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Photonic Router Aids Quantum Computing

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REHOVOT, Israel, July 15, 2014 — A router capable of guiding single photons could overcome challenges associated with building quantum computers. A team from the Weizmann Institute of Science developed the device, which is based on a single atom connected to a fiber-coupled, chip-based microresonator. Depending on the atom’s state, it either transmits or reflects incoming photons. With the atom in one state, the researchers said, a photon originating from the right will continue on its path toward the left. Alternately, a photon coming from the left is reflected back; this also reverses the atomic state. ...Read full article

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    Published: July 2014
    Glossary
    transistor
    An electronic device consisting of a semiconductor material, generally germanium or silicon, and used for rectification, amplification and switching. Its mode of operation utilizes transmission across the junction of the donor electrons and holes.
    atomsCommunicationsEuropefiber opticsIsraelLight Sourcesoptical resonatorsphotonsquantum computersResearch & TechnologyroutersuperpositiontransistorWeizmann Institute of ScienceDr. Barak DayanQuantum Optics groupBenoziyo Endowment Fund for the Advancement of Science

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