Nanophotonic Quantum Registers based on Silicon Vacancy Centers in Diamond

ORAL

Abstract

The development of scalable quantum technologies requires robust and well controlled quantum systems. Integrated solid-state devices are particularly promising because lithographically defined systems offer a route toward mass production. Recent progress in diamond nanofabrication has opened the door to unprecedented control of an optically accessible solid-state quantum memory, the silicon vacancy center in diamond. Integration of this point defect into a nanophotonic cavity combined with efficient photon detection recently enabled a proof-of-principle demonstration of memory enhanced quantum communication. In this talk, I will discuss how interfacing with nearby nuclear spins as well as improved device design and fabrication continue to push this system’s capabilities as a platform for foundational demonstrations of memory based quantum communication.

*This work was supported by the NSF, CUA, DoD/ARO DURIP, AFOSR MURI, ONR MURI, ARL, and a Vannevar Bush Faculty Fellowship. Devices were fabricated at Harvard CNS, NSF award no. 1541959. E.N.K. is supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. DGE1745303.

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Presenters

  • Erik Knall

    • Harvard University

Authors

  • Erik Knall

    • Harvard University

  • Mihir K Bhaskar

    • Harvard University

  • Christian Nguyen

    • Harvard University

  • Ralf Riedinger

    • Harvard University

  • Bartholomeus J Machielse

    • Harvard University

  • David Levonian

    • Harvard University

  • Pavel Stroganov

    • Harvard University

  • Denis D Sukachev

    • Harvard University

  • Hongkun Park

    • Harvard University
    • Chemistry and Chemical Biology, Physics, Harvard University

  • Marko Loncar

    • Harvard University
    • John A. Paulson School of Engineering and Applied Sciences, Harvard University

  • Mikhail Lukin

    • Harvard University
    • Physics, Harvard University