Mode Hybridization Analysis of Bus Resonators for a Superconducting Multi-Qubit Chip

ORAL

Abstract

We present an effective numerical method to analyze the mode hybridization in a multi-transmon circuit QED chip. Surface code, a promising architecture for fault-tolerant quantum computing, requires qubits with connectivity to all nearest neighbors. This extensive interconnectivity together with strong coupling between qubits and resonators causes mode hybridization. A complete analysis of the chip is needed in these conditions to accurately predict the loaded frequency of the bus resonators and thereby also the two-qubit gate time. We present and experimentally verify a simulation method for analyzing the complete chip combining finite-element electromagnetic simulation with numerical circuit simulation for accurate and fast computation. This research is funded by Intel Corporation and IARPA (U.S. Army Research Office grant W911NF-16-1-0071).

*This research is funded by Intel Corporation and IARPA (U.S. Army Research Office grant W911NF-16-1-0071).

–

Presenters

  • Nadia Haider

    • QuTech and TNO
    • QuTech and Netherlands Organisation for Scientific Research (TNO), Delft, The Netherlands

Authors

  • Nadia Haider

    • QuTech and TNO
    • QuTech and Netherlands Organisation for Scientific Research (TNO), Delft, The Netherlands

  • Jonathan Gnanadhas

    • QuTech, Netherlands Organisation for Applied Scientific Research (TNO) and Delft University of Technology, Delft, The Netherlands

  • Marc Beekman

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

  • Rene Vollmer

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

  • Nandini Muthusubramanian

    • 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

  • Roman Caudillo

    • Components Research, Intel
    • Components Research, Intel Corporation, 2501 NW 229th Avenue, Hillsboro, OR, 97124, USA

  • Alessandro Bruno

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

  • David Michalak

    • Components Research, Intel
    • Components Research, Intel Corporation, 2501 NW 229th Avenue, Hillsboro, OR, 97124, USA

  • Filip Malinowski

    • Delft University of Technology
    • University of Copenhagen
    • QuTech and Kavli Institute of Nanoscience, Delft University of Technology
    • Center for Quantum Devices, Niels Bohr Institute
    • QuTech and Kavli Institute of Nanoscience, Delft University of Technology, Delft, The Netherlands

  • Cornelis Christiaan Bultink

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

  • Adel A Elsherbini

    • Components Research, Intel
    • Components Research, Intel Corporation, 2501 NW 229th Avenue, Hillsboro, OR, 97124, USA

  • Lester Lampert

    • Components Research, Intel
    • Components Research, Intel Corporation
    • Components Research, Intel Corporation, 2501 NW 229th Avenue, Hillsboro, OR, 97124, USA

  • Alexander Yarovoy

    • Microwave Sensing, Signals and Systems, Delft University of Technology, Delft, The Netherlands

  • Jim Clarke

    • Components Research, Intel
    • Components Research, Intel Corporation
    • Intel
    • Intel Corporation
    • Components Research, Intel Corporation, 2501 NW 229th Avenue, Hillsboro, OR, 97124, USA

  • 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