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.

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 - Atomic, Molecular, and Optical Physics
• 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
• Public URL: https://durham-repository.worktribe.com/output/1520954