Frequency-Modulated Microwave Drives for Single- and Two-Qubit Gates

ORAL

Abstract

High-fidelity single- and two-qubit gates are one of the fundamental requirements in the pursuit of large-scale fault-tolerant quantum computing. In this work, we examine the architecture of fixed-frequency superconducting qubits and couplers driven by microwaves. We introduce a new type of gate where the microwave drive frequency is modulated through deliberate design, a technique also known as chirping. By leveraging Floquet theory, we analyze and design these drives for optimal performance. Our method is validated through numerical simulations, and we discuss progress toward realizing high-fidelity gates using frequency-modulated microwave drives.

*This research was funded in part by the Army Research Office under Award Number W911NF-23-1-0045; in part by the U.S. Department of Energy, Office of Science, National Quantum Information Science Research Centers, Quantum Systems Accelerator; and in part under Air Force Contract No. FA8702-15-D-0001. The views and conclusions contained herein are those of the authors and should not be interpreted as necessarily representing the official policies or endorsements, either expressed or implied, of the U.S. Government.

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Presenters

  • Qi Ding

    • Massachusetts Institute of Technology

Authors

  • Qi Ding

    • Massachusetts Institute of Technology

  • Agustin Di Paolo

    • Google LLC

  • Shoumik Chowdhury

    • Massachusetts Institute of Technology (MIT)
    • Massachusetts Institute of Technology

  • Réouven Assouly

    • Massachussets Institute of Technology
    • Ecole Normale Superieure de Lyon

  • Kyle Serniak

    • MIT Lincoln Laboratory
    • Lincoln Laboratory, Massachusetts Institute of Technology

  • Jeffrey A Grover

    • Massachusetts Institute of Technology

  • Alan V Oppenheim

    • Massachusetts Institute of Technology

  • William D Oliver

    • Massachusetts Institute of Technology
    • Massachusetts Institute of Technology (MIT)