Fluxonium two-qubit gate with simultaneous Raman transitions

ORAL

Abstract

Quantum computing applications rely on high-coherence qubits with two-qubit gates to control them. The Fluxonium circuit is a superconducting qubit with favorable coherence properties, but unlike the transmon qubit, there has been no experimental demonstration of a two-qubit gate. We propose a new scheme using a cavity to couple two fluxonium qubits and drive a two-qubit swap gate. We report experimental progress towards driving simultaneous Raman transitions in the two qubits, utilizing the coupling cavity and the lambda energy level structure of fluxonium. This work expands the available coherent controls for the fluxonium circuit and increases its viability for quantum computing as well for interesting quantum simulation applications.

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Presenters

  • Jacob Bryon

    Princeton University

Authors

  • Jacob Bryon

    Princeton University

  • Andrei Vrajitoarea

    Princeton University

  • Yidan Wang

    University of Maryland, College Park, University of Maryland

  • Przemyslaw Bienias

    University of Maryland, College Park, Joint Quantum Institute, University of Maryland, College Park, MD 20742, USA, University of Maryland

  • Rex Lundgren

    University of Maryland, University of Maryland, College Park, Joint Quantum Institute, University of Maryland / National Institute of Standards and Technology

  • Ron Belyansky

    University of Maryland, University of Maryland, College Park, Joint Quantum Institute, University of Maryland, College Park, MD 20742, USA

  • Alexey V Gorshkov

    National Institute of Standard and Technology, JQI-NIST, National Institute of Standards and Technology, University of Maryland, College Park, JQI/QuICS, NIST/University of Maryland, College Park and KITP, UCSB, Joint Center for Quantum Information and Computer Science, NIST/University of Maryland, College Park, MD 20742, USA, University of Maryland

  • Alicia Kollar

    University of Maryland, College Park, Joint Quantum Institute, University of Maryland, College Park, MD 20742, USA, University of Maryland

  • Andrew Houck

    Princeton University, Electrical Engineering, Princeton University, Department of Electrical Engineering, Princeton University