Sub-Doppler cooling, state preparation, and optical trapping of a triel atom
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866918194833260544 |
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| author | Li, Putian Yu, Xianquan Chew, Seth Hew Peng Mo, Jinchao Lu, Tiangao Nicholson, Travis L. |
| author_facet | Li, Putian Yu, Xianquan Chew, Seth Hew Peng Mo, Jinchao Lu, Tiangao Nicholson, Travis L. |
| contents | Ultracold gases of atoms from Main Group III (Group 13) of the Periodic Table, also known as "triel elements," have great potential for a new generation of quantum matter experiments. The first magneto-optical trap of a triel element (indium) was recently realized, but more progress is needed before a triel is ready for modern ultracold quantum science experiments in optical traps. Reaching this regime typically requires atoms that are cooled to the 10 uK level or below, prepared in pure quantum states, and confined in a laser field. Here we report the achievement of all three of these milestones in atomic indium. First, we perform polarization gradient cooling of an indium gas to 15 uK. Second, we spin polarize the gas into a single hyperfine sublevel of either the $5P_{1/2}$ indium ground state or the $5P_{3/2}$ metastable state. Third, we trap indium in a 1064 nm optical lattice, achieving a 3 s trap lifetime. With these results, indium is now a candidate for a next generation quantum research platform. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2412_13470 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Sub-Doppler cooling, state preparation, and optical trapping of a triel atom Li, Putian Yu, Xianquan Chew, Seth Hew Peng Mo, Jinchao Lu, Tiangao Nicholson, Travis L. Atomic Physics Quantum Gases Ultracold gases of atoms from Main Group III (Group 13) of the Periodic Table, also known as "triel elements," have great potential for a new generation of quantum matter experiments. The first magneto-optical trap of a triel element (indium) was recently realized, but more progress is needed before a triel is ready for modern ultracold quantum science experiments in optical traps. Reaching this regime typically requires atoms that are cooled to the 10 uK level or below, prepared in pure quantum states, and confined in a laser field. Here we report the achievement of all three of these milestones in atomic indium. First, we perform polarization gradient cooling of an indium gas to 15 uK. Second, we spin polarize the gas into a single hyperfine sublevel of either the $5P_{1/2}$ indium ground state or the $5P_{3/2}$ metastable state. Third, we trap indium in a 1064 nm optical lattice, achieving a 3 s trap lifetime. With these results, indium is now a candidate for a next generation quantum research platform. |
| title | Sub-Doppler cooling, state preparation, and optical trapping of a triel atom |
| topic | Atomic Physics Quantum Gases |
| url | https://arxiv.org/abs/2412.13470 |