Ion-Trap Inspired Entangling Gate for Superconducting Qubits

ORAL

Abstract

High-fidelity gates entangling multiple qubits can be an invaluable resource for implementing efficient error correcting quantum codes. Trapped-ion qubits are routinely entangled with a high degree of connectivity with fidelity greater than 99% using the Mølmer-Sørensen gate. Multi-partite entanglement is mediated through the interaction of many qubits with a shared phonon mode combined with two-photon transitions induced by bi-chromatic fields. In this talk, we present experimental progress on developing an analogous protocol for entangling two superconducting qubits using a shared microwave photon mode. Such functionality can be extended to multi-qubit entanglement and harnessed for classical qubit stabilization feedback.

*This work was funded by the Army Research Office and L’Oréal USA For Women in Science Fellowship Program.

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Presenters

  • Marie Lu

    • Physics, Univ of California -- Berkeley
    • Physics, Univ of California - Berkeley

Authors

  • Sydney Schreppler

    • Physics, Univ of California -- Berkeley
    • Physics, Univ of California - Berkeley

  • Marie Lu

    • Physics, Univ of California -- Berkeley
    • Physics, Univ of California - Berkeley

  • Lukas Buchmann

    • Physics, Aarhus Univ
    • Physics, Aarhus University

  • Felix Motzoi

    • Theoretical Physics, Saarland University
    • Physics, Aarhus Univ
    • University of Arhus

  • Irfan Siddiqi

    • Univ of California - Berkeley
    • Department of Physics, University of California Berkeley
    • Department of Physics, University of California, Berkeley
    • University of California Berkeley
    • Univ of California – Berkeley
    • Physics, Univ of California -- Berkeley
    • Physics, Univ of California - Berkeley
    • University of California - Berkeley