Dual-species Bose-Einstein condensate of (87)Rb and (133)Cs

McCarron, D.J.; Cho, H.W.; Jenkin, D.L.; Koeppinger, M.P.; Cornish, S.L.

doi:10.1103/physreva.84.011603

Dual-species Bose-Einstein condensate of (87)Rb and (133)Cs

McCarron, D.J.; Cho, H.W.; Jenkin, D.L.; Koeppinger, M.P.; Cornish, S.L.

Authors

D.J. McCarron

H.W. Cho

D.L. Jenkin

M.P. Koeppinger

Professor Simon Cornish s.l.cornish@durham.ac.uk
Professor

Abstract

We report the formation of a dual-species Bose-Einstein condensate of 87Rb and 133Cs in the same trapping potential. Our method exploits the efficient sympathetic cooling of 133Cs via elastic collisions with 87Rb, initially in a magnetic quadrupole trap and subsequently in a levitated optical trap. The two condensates each contain up to 2×104 atoms and exhibit a striking phase separation, revealing the mixture to be immiscible due to strong repulsive interspecies interactions. Sacrificing all the 87Rb during the cooling, we create single-species 133Cs condensates of up to 6×104 atoms.

Citation

McCarron, D., Cho, H., Jenkin, D., Koeppinger, M., & Cornish, S. (2011). Dual-species Bose-Einstein condensate of (87)Rb and (133)Cs. Physical Review A, 84(1), Article 011603. https://doi.org/10.1103/physreva.84.011603

Journal Article Type	Article
Publication Date	Jul 1, 2011
Deposit Date	Jan 23, 2012
Publicly Available Date	Nov 27, 2012
Journal	Physical Review A
Print ISSN	1050-2947
Electronic ISSN	1094-1622
Publisher	American Physical Society
Peer Reviewed	Peer Reviewed
Volume	84
Issue	1
Article Number	011603
DOI	https://doi.org/10.1103/physreva.84.011603