APS Logo

Unconditional reset of superconducting qubits and readout resonators using a quantum-circuit refrigerator

ORAL

Abstract

In quantum information processing with logical qubits, increasing the clock rate of the error correction cycles improves the qubit fidelity. The clock rate is limited by the duration of logical gates, qubit state readout, and initialization of qubits and readout circuits. Linear and non-linear superconducting resonators can be quickly initialized using a quantum-circuit refrigerator based on fast voltage pulsing of an SINIS junction [1,2]. We discuss our latest results to this end.

[1] V. Sevriuk et al., Appl. Phys. Lett. 115, 082601 (2019)
[2] D. Basilewitsch et al., New J. Phys. 21, 093054 (2019)

–

Presenters

  • Johannes Heinsoo

    IQM Finland Oy

Authors

  • Vasilii Sevriuk

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

  • Jani Tuorila

    IQM Finland Oy

  • Johannes Heinsoo

    IQM Finland Oy

  • Caspar Ockeloen-Korppi

    IQM Finland Oy

  • Joni Ikonen

    Department of Applied Physics, Aalto University

  • Kuan Yen Tan

    IQM Finland Oy, Aalto University

  • Eric Hyyppä

    QCD Labs, QTF Center of Excellence, Department of Applied Physics, Aalto University, Department of Applied Physics, Aalto University

  • Matti Silveri

    Research Unit of Nano and Molecular Systems, University of Oulu, QCD Labs, Aalto University, Department of Applied Physics, Aalto University

  • Matti Partanen

    QCD Labs, QTF Center of Excellence, Department of Applied Physics, Aalto University, Walther-Meissner-Institut, Munich, Germany, Walther-Meißner-Institut & Technische Universtät München, Germany, Department of Applied Physics, Aalto University

  • Máté Jenei

    QCD Labs, QTF Center of Excellence, Department of Applied Physics, Aalto University, Department of Applied Physics, Aalto University

  • Giacomo Catto

    Department of Applied Physics, Aalto University

  • Timm Mörstedt

    Department of Applied Physics, Aalto University

  • Leif Grönberg

    VTT Micro & Nanoelectronics, VTT Technical Research Centre of Finland Ltd, QTF Center of Excellence, VTT Technical Research Centre of Finland, VTT Techical Research Center of Finland Ltd.

  • Jan Goetz

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

  • Mikko Mottonen

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