Room-Temperature Coherent Spin-Photon Interface
Large-scale control over thousands of quantum emitters desired by quantum network technology is limited by power consumption and cross-talk in microwave techniques. A quantum repeater architecture based on densely-packed diamond color centers (CCs) in a programmable electrode array avoids these limits. This electric-field programmable spin array ( eFPSA) enables high-speed spin control of individual CCs with low cross-talk and power dissipation. Integrated in a slow-light waveguide for efficient optical coupling, the eFPSA serves as a quantum interface for optically mediated entanglement. This eFPSA architecture operates with a higher entanglement generation rate than a routing tree design for up to thousands of qubits. This enable high fidelity control of dense quantum emitter arrays for scalable networking.
Researchers
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room-temperature coherent spin-photon interface and programmable spin arrays for scalable quantum repeaters
United States of America | Published application
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