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Towards quantum communication and entanglement distribution using solid-state defects integrated into a diamond nanophotonic system

POSTER

Abstract

Silicon vacancy (SiV) centers integrated into diamond nanophotonic crystal cavities provide a high-efficiency spin-photon interface, strong spin-photon interaction, and access to auxiliary memory qubits. This platform recently has demonstrated memory enhanced quantum communication, efficient generation of shaped single photons, and high-fidelity gates between the SiV electron and the auxiliary 29Si nuclear spin, all using a single quantum network node. In this work, I will report on progress towards realizing a quantum link constituted by two SiV-based quantum nodes spatially separated by 20 meters and connected via optical fiber. Specifically, I will discuss methods of entanglement distribution, entanglement purification, and progress towards realizing a full quantum-repeater architecture.

Presenters

  • Can M Knaut

    Harvard University

Authors

  • Can M Knaut

    Harvard University

  • Daniel Assumpcao

    Harvard University

  • Aziza Suleymanzade

    University of Chicago, Harvard University

  • Yan-Cheng Wei

    Harvard University

  • Erik Knall

    Harvard University

  • Pieter-Jan C Stas

    Harvard University

  • Yan Qi Huan

    Harvard University

  • Bartholomeus Machielse

    Harvard University

  • Denis D Sukachev

    Harvard University

  • Mihir K Bhaskar

    Harvard University

  • David Levonian

    Harvard University

  • Hongkun Park

    Harvard University

  • Marko Loncar

    Harvard University, Harvard

  • Mikhail Lukin

    Harvard University