Article |
| id | doaj-art-0ba99ee8d71549edafd2fe82b03af002 |
| institution | OA Journals |
| issn | 1367-2630 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj-art-0ba99ee8d71549edafd2fe82b03af0022025-08-20T02:05:18ZengIOP PublishingNew Journal of Physics1367-26302025-01-0127606300210.1088/1367-2630/adcd95Observation of high partial-wave Feshbach resonances in 39K Bose–Einstein condensatesYue Zhang0Liangchao Chen1Zekui Wang2Yazhou Wang3Pengjun Wang4Lianghui Huang5Zengming Meng6Ran Qi7Jing Zhang8State Key Laboratory of Quantum Optics Technologies and Devices, Institute of Opto-electronics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of China; Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of ChinaState Key Laboratory of Quantum Optics Technologies and Devices, Institute of Opto-electronics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of China; Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of ChinaState Key Laboratory of Quantum Optics Technologies and Devices, Institute of Opto-electronics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of China; Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of ChinaState Key Laboratory of Quantum Optics Technologies and Devices, Institute of Opto-electronics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of China; Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of ChinaState Key Laboratory of Quantum Optics Technologies and Devices, Institute of Opto-electronics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of China; Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of ChinaState Key Laboratory of Quantum Optics Technologies and Devices, Institute of Opto-electronics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of China; Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of ChinaState Key Laboratory of Quantum Optics Technologies and Devices, Institute of Opto-electronics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of China; Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of ChinaDepartment of Physics, Renmin University of China , Beijing 100872, People’s Republic of ChinaState Key Laboratory of Quantum Optics Technologies and Devices, Institute of Opto-electronics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of China; Collaborative Innovation Center of Extreme Optics, Shanxi University , Taiyuan, Shanxi 030006, People’s Republic of ChinaWe report the new observation of several high partial-wave (HPW) magnetic Feshbach resonances (FRs) in ^39 K atoms of the hyperfine substate $\left|F = 1,m_{F} = -1\right\rangle$ . These resonances locate at the region between two broad s -wave FRs from 32.6 G to 162.8 G, in which Bose–Einstein condensates can be produced with tunable positive scattering length obtained by magnetic FRs. These HPW FRs are induced by the dipolar spin–spin interaction with s -wave in the open channel and HPW in the closed channel. Therefore, these HPW FRs have distinct characteristics in temperature dependence and loss line shape from that induced by spin–exchange interaction with HPWs in both open and closed channels. Among these resonances, one d -wave and two g -wave FRs are confirmed by the multichannel quantum-defect theory calculation. The HPW FRs have significant applications in many-body physics dominated by HPW pairing.https://doi.org/10.1088/1367-2630/adcd95Bose–Einstein condensatesFeshbach resonancehigh partial-wave Feshbach resonance |
| spellingShingle | Yue Zhang Liangchao Chen Zekui Wang Yazhou Wang Pengjun Wang Lianghui Huang Zengming Meng Ran Qi Jing Zhang Observation of high partial-wave Feshbach resonances in 39K Bose–Einstein condensates New Journal of Physics Bose–Einstein condensates Feshbach resonance high partial-wave Feshbach resonance |
| title | Observation of high partial-wave Feshbach resonances in 39K Bose–Einstein condensates |
| title_full | Observation of high partial-wave Feshbach resonances in 39K Bose–Einstein condensates |
| title_fullStr | Observation of high partial-wave Feshbach resonances in 39K Bose–Einstein condensates |
| title_full_unstemmed | Observation of high partial-wave Feshbach resonances in 39K Bose–Einstein condensates |
| title_short | Observation of high partial-wave Feshbach resonances in 39K Bose–Einstein condensates |
| title_sort | observation of high partial wave feshbach resonances in 39k bose einstein condensates |
| topic | Bose–Einstein condensates Feshbach resonance high partial-wave Feshbach resonance |
| url | https://doi.org/10.1088/1367-2630/adcd95 |
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