A Single-Photon Server with Just One Atom

In this paper, we present an experiment in which a single neutral atom trapped in a cavity is used to generate single photons in a controlled way. The quality of these photons is such that they could be used for quantum information processing. Our setup could therefore operate as a single-photon server for such experiments. We prepare our system by loading 85Rb atoms into a magneto-optical trap. From here, the atoms are transported by a dipole trap into the cavity.

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