Violating Bell's Inequality with Remotely-Connected Superconducting Qubits

ORAL

Abstract

Quantum communication relies on the efficient generation of entanglement between remote quantum nodes, due to entanglement's key role in achieving and verifying secure communications. Remote entanglement has been realized using a number of different probabilistic schemes, but deterministic remote entanglement has only recently been demonstrated, using a variety of superconducting circuit approaches. However, the deterministic violation of a Bell inequality, a strong measure of quantum correlation, has not to date been demonstrated in a superconducting quantum communication architecture, in part because achieving sufficiently strong correlation requires fast and accurate control of the emission and capture of the entangling photons. Here we present a simple and robust architecture for achieving this benchmark result in a superconducting system.

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Presenters

  • Youpeng Zhong

    University of Chicago, Institute for Molecular Engineering, University of Chicago

Authors

  • Youpeng Zhong

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Hung-Shen Chang

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Kevin Satzinger

    Physics, University of California, Santa Barbara, University of California, Santa Barbara, Department of Physics, University of California, Santa Barbara, Department of Physics, Univerity of California, Santa Barbara, UC Santa Barbara; University of Chicago, Google Inc - Santa Barbara

  • Ming-Han Chou

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Audrey Bienfait

    Institute for Molecular Engineering, University of Chicago, University of Chicago

  • Christopher Conner

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Etienne Dumur

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Joel Grebel

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • Gregory A Peairs

    University of Chicago, Physics, University of California, Santa Barbara, University of California, Santa Barbara, Department of Physics, University of California, Santa Barbara, Department of Physics, Univerity of California, Santa Barbara, UC Santa Barbara; University of Chicago

  • Rhys G Povey

    University of Chicago, Institute for Molecular Engineering, University of Chicago

  • David Schuster

    University of Chicago, The University of Chicago, Physics, University of Chicago, Department of Physics, University of Chicago

  • Andrew N Cleland

    University of Chicago, Institute for Molecular Engineering, University of Chicago