We report a new method for the production of Bose-Einstein condensates of
\$^133\$Cs and demonstrate the formation of a quantum degenerate mixture of
\$^87\$Rb and \$^133\$Cs. The approach exploits efficient sympathetic cooling
of \$^133\$Cs via \$^87\$Rb in a magnetic quadrupole trap prior to further
evaporative cooling in a levitated optical trap. Sacrificing all the \$^87\$Rb
during the cooling, we create single species \$^133\$Cs condensates of up to
\$6\times10^4\$ atoms. Tailoring the evaporation to retain some \$^87\$Rb, we
simultaneously create condensates of \$^87\$Rb and \$^133\$Cs in the same
trapping potential, each containing up to \$2\times10^4\$ atoms. We observe a
striking phase separation of the two species revealing the mixture to be
immiscible due to strong repulsive interspecies interactions.
%0 Journal Article
%1 McCarron2011Immiscibility
%A McCarron, D. J.
%A Cho, H. W.
%A Jenkin, D. L.
%A Köppinger, M. P.
%A Cornish, S. L.
%D 2011
%K bec, dipole-trap, mixtures
%T Immiscibility in a Quantum Degenerate Mixture of \$^87\$Rb and \$^133\$Cs
%U http://arxiv.org/abs/1102.1576
%X We report a new method for the production of Bose-Einstein condensates of
\$^133\$Cs and demonstrate the formation of a quantum degenerate mixture of
\$^87\$Rb and \$^133\$Cs. The approach exploits efficient sympathetic cooling
of \$^133\$Cs via \$^87\$Rb in a magnetic quadrupole trap prior to further
evaporative cooling in a levitated optical trap. Sacrificing all the \$^87\$Rb
during the cooling, we create single species \$^133\$Cs condensates of up to
\$6\times10^4\$ atoms. Tailoring the evaporation to retain some \$^87\$Rb, we
simultaneously create condensates of \$^87\$Rb and \$^133\$Cs in the same
trapping potential, each containing up to \$2\times10^4\$ atoms. We observe a
striking phase separation of the two species revealing the mixture to be
immiscible due to strong repulsive interspecies interactions.
@article{McCarron2011Immiscibility,
abstract = {We report a new method for the production of Bose-Einstein condensates of
\$^{133}\$Cs and demonstrate the formation of a quantum degenerate mixture of
\$^{87}\$Rb and \$^{133}\$Cs. The approach exploits efficient sympathetic cooling
of \$^{133}\$Cs via \$^{87}\$Rb in a magnetic quadrupole trap prior to further
evaporative cooling in a levitated optical trap. Sacrificing all the \$^{87}\$Rb
during the cooling, we create single species \$^{133}\$Cs condensates of up to
\$6\times10^{4}\$ atoms. Tailoring the evaporation to retain some \$^{87}\$Rb, we
simultaneously create condensates of \$^{87}\$Rb and \$^{133}\$Cs in the same
trapping potential, each containing up to \$2\times10^{4}\$ atoms. We observe a
striking phase separation of the two species revealing the mixture to be
immiscible due to strong repulsive interspecies interactions.},
added-at = {2019-02-26T15:22:34.000+0100},
archiveprefix = {arXiv},
author = {McCarron, D. J. and Cho, H. W. and Jenkin, D. L. and K\"{o}ppinger, M. P. and Cornish, S. L.},
biburl = {https://www.bibsonomy.org/bibtex/21101da917bd4c8b95462d16d89213b59/rspreeuw},
citeulike-article-id = {8797908},
citeulike-linkout-0 = {http://arxiv.org/abs/1102.1576},
citeulike-linkout-1 = {http://arxiv.org/pdf/1102.1576},
day = 9,
eprint = {1102.1576},
interhash = {b5a9f740627f99aef91016e6ac1328d4},
intrahash = {1101da917bd4c8b95462d16d89213b59},
keywords = {bec, dipole-trap, mixtures},
month = feb,
posted-at = {2011-02-10 08:47:52},
priority = {2},
timestamp = {2019-02-26T15:22:34.000+0100},
title = {Immiscibility in a Quantum Degenerate Mixture of \$^{87}\$Rb and \$^{133}\$Cs},
url = {http://arxiv.org/abs/1102.1576},
year = 2011
}