Flux and Unconventional Qubits I

Presentations

• Lattice field theory for superconducting circuits

  ORAL

  March 16, 2026, 3:30 PM – March 16, 2026, 3:42 PM

  Presenters

  • Neill Warrington

    • MIT Center for Theoretical Physics

  Authors

  • Neill Warrington

    • MIT Center for Theoretical Physics

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• Engineering Josephson junction arrays for fluxonium qubits resilient to coherent quantum phase-slips

  ORAL

  March 16, 2026, 3:42 PM – March 16, 2026, 3:54 PM

  Presenters

  • Jinlun Hu

    • Delft University of Technology
    • Delft university of techonology

  Authors

  • Jinlun Hu

    • Delft University of Technology
    • Delft university of techonology

  • Siddharth Singh

    • Delft University of Technology

  • Eugene Y Huang

    • Delft University of Technology

  • Figen Yilmaz

    • Delft University of Technology

  • Martijn Frans Sjoerd Zwanenburg

    • QuTech and Delft University of Technology

  • Christian Kraglund Andersen

    • Delft University of Technology

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• Loss mechanisms in fluxonium molecules

  ORAL

  March 16, 2026, 3:54 PM – March 16, 2026, 4:06 PM

  Presenters

  • Aayam Bista

    • University of Illinois at Urbana-Champaign

  Authors

  • Aayam Bista

    • University of Illinois at Urbana-Champaign

  • Ke Nie

    • University of Illinois at Urbana-Champaign

  • Edmond K Chow

    • University of Illinois at Urbana-Champaign
    • University of Illinois at Urbana Champaign

  • Angela Kou

    • University of Illinois at Urbana-Champaign
    • University of Illinois Urbana-Champaign

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• Zero-field operation of NbN-based flux qubits with ferromagnetic π-junctions

  ORAL · Invited

  March 16, 2026, 4:06 PM – March 16, 2026, 4:42 PM

  Publication: [1] T. Yamashita et al., Phys. Rev. Lett. 95, 097001 (2005).
  [2] S. Kim et al., Commun. Mater. 2, 98 (2021).
  [3] D. Pham et al., Sci. Rep. 12, 6863 (2022).
  [4] S. Kim et al., Commun. Mater. 5, 216 (2024).
  [5] A. K. Feofanov et al., Nat. Phys. 6, 593 (2010).

  Presenters

  • Sunmi Kim

    • National Institute of Information and Communications Technology (NICT)

  Authors

  • Sunmi Kim

    • National Institute of Information and Communications Technology (NICT)

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• Towards experimental realization of a non-degenerate noise-resilient superconducting qubit

  ORAL

  March 16, 2026, 4:42 PM – March 16, 2026, 4:54 PM

  Presenters

  • Junghyun Kim

    • Massachusetts Institute of Technology

  Authors

  • Junghyun Kim

    • Massachusetts Institute of Technology

  • Hung-Yu Tsao

    • Massachusetts Institute of Technology

  • Junyoung An

    • Massachusetts Institute of Technology

  • Chia-Chin Tsai

    • Massachusetts Institute of Technology

  • Helin Zhang

    • Massachusetts Institute of Technology

  • Farid Hassani Bijarbooneh

    • Massachusetts Institute of Technology

  • Aranya Goswami

    • Massachusetts Institute of Technology
    • Nokia Bell Labs

  • Jeffrey M Gertler

    • MIT Lincoln Laboratory

  • Kate Azar

    • Massachusetts Institute of Technology
    • MIT

  • Jeffrey A Grover

    • Massachusetts Institute of Technology

  • Kyle Serniak

    • MIT Lincoln Laboratory

  • Max Hays

    • Massachusetts Institute of Technology

  • William D Oliver

    • Massachusetts Institute of Technology

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• Fraunhofer Qubit

  ORAL

  March 16, 2026, 4:54 PM – March 16, 2026, 5:06 PM

  Presenters

  • Longyu Ma

    • University of Wisconsin - Madison

  Authors

  • Longyu Ma

    • University of Wisconsin - Madison

  • Tony Liu

    • University of Washington

  • Maxim G Vavilov

    • University of Wisconsin - Madison

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• Abstract Withdrawn

  ORAL · Withdrawn

  March 16, 2026, 5:06 PM – March 16, 2026, 5:18 PM

  View abstract →

• Realizing higher Josephson harmonics in a double-junction transmon

  ORAL

  March 16, 2026, 5:18 PM – March 16, 2026, 5:30 PM

  Publication: K. Shagalov et al., Realizing higher Josephson harmonics in a double-junction transmon (in preparation).

