Bose-Einstein condensate in gases of rare atomic species

@article{Sugawa2011BoseEinsteinCI,
  title={Bose-Einstein condensate in gases of rare atomic species},
  author={Seiji Sugawa and Rekishu Yamazaki and Shintaro Taie and Yoshiro Takahashi},
  journal={Physical Review A},
  year={2011},
  volume={84},
  pages={011610}
}
We report on the successful extension of production of a Bose-Einstein condensate (BEC) to a rare atomic species. Despite its low natural abundance of 0.13%, {sup 168}Yb is directly evaporatively cooled down to a BEC. Our successful demonstration encourages attempts to obtain quantum gases of radioactive atoms, which extends the possibility of quantum many-body physics and precision measurement. Moreover, a stable binary mixture of {sup 168}Yb BEC and {sup 174}Yb BEC is successfully formed. 

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