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

Published

August 31, 2009

Author(s)

Yu-Ju Lin, Abigail R. Perry, Robert L. Compton, Ian B. Spielman, James V. Porto

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

Pub Type

Journals

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Keywords

Bose-Einstein condensates, evaporative cooling

Citation

Lin, Y. , Perry, A. , Compton, R. , Spielman, I. and Porto, J. (2009), Rapid Production of ^87^Rb BECs in a Combined Magnetic and Optical Potential, Physical Review A (Atomic, Molecular and Optical Physics), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=902586 (Accessed October 9, 2025)