  Presenters

  • Ksenia Shagalov

    • Niels Bohr Institute, University of Copenhagen

  Authors

  • Ksenia Shagalov

    • Niels Bohr Institute, University of Copenhagen

  • David F Feldstein-Bofill

    • Niels Bohr Institute, University of Copenhagen

  • Leo Uhre Jakobsen

    • Niels Bohr Institute, University of Copenhagen

  • Zhenhai Sun

    • Niels Bohr Institute, University of Copenhagen

  • Johann B Bock Severin

    • Niels Bohr Institute, University of Copenhagen

  • Malthe A Marciniak

    • Niels Bohr Institute, University of Copenhagen

  • Anders Kringhøj

    • Niels Bohr Institute, University of Copenhagen

  • Jacob Hastrup

    • Niels Bohr Institute, University of Copenhagen

  • Karsten Flensberg

    • University of Copenhagen

  • Svend Krøjer

    • Niels Bohr Institute
    • Niels Bohr Institute, University of Copenhagen

  • Morten Kjaergaard

    • Niels Bohr Institute, University of Copenhagen

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• Mediator-activated two-qubit gate with static crosstalk suppression using the multimode P-mon circuit

  ORAL

  March 16, 2026, 5:30 PM – March 16, 2026, 5:42 PM

  Presenters

  • Frederik Pfeiffer

    • TU Munich
    • TU Munich & Walther-Meißner-Institut

  Authors

  • Frederik Pfeiffer

    • TU Munich
    • TU Munich & Walther-Meißner-Institut

  • Federico A Roy

    • Walther-Meißner-Institut
    • Walther Meissner Institute & Saarland University

  • Niklas J Glaser

    • TU Munich
    • TU Munich & Walther-Meißner-Institut

  • Julius Feigl

    • Walther-Meissner-Insitute
    • Walther-Meissner-Institut
    • Walther-Meissner-Institute
    • TU Munich & Walther-Meißner-Institut
    • Walther-Meißner-Institut
    • Walther Meissner Institute & TU Munich

  • Leon Koch

    • TU Munich
    • TU Munich & Walther-Meissner-Institute
    • Walther-Meissner-Institute
    • TU Munich & Walther-Meißner-Institut
    • Walther-Meißner-Institut
    • Walther Meissner Institute & TU Munich

  • Gleb Krylov

    • Walther-Meissner-Institute
    • Walther-Meißner-Institut

  • Christian M Schneider

    • Technical University Munich (TUM), Walther Meißner Institute (WMI)
    • TU Munich
    • Walther Meissner Institute
    • TU Munich & Walther-Meissner-Institute
    • TU Munich & Walther-Meißner-Institut
    • Walther-Meißner-Institut
    • Walther Meissner Institute & TU Munich

  • Max Werninghaus

    • Walther-Meißner-Institute
    • TU Munich & Walther-Meißner-Institut
    • Walther Meissner Institute & TU Munich
    • Walther Meissner Inst

  • Carlos A Riofrío

    • BMW Group

  • Stefan Filipp

    • Walther-Meißner-Institute
    • TU Munich
    • TU Munich & Walther-Meissner-Institute
    • Walther-Meissner-Institute
    • Walther-Meißner-Institut & TU Munich
    • TU Munich & Walther-Meißner-Institut
    • Walther Meissner Institute & TU Munich

  View abstract →

• Abstract Withdrawn

  ORAL · Withdrawn

  March 16, 2026, 5:42 PM – March 16, 2026, 5:54 PM

  View abstract →

• Differential Unimon Qubit: A Distributed-Element Superconducting Qubit Based on an Odd-Mode Transmission Line Resonator

  ORAL

  March 16, 2026, 5:54 PM – March 16, 2026, 6:06 PM

  Presenters

  • Gyum Lee

    • KAIST

  Authors

  • Gyum Lee

    • KAIST

  • Eunseong Kim

    • Korea Adv Inst of Sci & Tech

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• Investigating loss and dephasing mechanisms in constriction-based phase slip qubits

  ORAL

  March 16, 2026, 6:06 PM – March 16, 2026, 6:18 PM

  Presenters

  • Cheeranjeev Purmessur

    • University of Illinois at Urbana-Champaign

  Authors

  • Cheeranjeev Purmessur

    • University of Illinois at Urbana-Champaign

  • Amrita Purkayastha

    • University of Illinois at Urbana-Champaign
    • University of Pittsburgh
    • University of Illinois at Urbana Champaign

  • Bernard Van Heck

    • University of Rome La Sapienza

  • Angela Kou

    • University of Illinois at Urbana-Champaign
    • University of Illinois Urbana-Champaign

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• Quasienergy Response and Dynamical Protection in Floquet Superconducting Qubits

  ORAL

  March 16, 2026, 6:18 PM – March 16, 2026, 6:30 PM

  Publication: D. D. B.-Colunga, et al, Dynamical Sweet and Sour Regions in Bichromatically Driven Floquet Qubits, arXiv:2505.22606 (2025)

  Presenters

  • Bibek Bhandari

    • Chapman University

  Authors

  • Bibek Bhandari

    • Chapman University

  • D. Dominic Briseno-Colunga

    • Chapman University

  • Abhishek Chakraborty

    • Chapman University
    • University of Rochester

  • Chuan-Hong Liu

    • Lawrence Berkeley National Laboratory

  • David Ivan Santiago

    • Lawrence Berkeley National Laboratory

  • Irfan Siddiqi

    • University of California, Berkeley

  • Justin Dressel

    • Chapman University

  • Andrew N Jordan

    • Chapman University

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