Atomic flux pulses for a superconducting quantum processor, part 2: performance and benefits of net-zero conditional-phase gates

ORAL

Abstract

We use a novel pulse shape, named net-zero, to realize a coherence limited, codeword-triggered, and repeatable conditional-phase (CZ) gate between transmon qubits in a circuit QED processor. We characterize the performance of both conventional and net-zero CZ flux pulses and quantify specific error sources such as leakage, dephasing, relaxation, non-markovianity, and coherent errors. We compare experimental results to simulations that include realistic modeling of these effects.

–

Presenters

  • Michiel Adriaan Rol

    QuTech and Kavli Institute of Nanoscience, Delft University of Technology, QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands

Authors

  • Michiel Adriaan Rol

    QuTech and Kavli Institute of Nanoscience, Delft University of Technology, QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands

  • Filip K Malinowski

    QuTech and Kavli Institute of Nanoscience, Delft University of Technology

  • Francesco Battistel

    QuTech, Delft University of Technology

  • Brian M Tarasinski

    QuTech and Kavli Institute of Nanoscience, Delft University of Technology, QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands, QuTech and Kavli Institute of Nanoscience Delft, Delft University of Technology

  • Barbara Terhal

    QuTech, Delft University of Technology, TU Delft

  • Leonardo DiCarlo

    QuTech and Kavli Institute of Nanoscience, Delft University of Technology, QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands, QuTech and Kavli Institute of Nanoscience Delft, Delft University of Technology