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

McCarron, D.J. and Cho, H.W. and Jenkin, D.L. and Koeppinger, M.P. and Cornish, S.L. (2011) 'Dual-species Bose-Einstein condensate of 87Rb and 133Cs.', Physical review A., 84 (1). 011603.

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.

Item Type:Article
Full text:PDF - Published Version (415Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1103/PhysRevA.84.011603
Publisher statement:© 2011 The American Physical Society
Record Created:27 Nov 2012 11:20
Last Modified:27 Nov 2012 12:25

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