A Scalable Multi-Channel Cryogenic Controller for Spin Qubits/Transmons with Frequency Multiplexing Capability Implemented in Intel 22nm FinFET Technology

ORAL

Abstract

Scaling a fault-tolerant quantum computer to a very large number of qubits is a daunting challenge. Innovation is required in qubit fabrication, integration and control. Current approaches for controlling qubits operating at cryogenic temperature using room-temperature electronics will not scale to large qubit arrays. We have recently proposed to bring integrated electronics close to the qubits at cryogenic temperatures. Leveraging deeply-scaled CMOS process technologies, complex System-on-Chips (SoCs) with digital, analog and RF capabilities can be integrated with sufficiently low power consumption to be compatible with dilution refrigerators. We demonstrate a cryo-CMOS controller SoC designed to operate at 4K and implemented in Intel 22nm FinFET technology. The SoC is capable of addressing 128 frequency-multiplexed qubits across 4 separate channels over 1GHz RF bandwidth from 2 to 20GHz. The maximum output power is -16dBm at 6GHz with 40dB gain control. Such flexibility enables the control of both spin qubits and transmons with the same chip. By operating our cryo-CMOS controller on the 4K plate in a dilution refrigerator also hosting a Si-based qubit sample at 20mK, we demonstrate Rabi oscillations and coherent x-y rotations of the spin qubit at both 13.7 and 17.5GHz.

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Presenters

  • Sushil Subramanian

    • Intel, Hillsboro, OR

Authors

  • Bishnu Patra

    • Delft University of Technology, Delft, The Netherlands

  • Jeroen P. G. van Dijk

    • Delft University of Technology, Delft, The Netherlands

  • Sushil Subramanian

    • Intel, Hillsboro, OR

  • Andrea Corna

    • Delft University of Technology, Delft, The Netherlands

  • Xiao Xue

    • Delft University of Technology, Delft, The Netherlands

  • Charles Jeon

    • Intel, Hillsboro, OR

  • Farhana Sheikh

    • Intel, Hillsboro, OR

  • Esdras Juarez Hernandez

    • Intel, Guadalajara, Mexico

  • Brando Perez Esparza

    • Intel, Guadalajara, Mexico

  • Huzaifa Rampurawala

    • Intel, Hillsboro, OR

  • Brent Carlton

    • Intel, Hillsboro, OR

  • Nodar Samkharadze

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

  • Surej Ravikumar

    • Intel, Hillsboro, OR

  • Carlos Nieva

    • Intel, Hillsboro, OR

  • Sungwon Kim

    • Intel, Hillsboro, OR

  • Hyung-Jin Lee

    • Intel, Hillsboro, OR

  • Amir Sammak

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

  • Giordano Scappucci

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

  • Menno Veldhorst

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

  • Lieven M Vandersypen

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

  • Masoud Babaie

    • Delft University of Technology, Delft, The Netherlands

  • Fabio Sebastiano

    • Delft University of Technology
    • Delft University of Technology, Delft, The Netherlands

  • Edoardo Charbon

    • EPFL, Neuchatel, Switzerland

  • Stefano Pellerano

    • Intel, Hillsboro, OR