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arXiv 2305.02405physics.atom-ph
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利用Λ增强型灰度粘团对光镊中的$^6$Li原子进行2000次成像

Imaging a $^6$Li Atom In An Optical Tweezer 2000 Times with $Λ$-Enhanced Gray Molasses

Karl N. Blodgett, David Peana, Saumitra Phatak, Lane M. Terry, Maria Paula Montes, Jonathan Hood

AI总结:

本研究利用Λ增强型灰度粘团冷却光实现光镊中$^6$Li原子的低损耗高次数成像,提出新冷却模型并提升装载率,为基态锂制备及基态LiCs分子组装奠定基础。

摘要:

我们使用Λ增强型灰度粘团冷却光,对光镊中的锂-6原子进行了数千次成像。尽管锂是最轻的碱金属,其反冲温度为3.5μK,我们仍实现了0.99950(2)的成像存活率,为光镊中中性原子的低损耗成像树立了新基准。我们将锂原子直接从磁光阱(MOT)装载到光镊中,装载率提升至0.7。我们将原子冷却至70μK,并提出了一种新的冷却模型,该模型可准确预测光镊中的稳态温度和散射速率。这些结果为锂原子的基态制备铺平了道路,进而助力基态LiCs分子的组装研究。

英文摘要:

We have imaged lithium-6 thousands of times in an optical tweezer using $Λ$-enhanced gray molasses cooling light. Despite being the lightest alkali, with a recoil temperature of 3.5 $μ$K, we achieve an imaging survival of 0.99950(2), which sets the new benchmark for low-loss imaging of neutral atoms in optical tweezers. Lithium is loaded directly from a MOT into a tweezer with an enhanced loading rate of 0.7. We cool the atom to 70 $μ$K and present a new cooling model that accurately predicts steady-state temperature and scattering rate in the tweezer. These results pave the way for ground state preparation of lithium en route to the assembly of the LiCs molecule in its ground state.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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