Distribution of quantum information between an atom and two photons

B. Weber

Published Mar 1, 2009• 0 citations

Abstract

This thesis documents the distribution of an entangled state between a single atom trapped in the mode of a high-finesse optical cavity and two subsequently emitted photons. The long atom trapping times achieved in the system together with the high photon collection efficiency of the cavity make the applied protocol in principle deterministic. To verify and characterize the entanglement of the two emitted photons, the violation of a Bell inequality was observed and a full quantum state tomography was performed. The ability to efficiently transfer quantum information between the atom and the two photons reflects the advantages of high-finesse cavities as quantum interfaces in future quantum networks.

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