2011/04/04 by D. L. Jenkin, D. J. McCarron, M. P. Köppinger +4 · 1 citation
Physics and Astronomy · #Advanced Frequency and Time Standards #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Condensation #Dipole #Doppler cooling #Evaporation #Magnetic trap #Quadrupole #Trap (plumbing) #physics.atom-ph
paper · pdf · doi:10.1140/epjd/e2011-10720-5
arxiv created 2011/04/04 · openalex publication_date 2011/04/27 · arxiv updated 2015/05/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We report an apparatus and method capable of producing Bose-Einstein condensates (BECs) of ~1x106 87Rb atoms, and ultimately designed for sympathetic cooling of 133Cs and the creation of ultracold RbCs molecules. The method combines several elements: i) the large recapture of a magnetic quadrupole trap from a magneto-optical trap, ii) efficient forced RF evaporation in such a magnetic trap, iii) the gain in phase-space density obtained when loading the magnetically trapped atoms into a far red-detuned optical dipole trap and iv) efficient evaporation to BEC within the dipole trap. We demonstrate that the system is capable of sympathetically cooling the |F=1,mF=-1> and |1,0> sublevels with |1,+1> atoms. Finally we discuss the applicability of the method to sympathetic cooling of 133Cs with 87Rb.