Observation of a single atom in a magneto-optical trap.

  title={Observation of a single atom in a magneto-optical trap.},
  author={Z Hu and H. Jeff Kimble},
  journal={Optics letters},
  volume={19 22},
Fluorescence from Cs atoms in a magneto-optical trap is detected under conditions of very low atomic density. Discrete steps are observed in the fluorescent signal versus time and are associated with the arrival and departure of individual trapped atoms. Histograms of the frequency of occurrence of a given level of fluorescence exhibit a series of uniformly spaced peaks that are attributed to the presence of N = 0, 1, 2 atoms in the trap. 

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Kimble, in Cavity Q.E.D., Advances in Atomic, Molecular, and Optical Physics, Supplement 2, P

  • H J.
  • 1994

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