Gate-Defined Spin Qubits: Modeling and Valley States

Presentations

• Probing disorder in semiconductor qubit devices with device simulations

  ORAL · Invited

  March 17, 2026, 8:00 AM – March 17, 2026, 8:36 AM

  Publication: [1] E. Cakar, H.E. Ercan, G. Fuchs, A.O. Denisov, C.R. Anderson, M.F. Gyure, J.R. Petta, Appl. Phys. Lett. 125, 143504 (2024)

  Presenters

  • Mark F Gyure

    • University of California, Los Angeles
    • UCLA

  Authors

  • Mark F Gyure

    • University of California, Los Angeles
    • UCLA

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• Design and Simulation of a Back-Gated Si/SiGe Double Quantum Well for Valley Splitting Mapping

  ORAL

  March 17, 2026, 8:36 AM – March 17, 2026, 8:48 AM

  Presenters

  • Leah Tom

    • University of California, Los Angeles

  Authors

  • Leah Tom

    • University of California, Los Angeles

  • Christopher R Anderson

    • University of California, Los Angeles
    • UCLA

  • Mark F Gyure

    • University of California, Los Angeles
    • UCLA

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• Valley splittings in the two bands k·p model for Si/SiGe heterostructures and spin qubit

  ORAL

  March 17, 2026, 8:48 AM – March 17, 2026, 9:00 AM

  Publication: Soon to be published as preprint on the arXiv and submitted to PRB in November

  Presenters

  • Tancredi Salamone

    • CEA Grenoble

  Authors

  • Tancredi Salamone

    • CEA Grenoble

  • Biel Martinez Diaz

    • CEA Grenoble
    • CEA/LETI
    • CEA

  • Jing Li

    • CEA Grenoble

  • Benoît Sklénard

    • CEA Grenoble

  • Lukas Cvitkovich

    • TU Wien

  • Yann-Michel Niquet

    • CEA
    • CEA Grenoble

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• Abstract Withdrawn

  ORAL · Withdrawn

  March 17, 2026, 9:00 AM – March 17, 2026, 9:12 AM

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• QDFlow: an open-source quantum-dot physics simulator

  ORAL

  March 17, 2026, 9:12 AM – March 17, 2026, 9:24 AM

  Publication: QDFlow: A Python package for physics simulations of quantum dot devices. arXiv:2509.13298

  Presenters

  • Donovan Buterakos

    • University of Maryland College Park

  Authors

  • Donovan Buterakos

    • University of Maryland College Park

  • Sandesh S Kalantre

    • Stanford University

  • Joshua Ziegler

    • National Institute of Standards and Technology, Gaithersburg, MD 20899, USA

  • Jacob M Taylor

    • University of Maryland College Park
    • University of Maryland, College Park

  • Justyna P Zwolak

    • National Institute of Standards and Technology (NIST)

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• Simple and Fast Silicon-Based Quantum Dot/Bit Simulation Method for Large-Scale Quantum Computing

  ORAL

  March 17, 2026, 9:24 AM – March 17, 2026, 9:36 AM

  Presenters

  • Yusuke Kanno

    • Hitachi Ltd

  Authors

  • Yusuke Kanno

    • Hitachi Ltd

  • Ryo Nagai

    • Hitachi, Ltd.

  • Takeru Utsugi

    • Hitachi, Ltd.

  • Nobuhiro Kusuno

    • Hitachi Ltd.,
    • Hitachi, Ltd.

  • Hiroyuki Mizuno

    • Hitachi, Ltd.
    • Hitach, Ltd.

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• Reducing orthotropic strain fluctuations in quantum dot devices by gate-layer stacking

  ORAL

  March 17, 2026, 9:36 AM – March 17, 2026, 9:48 AM

  Publication: Collin C. D. Frink, Talise Oh, E. S. Joseph, Merritt P. Losert, E. R. MacQuarrie, Benjamin D. Woods, M. A. Eriksson, Mark Friesen, Reducing strain fluctuations in quantum dot devices by gate-layer stacking (2025), arXiv:2312.09235v3 [cond-mat.mes-hall]

