Double species Bose-Einstein condensate with tunable interspecies interactions

G. Thalhammer*, Giovanni Barontini, L. De Sarlo, J. Catani, F. Minardi, M. Inguscio

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

306 Citations (Scopus)


We produce Bose-Einstein condensates of two different species, Rb87 and K41, in an optical dipole trap in proximity of interspecies Feshbach resonances. We discover and characterize two Feshbach resonances, located around 35 and 79G, by observing the three-body losses and the elastic cross section. The narrower resonance is exploited to create a double species condensate with tunable interactions. Our system opens the way to the exploration of double species Mott insulators and, more in general, of the quantum phase diagram of the two-species Bose-Hubbard model.

Original languageEnglish
Article number210402
JournalPhysical Review Letters
Issue number21
Publication statusPublished - 29 May 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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