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PreprintarXiv licencearXiv

Increase of Magnetic Trap Loading Efficiency for 39K Bose--Einstein Condensation Experiments

  • Yihao Cheng
  • Xiaoyang Shen
  • Weixin Li
  • Hao Du
  • Hongwu Zhao
  • Lin Xia
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Abstract

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 39K condensate with 1.2×105 atoms after evaporative cooling in our optical trap.

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Cite

BibTeXRIS
BibTeX
@misc{cheng2026increase,
  title = {{Increase of Magnetic Trap Loading Efficiency for $^39\mathrmK$ Bose--Einstein Condensation Experiments}},
  author = {Yihao Cheng and Xiaoyang Shen and Weixin Li and Hao Du and Hongwu Zhao and Lin Xia},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.08208},
  eprint = {2609.08208},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.08208},
}
RIS
TY  - UNPB
TI  - Increase of Magnetic Trap Loading Efficiency for ^39K Bose--Einstein Condensation Experiments
AU  - Yihao Cheng
AU  - Xiaoyang Shen
AU  - Weixin Li
AU  - Hao Du
AU  - Hongwu Zhao
AU  - Lin Xia
PY  - 2026
DA  - 2026/09/08
PB  - arXiv
DO  - 10.48550/arxiv.2609.08208
UR  - https://arxiv.org/abs/2609.08208
AB  - 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 ^39K condensate with 1.2×10^5 atoms after evaporative cooling in our optical trap.
ER  -