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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).

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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