High-flux cold lithium-6 and rubidium-87 atoms from compact two-dimensional magneto-optical traps
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| Format: | Preprint |
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2025
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| _version_ | 1866914553274564608 |
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| author | Lu, Yun-Xuan Zhu, An-Wei Frank, Christine E. Huang, Xin-Yi Luo, Xin-Yu |
| author_facet | Lu, Yun-Xuan Zhu, An-Wei Frank, Christine E. Huang, Xin-Yi Luo, Xin-Yu |
| contents | We report a compact setup with in-series two-dimensional magneto-optical traps (2D MOTs) that provides high-flux cold lithium and rubidium atoms. Thanks to the efficient short-distance Zeeman slowing, the maximum 3D MOT loading rate of lithium atoms reaches a record value of $6.6\times 10^{9}$ atoms/s at a moderate lithium-oven temperature of 372 degrees Celsius, which is 44 times higher than that without the Zeeman slowing light. The flux of rubidium is also as high as $2.3\times10^9$ atoms/s with the rubidium oven held at room temperature. Meanwhile, the entire vacuum-chamber system, including an ultra-high-vacuum science cell, is within a small volume of $55\times65\times70~\mathrm{cm}^3$. Our work represents a substantial improvement over traditional bulky and complex dual-species cold-atom setups. It provides a good starting point for the fast production of a double-degenerate lithium-rubidium atomic mixture and large samples of ultracold lithium-rubidium ground-state molecules. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2512_24177 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | High-flux cold lithium-6 and rubidium-87 atoms from compact two-dimensional magneto-optical traps Lu, Yun-Xuan Zhu, An-Wei Frank, Christine E. Huang, Xin-Yi Luo, Xin-Yu Atomic Physics Quantum Gases We report a compact setup with in-series two-dimensional magneto-optical traps (2D MOTs) that provides high-flux cold lithium and rubidium atoms. Thanks to the efficient short-distance Zeeman slowing, the maximum 3D MOT loading rate of lithium atoms reaches a record value of $6.6\times 10^{9}$ atoms/s at a moderate lithium-oven temperature of 372 degrees Celsius, which is 44 times higher than that without the Zeeman slowing light. The flux of rubidium is also as high as $2.3\times10^9$ atoms/s with the rubidium oven held at room temperature. Meanwhile, the entire vacuum-chamber system, including an ultra-high-vacuum science cell, is within a small volume of $55\times65\times70~\mathrm{cm}^3$. Our work represents a substantial improvement over traditional bulky and complex dual-species cold-atom setups. It provides a good starting point for the fast production of a double-degenerate lithium-rubidium atomic mixture and large samples of ultracold lithium-rubidium ground-state molecules. |
| title | High-flux cold lithium-6 and rubidium-87 atoms from compact two-dimensional magneto-optical traps |
| topic | Atomic Physics Quantum Gases |
| url | https://arxiv.org/abs/2512.24177 |