Journal
PHYSICAL REVIEW A
Volume 79, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevA.79.063631
Keywords
atom-photon collisions; Bose-Einstein condensation; magneto-optical effects; radiation pressure; rubidium
Categories
Funding
- ONR
- ODNI
- ARO
- DARPA OLE program
- NSF
- NIST/NRC
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We describe an apparatus for quickly and simply producing Rb-87 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 N approximate to 2x10(6) atoms every 16 s.
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