Superconducting qubit devices: fabrication suite

ORAL

Abstract

Scalable quantum computing architecture and fabrication processes have been a hot research topic in the past decade. We focus on the realization of a quantum computer based on superconducting qubits with a fast qubit reset and initialization techniques, utilizing a quantum-circuit refrigerator [1]. We present the fabricated devices and results achieved to date, which includes resonators with high quality factors, > 1e6, long qubit lifetime > 0.02 ms and 3D integration techniques such as airbridges.

*We acknowledge the provision of facilities and technical support by Aalto University at OtaNano - Micronova Nanofabrication Centre. We thank Quantum Technologies Flagship members for scientific discussions.

–

Presenters

  • Kok Wai Chan

    • IQM Finland Oy

Authors

  • Kok Wai Chan

    • IQM Finland Oy

  • Tianyi Li

    • IQM Finland Oy
    • Aalto University

  • Wei Liu

    • IQM Finland Oy
    • Aalto University

  • Johannes Heinsoo

    • IQM Finland Oy

  • Vasilii Sevriuk

    • IQM Finland Oy
    • QCD Labs, QTF Center of Excellence, Department of Applied Physics, Aalto University
    • QCD Labs, Aalto University

  • Caspar Ockeloen-Korppi

    • IQM Finland Oy

  • Jani Tuorila

    • IQM Finland Oy

  • Juha Hassel

    • IQM Finland Oy

  • Juha Vartiainen

    • IQM Finland Oy

  • Kuan Yen Tan

    • IQM Finland Oy
    • Aalto University

  • Jan Goetz

    • IQM Finland Oy
    • QCD Labs, QTF Center of Excellence, Department of Applied Physics, Aalto University

  • Mikko Mottonen

    • IQM Finland Oy