A double species Na-23 and Rb-87 Bose-Einstein condensate with tunable miscibility via an interspecies Feshbach resonance
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AbstractWe have realized a dual-species Bose-Einstein condensate (BEC) of Na-23 and Rb-87 atoms and observed its immiscibility. Because of the favorable background intra-and inter-species scattering lengths, stable condensates can be obtained via efficient evaporative cooling and sympathetic cooling without the need for fine tuning of the interactions. Our system thus provides a clean platform for studying inter-species interactions-driven effects in superfluid mixtures. With a Feshbach resonance, we have successfully created double BECs with largely tunable inter-species interactions and studied the miscible-immiscible phase transition.
All Author(s) ListWang FD, Li XK, Xiong DZ, Wang DJ
Journal nameJournal of Physics B: Atomic, Molecular and Optical Physics
Volume Number49
Issue Number1
LanguagesEnglish-United Kingdom
Keywordsdouble BEC; interspecies Feshbach resonance; tunable interaction
Web of Science Subject CategoriesOptics; Physics; Physics, Atomic, Molecular & Chemical

Last updated on 2021-16-09 at 00:59