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Integrated silicon qubit platform with single-spin addressability, exchange control and single-shot singlet-triplet readout

Author

Listed:
  • M. A. Fogarty

    (The University of New South Wales
    London Centre for Nanotechnology)

  • K. W. Chan

    (The University of New South Wales)

  • B. Hensen

    (The University of New South Wales)

  • W. Huang

    (The University of New South Wales)

  • T. Tanttu

    (The University of New South Wales)

  • C. H. Yang

    (The University of New South Wales)

  • A. Laucht

    (The University of New South Wales)

  • M. Veldhorst

    (TU Delft)

  • F. E. Hudson

    (The University of New South Wales)

  • K. M. Itoh

    (Keio University)

  • D. Culcer

    (The University of New South Wales)

  • T. D. Ladd

    (LLC)

  • A. Morello

    (The University of New South Wales)

  • A. S. Dzurak

    (The University of New South Wales)

Abstract

Silicon quantum dot spin qubits provide a promising platform for large-scale quantum computation because of their compatibility with conventional CMOS manufacturing and the long coherence times accessible using 28Si enriched material. A scalable error-corrected quantum processor, however, will require control of many qubits in parallel, while performing error detection across the constituent qubits. Spin resonance techniques are a convenient path to parallel two-axis control, while Pauli spin blockade can be used to realize local parity measurements for error detection. Despite this, silicon qubit implementations have so far focused on either single-spin resonance control, or control and measurement via voltage-pulse detuning in the two-spin singlet–triplet basis, but not both simultaneously. Here, we demonstrate an integrated device platform incorporating a silicon metal-oxide-semiconductor double quantum dot that is capable of single-spin addressing and control via electron spin resonance, combined with high-fidelity spin readout in the singlet-triplet basis.

Suggested Citation

  • M. A. Fogarty & K. W. Chan & B. Hensen & W. Huang & T. Tanttu & C. H. Yang & A. Laucht & M. Veldhorst & F. E. Hudson & K. M. Itoh & D. Culcer & T. D. Ladd & A. Morello & A. S. Dzurak, 2018. "Integrated silicon qubit platform with single-spin addressability, exchange control and single-shot singlet-triplet readout," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-06039-x
    DOI: 10.1038/s41467-018-06039-x
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    Cited by:

    1. Wonjin Jang & Jehyun Kim & Jaemin Park & Gyeonghun Kim & Min-Kyun Cho & Hyeongyu Jang & Sangwoo Sim & Byoungwoo Kang & Hwanchul Jung & Vladimir Umansky & Dohun Kim, 2023. "Wigner-molecularization-enabled dynamic nuclear polarization," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Ingvild Hansen & Amanda E. Seedhouse & Santiago Serrano & Andreas Nickl & MengKe Feng & Jonathan Y. Huang & Tuomo Tanttu & Nard Dumoulin Stuyck & Wee Han Lim & Fay E. Hudson & Kohei M. Itoh & Andre Sa, 2024. "Entangling gates on degenerate spin qubits dressed by a global field," Nature Communications, Nature, vol. 15(1), pages 1-7, December.

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