A quantum degenerate Bose-Fermi mixture of 41K and 6Li

• Verfasst von: Wu, Yu-Ping [VerfasserIn]
• Verfasst von: Yao, Xing-Can [VerfasserIn]
• Verfasst von: Pan, Jian-Wei [VerfasserIn]
• Titel: A quantum degenerate Bose-Fermi mixture of 41K and 6Li
• Verf.angabe: Yu-Ping Wu, Xing-Can Yao, Hao-Ze Chen, Xiang-Pei Liu, Xiao-Qiong Wang, Yu-Ao Chen and Jian-Wei Pan
• E-Jahr: 2017
• Jahr: 7 April 2017
• Teil: volume:50
• Teil: year:2017
• Teil: number:9
• Teil: elocationid:094001
• Fussnoten: Die Zahlen 41 und 6 sind im Titel hochgestellt ; Gesehen am 18.10.2018
• Titel Quelle: Enthalten in: Journal of physics / B
• Ort Quelle: Bristol : IOP Publ., 1968
• Jahr Quelle: 2017
• Band/Heft Quelle: 50(2017), 9, Artikel-ID 094001
• ISSN Quelle: 1361-6455
• DOI: doi:10.1088/1361-6455/aa658b
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1582071225

Abstract

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 a 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 an 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 × 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 × 10 5 at 0.25 Fermi temperature.