  Presenters

  • Talise Oh

    • University of Wisconsin-Madison

  Authors

  • Talise Oh

    • University of Wisconsin-Madison

  • Collin Frink

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

  • Emily S Joseph

    • University of Wisconsin - Madison

  • Merritt P Losert

    • University of Wisconsin-Madison
    • National Institute of Standards and Technology (NIST)
    • NIST

  • Evan R MacQuarrie

    • University of Wisconsin-Madison
    • Photonic

  • Benjamin D Woods

    • University of Wisconsin - Madison

  • Mark A Eriksson

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

  • Mark Friesen

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

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• Probing the valley phase of Si quantum dot qubits

  ORAL

  March 17, 2026, 9:48 AM – March 17, 2026, 10:00 AM

  Presenters

  • Hudaiba Soomro

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

  Authors

  • Hudaiba Soomro

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

  • Benjamin D Woods

    • University of Wisconsin - Madison

  • Mark Friesen

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

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• Enhancing Valley Splitting in Si/SiGe Wiggle Well Quantum Dots through Integrated Stressor–Gate Architectures

  ORAL

  March 17, 2026, 10:00 AM – March 17, 2026, 10:12 AM

  Presenters

  • Emily S Joseph

    • University of Wisconsin - Madison

  Authors

  • Emily S Joseph

    • University of Wisconsin - Madison

  • Talise Oh

    • University of Wisconsin-Madison

  • Donald E Savage

    • University of Wisconsin - Madison

  • Donald Stone

    • University of Wisconsin-Madison

  • Deanna M Campbell

    • Sandia National Laboratories
    • Sandia National Labs

  • Benjamin D Woods

    • University of Wisconsin - Madison

  • Mark Friesen

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

  • Mark A Eriksson

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

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• Dissecting simultaneous exchange from modeled multi-dot multi-electron energy spectra

  ORAL

  March 17, 2026, 10:12 AM – March 17, 2026, 10:24 AM

  Presenters

  • Andrey A Kiselev

    • HRL Laboratories, LLC

  Authors

  • Andrey A Kiselev

    • HRL Laboratories, LLC

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• Fast evaluation of multielectron states for modeling of state preparation and measurement (SPAM) in quantum dot spin qubits

  ORAL

  March 17, 2026, 10:24 AM – March 17, 2026, 10:36 AM

  Presenters

  • Dominic Daprano

    • HRL Laboratories, LLC

  Authors

  • Dominic Daprano

    • HRL Laboratories, LLC

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• Anisotropic spin-valley coupling in Si/SiGe quantum dots

  ORAL

  March 17, 2026, 10:36 AM – March 17, 2026, 10:48 AM

  Presenters

  • Natalie D Foster

    • Sandia National Laboratories

  Authors

  • Natalie D Foster

    • Sandia National Laboratories

  • N T Jacobson

    • Sandia National Laboratories

  • Dwight R Luhman

    • Sandia National Laboratories

  • Ryan M Jock

    • Sandia National Laboratories

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• The effect of lateral confinement on valley splitting in a Si quantum well containing 5% Ge

  ORAL

  March 17, 2026, 10:48 AM – March 17, 2026, 11:00 AM

  Presenters

  • Sanghyeok Park

    • University of Wisconsin - Madison
    • University of Wisconsin-Madison

  Authors

  • Sanghyeok Park

    • University of Wisconsin - Madison
    • University of Wisconsin-Madison

  • Alysa R Huffman

    • University of Wisconsin - Madison
    • University of Wisconsin-Madison

  • Emma C Brann

    • University of Wisconsin - Madison
    • University of Wisconsin-Madison

  • Owen M Eskandari

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

  • Jared Benson

    • University of Wisconsin - Madison
    • University of Wisconsin-Madison

  • Cate E Sturner

    • University of Wisconsin - Madison
    • University of Wisconsin-Madison

  • Davide Degli Esposti

    • Delft University of Technology

  • Lucas Stehouwer

    • Delft University of Technology
    • Groove Quantum
    • TU Delft QuTech

  • Larysa Tryputen

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

  • Giordano Scappucci

    • Delft University of Technology
    • TU Delft QuTech

  • Mark Friesen

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

  • Mark A Eriksson

    • University of Wisconsin-Madison
    • University of Wisconsin - Madison

  View abstract →