Quantum communication networks with superconducting qubits

ORAL

Abstract

Deterministic state transfer and remote entanglement with microwave photons has recently been demonstrated using different superconducting circuit approaches. More recently, a qubit-to-qubit transfer fidelity greater than 94% has been achieved in Ref. [1]. This experiment used gmon tunable couplers to control the coupling of the qubits to a 0.78 m long transmission line, achieving few nanosecond tuning speed and large tuning range, thereby allowing for the violation of Bell's inequality in a superconducting quantum communication architecture. In this talk, we examine the scalability of this architecture, and explore more complex quantum communication network designs and protocols.

[1] Y. P. Zhong et al, Nature Physics 15, 741-744 (2019).

*This work is supported by AFOSR MURI (FA9550-15-1-0029), UChicago MRSEC (NSF DMR-1420709), DOE, UChicago PNF via SHyNE (NNCI NSF -1542205), ARL (W911NF-15-2-0058), and ANL.

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Presenters

  • Youpeng Zhong

    • University of Chicago
    • Pritzker School of Molecular Engineering, University of Chicago

Authors

  • Youpeng Zhong

    • University of Chicago
    • Pritzker School of Molecular Engineering, University of Chicago

  • Audrey Bienfait

    • University of Chicago
    • Pritzker School of Molecular Engineering, University of Chicago

  • Hung-Shen Chang

    • University of Chicago
    • Pritzker School of Molecular Engineering, University of Chicago

  • Ming-Han Chou

    • University of Chicago
    • Pritzker School of Molecular Engineering, University of Chicago

  • Christopher R Conner

    • University of Chicago
    • Pritzker School of Molecular Engineering, University of Chicago

  • Etienne Dumur

    • Argonne National Laboratory; University of Chicago
    • Neel Institute, University Grenoble Alpes, CNRS
    • Argonne National Laboratory
    • University of Chicago; Argonne National Laboratory
    • Institute for Molecular Engineering, University of Chicago, Chicago IL 60637,USA

  • Joel Grebel

    • University of Chicago
    • Pritzker School of Molecular Engineering, University of Chicago

  • Rhys G Povey

    • University of Chicago
    • Pritzker School of Molecular Engineering, University of Chicago

  • David I Schuster

    • University of Chicago
    • Physics, University of Chicago
    • Department of Physics and the James Franck Institute, University of Chicago
    • The James Franck Institute and Department of Physics, University of Chicago
    • The James Franck Institute and Department of Physics, The University of Chicago

  • Andrew Cleland

    • University of Chicago
    • Argonne National Laboratory; University of Chicago
    • Pritzker School of Molecular Engineering, University of Chicago, Argonne National Laboratory
    • University of Chicago; Argonne National Laboratory