Doppler cooling to the quantum limit.

  title={Doppler cooling to the quantum limit.},
  author={Maryvonne Chalony and Anders Kastberg and Bruce G. Klappauf and David Wilkowski},
  journal={Physical review letters},
  volume={107 24},
Doppler cooling on a narrow transition is limited by the noise of single scattering events. It shows novel features, which are in sharp contrast with cooling on a broad transition, such as a non-gaussian momentum distribution, and divergence of its mean square value close to the resonance. We have observed those features using 1D cooling on an intercombination transition in strontium, and compared the measurements with theoretical predictions and Monte Carlo simulations. We also find that for… 

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