Southwest Quantum Information and TechnologyTwelfth Annual Meeting, February 18-21, 2010
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All Abstracts | Poster Abstracts | Talk Abstracts | Tutorial Abstracts Single-Atom Single-Photon Quantum InterfaceDavid Moehring, Sandia National Laboratories (Session 6 : Saturday from 9:15-9:45) Abstract. We report on the implementation of a deterministic protocol where a single rubidium atom trapped within a high-finesse optical cavity is entangled with a single emitted photon. After a chosen time, the atomic state is mapped onto a second photon, thus generating an entangled photon pair. Compared to previous experiments, the long trapping times of exactly one atom in the mode of the cavity allow for 10^5 times more entangled photons per atom. The entanglement is verified by a Bell inequality measurement and via quantum state tomography, both showing a clear violation of classical physics. The combination of two independent atom-cavity systems may further allow for the efficient generation of remote-atom entanglement in the near future. *The presented work was completed at the Max Planck Institute of Quantum Optics in the group of Gerhard Rempe. |