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Fast parametrically driven entangling gates in superconducting circuits using a tunable coupler

ORAL

Abstract

A major challenge in realizing scalable quantum computers is the optimization of two-qubit entangling gates. In current superconducting architectures, ZZ crosstalk introduces unwanted entanglement while slow gates push fidelities down due to decoherence. It is thus desirable to make entangling gates as fast as possible while maintaining control over multi-qubit interactions. In this work we demonstrate a tunable coupler that can be flux biased to mitigate ZZ crosstalk while allowing fast parametrically driven two-qubit entangling gates between far-detuned fixed-frequency transmons.

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Presenters

  • Charles Guinn

    Princeton University

Authors

  • Charles Guinn

    Princeton University

  • Sara F Sussman

    Princeton University

  • Pranav S Mundada

    Q-CTRL, Princeton University

  • Andrei Vrajitoarea

    Princeton University, University of Chicago

  • Catherine Leroux

    Universite de Sherbrooke, Institut quantique & Département de Physique, Université de Sherbrooke, Sherbrooke J1K2R1, Quebec, Canada

  • Alexander P Place

    Princeton University

  • Camille Le Calonnec

    Universite de Sherbrooke

  • Agustin Di Paolo

    Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA, Universite de Sherbrooke, MIT, Massachusetts Institute of Technology MIT, Research Laboratory of Electronics, Massachusetts Institute of Technology, Massachusetts Institute of Technology

  • Alexandru Petrescu

    Universite de Sherbrooke

  • Alexandre Blais

    Universite de Sherbrooke, Institut quantique & Département de Physique, Université de Sherbrooke, Sherbrooke J1K2R1, Quebec, Canada

  • Andrew A Houck

    Princeton University