Beyond optical molasses: 3D raman sideband cooling of atomic cesium to high phase-space density

  title={Beyond optical molasses: 3D raman sideband cooling of atomic cesium to high phase-space density},
  author={Kerman and Vuletic and Chin and M Chu},
  journal={Physical review letters},
  volume={84 3},
We demonstrate a simple, general purpose method to cool neutral atoms. A sample containing 3x10(8) cesium atoms prepared in a magneto-optical trap is cooled and simultaneously spin polarized in 10 ms at a density of 1.1x10(11) cm (-3) to a phase space density nlambda(3)(dB) = 1/500, which is almost 3 orders of magnitude higher than attainable in free space with optical molasses. The technique is based on 3D degenerate Raman sideband cooling in optical lattices and remains efficient even at… CONTINUE READING
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