发表机构
University of Chinese Academy of Sciences; Songshan Lake Materials Laboratory（中国科学院大学; 松山湖材料实验室）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
该研究通过优化磁阱装载过程，将$^{39}\mathrm{K}$玻色-爱因斯坦凝聚实验的磁阱装载效率提升了约15%，并获得了含$1.2\times10^{5}$个原子的纯净凝聚体。
AI 中文摘要
在实验过程中，大的原子数对于产生高质量的玻色-爱因斯坦凝聚体至关重要。我们通过优化磁阱（MT）装载过程，实验上实现了磁阱装载效率约15%的提升。装载时间远短于原子在磁阱中的寿命，这意味着装载过程中因有限阱寿命导致的原子损失可以忽略不计。我们在光阱中经过蒸发冷却后，获得了含有$1.2\times10^{5}$个原子的几乎纯净的$^{39}\mathrm{K}$凝聚体。
英文摘要
During the experimental sequence, a large atom number is important for the creation of high-quality Bose--Einstein condensates. We report an experimental increase of about 15% in magnetic-trap (MT) loading efficiency by optimizing the MT loading process. The loading time is much shorter than the lifetime of the atoms in the MT, which means atom loss during loading due to the finite trap lifetime can be neglected. We obtain an almost pure $^{39}\mathrm{K}$ condensate with $1.2\times10^{5}$ atoms after evaporative cooling in our optical trap.
