Send to

Choose Destination
Phys Rev Lett. 2007 Jul 6;99(1):010403. Epub 2007 Jul 6.

39K Bose-Einstein condensate with tunable interactions.

Author information

LENS and Dipartimento di Fisica, Università di Firenze, INFN and CNR-INFM, 50019 Sesto Fiorentino, Italy.


We produce a Bose-Einstein condensate of 39K atoms. Condensation of this species with a naturally small and negative scattering length is achieved by a combination of sympathetic cooling with 87Rb and direct evaporation, exploiting the magnetic tuning of both inter- and intraspecies interactions at Feshbach resonances. We explore the tunability of the self-interactions by studying the expansion and the stability of the condensate. We find that a 39K condensate is interesting for future experiments requiring a weakly-interacting Bose gas.

Supplemental Content

Full text links

Icon for American Physical Society
Loading ...
Support Center