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

Dirk R Englund / Matthew Trusheim / Laura Kim / Stefan Krastanov / Hamza Raniwala / Hanfeng Wang

Departments: Dept of Electrical Engineering & Computer Science, Institute for Soldier Nanotechnologies, Electrical Eng & Computer Sci
Technology Areas: Electronics & Photonics: Photonics, Quantum Technology
Impact Areas: Advanced Materials

  • room-temperature coherent spin-photon interface and programmable spin arrays for scalable quantum repeaters
    United States of America | Published application

License this technology

Interested in this technology? Connect with our experienced licensing team to initiate the process.

Sign up for technology updates

Sign up now to receive the latest updates on cutting-edge technologies and innovations.