| Autor: |
Wu, Yu-Ping, Yao, Xing-Can, Chen, Hao-Ze, Liu, Xiang-Pei, Wang, Xiao-Qiong, Chen, Yu-Ao, Pan, Jian-Wei |
| Rok vydání: |
2017 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| DOI: |
10.1088/1361-6455/aa658b |
| Popis: |
We report a new apparatus for the study of two-species quantum degenerate mixture of $^{41}$K and $^6$Li atoms. We develop and combine several advanced cooling techniques to achieve both large atom number and high phase space density of the two-species atom clouds. Furthermore, we build a high-efficiency two-species magnetic transport system to transfer atom clouds from the 3D magneto-optical-trap chamber to a full glass science chamber of extreme high vacuum environment and good optical access. We perform a forced radio-frequency evaporative cooling for $^{41}$K atoms while the $^6$Li atoms are sympathetically cooled in an optically-plugged magnetic trap. Finally, we achieve the simultaneous quantum degeneracy for the $^{41}$K and $^6$Li atoms. The Bose-Einstein condensate of $^{41}$K has 1.4$\times$10$^5$ atoms with a condensate fraction of about 62%, while the degenerate Fermi gas of $^6$Li has a total atom number of 5.4$\times$10$^5$ at 0.25 Fermi temperature. |
| Databáze: |
arXiv |
| Externí odkaz: |
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