Fast cavity-enhanced atom detection with low noise and high fidelity

  title={Fast cavity-enhanced atom detection with low noise and high fidelity},
  author={Jon Goldwin and Michael Trupke and Joanna Kenner and Adrian Ratnapala and E. A. Hinds},
  journal={Nature Communications},
Cavity quantum electrodynamics describes the fundamental interactions between light and matter, and how they can be controlled by shaping the local environment. For example, optical microcavities allow high-efficiency detection and manipulation of single atoms. In this regime, fluctuations of atom number are on the order of the mean number, which can lead to signal fluctuations in excess of the noise on the incident probe field. Here we demonstrate, however, that nonlinearities and multi-atom… 

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