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Telecom quantum networking with a silicon-vacancy center in diamond

ORAL

Abstract

Silicon-vacancy centers in diamond (SiVs) are a promising platform for quantum information applications. Efficient spin photon interfaces realized by coupling SiVs to photonic crystal cavities have enabled demonstrations of memory enhanced quantum key distribution, efficient single photon generation, and entanglement of optically distinguishable emitters. In particular, long electronic spin coherence times and access to nuclear ancilla qubits make SiVs an ideal candidate for use as memories in quantum networks. However, the SiV's 737 nm optical transition experiences strong attenuation in optical fibers, restricting the ability to transmit quantum states over long distances. In this talk, we report on progress towards deployed quantum networking with SiVs in a metropolitan-scale fiber network. We utilize low-noise quantum frequency conversion to realize an interface between SiVs and telecommunication-wavelength photons in the O-band, an important step towards the realization of quantum repeaters based on solid state quantum emitters.

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Presenters

  • Maddie Sutula

    Harvard University

Authors

  • Maddie Sutula

    Harvard University

  • Eric A Bersin

    Massachusetts Institute of Technology MIT

  • Yan Qi Huan

    Harvard University

  • Daniel R Assumpcao

    Harvard University

  • Yan-Cheng Wei

    Harvard University

  • Pieter-Jan C Stas

    Harvard University

  • Aziza Suleymanzade

    Harvard University, University of Chicago

  • Can M Knaut

    Harvard University

  • Erik Knall

    Harvard University

  • Bartholomeus Machielse

    Harvard University, AWS Center for Quantum Networking, AWS Center for Quantum Networking, AWS CQN, Harvard University, AWS Center for Quantum Networking, Harvard University, Harvard University

  • David Levonian

    Harvard University, AWS Center for Quantum Networking, AWS CQN, Harvard University, AWS Center for Quantum Networking, Harvard University

  • Mihir K Bhaskar

    Harvard University, AWS Center for Quantum Networking, AWS CQN, Harvard University, AWS Center for Quantum Networking, Harvard University

  • Denis D Sukachev

    Harvard University, AWS Center for Quantum Networking, AWS CQN, Harvard University, AWS Center for Quantum Networking, Harvard University

  • Neil Sinclair

    Harvard University; California Institute of Technology, Harvard University

  • Hongkun Park

    Harvard University

  • Marko Lon?ar

    Harvard University, Harvard

  • Mikhail D Lukin

    Harvard University