Bose-Einstein condensation of 87Rb in a levitated crossed dipole trap

Jenkin, D.L.; McCarron, D.J.; Koppinger, M.P.; Cho, H.W.; Hopkins, S.A.; Cornish, S.L.

doi:10.1140/epjd/e2011-10720-5

Bose-Einstein condensation of 87Rb in a levitated crossed dipole trap

Jenkin, D.L.; McCarron, D.J.; Koppinger, M.P.; Cho, H.W.; Hopkins, S.A.; Cornish, S.L.

Authors

D.L. Jenkin

D.J. McCarron

M.P. Koppinger

H.W. Cho

S.A. Hopkins

Professor Simon Cornish s.l.cornish@durham.ac.uk
Professor

Abstract

We report an apparatus and method capable of producing Bose-Einstein condensates (BECs) of ∼1 × 10687Rb 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.

Citation

Jenkin, D., McCarron, D., Koppinger, M., Cho, H., Hopkins, S., & Cornish, S. (2011). Bose-Einstein condensation of 87Rb in a levitated crossed dipole trap. The European Physical Journal D, 65(1-2), 11-18. https://doi.org/10.1140/epjd/e2011-10720-5

Journal Article Type	Article
Publication Date	Nov 1, 2011
Deposit Date	Jan 23, 2012
Publicly Available Date	Apr 12, 2013
Journal	European Physical Journal D
Print ISSN	1434-6060
Electronic ISSN	1434-6079
Publisher	Springer
Peer Reviewed	Peer Reviewed
Volume	65
Issue	1-2
Pages	11-18
DOI	https://doi.org/10.1140/epjd/e2011-10720-5