Rapid production of R87b Bose-Einstein condensates in a combined magnetic and optical potential

Y.-J. Lin, A. R. Perry, R. L. Compton, I. B. Spielman, and J. V. Porto
Phys. Rev. A 79, 063631 – Published 29 June 2009

Abstract

We describe an apparatus for quickly and simply producing R87b Bose-Einstein condensates. It is based on a magnetic quadrupole trap and a red-detuned optical dipole trap. We collect atoms in a magneto-optical trap (MOT) and then capture the atoms in a magnetic quadrupole trap and force rf evaporation. We then transfer the resulting cold dense cloud into a spatially mode-matched optical dipole trap by lowering the quadrupole field gradient to below gravity. This technique combines the efficient capture of atoms from a MOT into a magnetic trap with the rapid evaporation of optical dipole traps; the approach is insensitive to the peak quadrupole gradient and the precise trapping beam waist. Our system reliably produces a condensate with N2×106 atoms every 16 s.

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  • Received 2 April 2009

DOI:https://doi.org/10.1103/PhysRevA.79.063631

©2009 American Physical Society

Authors & Affiliations

Y.-J. Lin, A. R. Perry, R. L. Compton, I. B. Spielman*, and J. V. Porto

  • Joint Quantum Institute, National Institute of Standards and Technology and University of Maryland, Gaithersburg, Maryland 20899, USA

  • *ian.spielman@nist.gov
  • trey@nist.gov

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Vol. 79, Iss. 6 — June 2009

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