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Publication Citation: Rapid Production of ^87^Rb BECs in a Combined Magnetic and Optical Potential

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Author(s): Yu-Ju Lin; Abigail R. Perry; Robert L. Compton; Ian B. Spielman; James V. Porto;
Title: Rapid Production of ^87^Rb BECs in a Combined Magnetic and Optical Potential
Published: August 31, 2009
Abstract: We describe an apparatus for quickly and simply producing ^87^Rb 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 atom 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 ~ 2 × 10^6^ atoms every 16 seconds.
Citation: Physical Review A (Atomic, Molecular and Optical Physics)
Volume: 79
Keywords: Bose-Einstein condensates, evaporative cooling
Research Areas: Bose Einstein Condensation
PDF version: PDF Document Click here to retrieve PDF version of paper (318KB)