Recent Advances in GKP Qubits

Presentations

• Logical Gates on Grid Codes with Gaussian Operations, Part 1: Analytical Approach for the Phase Gate

  ORAL

  March 16, 2026, 8:00 AM – March 16, 2026, 8:12 AM

  Presenters

  • Marie Frédérique Dumas

    • Université de Sherbrooke
    • Université de Sherbrooke, Nord Quantique

  Authors

  • Marie Frédérique Dumas

    • Université de Sherbrooke
    • Université de Sherbrooke, Nord Quantique

  • Dominik Lessnich

    • Nord Quantique

  • Ross Shillito

    • Nord Quantique

  • Chloé Gauvin-Ndiaye

    • Nord Quantique
    • Université de Sherbrooke, Nord Quantique

  • Florian Hopfmüller

    • 1QBit
    • Nord Quantique

  View abstract →

• Logical Gates on Grid Codes with Gaussian Operations, Part 2: Numerical Results for CZ and CNOT Gates

  ORAL

  March 16, 2026, 8:12 AM – March 16, 2026, 8:24 AM

  Presenters

  • Benjamin Groleau-Paré

    • Nord Quantique

  Authors

  • Benjamin Groleau-Paré

    • Nord Quantique

  • Ross Shillito

    • Nord Quantique

  • Florian Hopfmueller

    • Nord Quantique

  • Chloé Gauvin-Ndiaye

    • Nord Quantique
    • Université de Sherbrooke, Nord Quantique

  • Marie Frédérique Dumas

    • Université de Sherbrooke
    • Université de Sherbrooke, Nord Quantique

  View abstract →

• Logical Gates on Grid Codes with Gaussian Operations, Part 3: Experiments

  ORAL

  March 16, 2026, 8:24 AM – March 16, 2026, 8:36 AM

  Presenters

  • Jacob Koenig

    • Nord Quantique

  Authors

  • Jacob Koenig

    • Nord Quantique

  • Dany Lachance-Quirion

    • Nord Quantique

  • Joffrey Rivard

    • Université de Sherbrooke
    • Nord Quantique

  • Gabriel Ouelette

    • Nord Quantique

  • Steve Lamoureux

    • Nord Quantique

  • Pascal Lemieux

    • Nord Quantique

  • Benjamin Groleau-Paré

    • Nord Quantique

  • Ross Shillito

    • Nord Quantique

  • Sushant Zinzuvadiya

    • Nord Quantique

  • Matthew Hamer

    • Nord Quantique

  • Nicholas E Frattini

    • Nord Quantique

  View abstract →

• Using a self-Kerr nonlinearity for magic state preparation in grid codes

  ORAL · Invited

  March 16, 2026, 8:36 AM – March 16, 2026, 9:12 AM

  Presenters

  • Jérémie Boudreault

    • Université de Sherbrooke

  Authors

  • Jérémie Boudreault

    • Université de Sherbrooke

  • Ross Shillito

    • Nord Quantique

  • Jean-Baptiste Bertrand-Rhéaume

    • Université de Sherbrooke

  • Baptiste Royer

    • Université de Sherbrooke
    • Universite de Sherbrooke

  View abstract →

• On-chip GKP Quantum Error Correction with a Fluxonium Control Qubit, Part 1/2 

  ORAL

  March 16, 2026, 9:12 AM – March 16, 2026, 9:24 AM

  Presenters

  • Shoumik Chowdhury

    • Massachusetts Institute of Technology

  Authors

  • Shoumik Chowdhury

    • Massachusetts Institute of Technology

  • Shantanu R Jha

    • Massachusetts Institute of Technology

  • Max Hays

    • Massachusetts Institute of Technology

  • Gabriele Rolleri

    • ETH Zurich

  • Anaida Ali

    • University of Sherbrooke

  • Lev-Arcady Sellem

    • Université de Sherbrooke

  • Réouven Assouly

    • Massachussets Institute of Technology

  • David Pahl

    • Massachusetts Institute of Technology

  • Lukas Pahl

    • Massachusetts Institute of Technology

  • Junyoung An

    • Massachusetts Institute of Technology

  • Melvin Mathews

    • Google Quantum
    • Massachusetts Institute of Technology

  • Neill Warrington

    • MIT Center for Theoretical Physics

  • Jeffrey M Gertler

    • MIT Lincoln Laboratory

  • Michael A Gingras

    • MIT Lincoln Laboratory

  • Bethany M Niedzielski

    • MIT Lincoln Laboratory

  • Hannah M Stickler

    • MIT Lincoln Laboratory

  • Mollie E. Schwartz

    • MIT Lincoln Laboratory

  • Kyle Serniak

    • MIT Lincoln Laboratory

  • Baptiste Royer

    • Université de Sherbrooke
    • Universite de Sherbrooke

  • Jeffrey A Grover

    • Massachusetts Institute of Technology

  • William D Oliver

    • Massachusetts Institute of Technology

  View abstract →

• On-chip GKP Quantum Error Correction with a Fluxonium Control Qubit, Part 2/2 

  ORAL

  March 16, 2026, 9:24 AM – March 16, 2026, 9:36 AM

  Presenters

  • Shantanu R Jha

    • Massachusetts Institute of Technology

  Authors

  • Shantanu R Jha

    • Massachusetts Institute of Technology

  • Shoumik Chowdhury

    • Massachusetts Institute of Technology

  • Max Hays

    • Massachusetts Institute of Technology

  • Gabriele Rolleri

    • ETH Zurich

  • Anaida Ali

    • University of Sherbrooke

  • Lev-Arcady Sellem

    • Université de Sherbrooke

  • Réouven Assouly

    • Massachussets Institute of Technology

  • David Pahl

    • Massachusetts Institute of Technology

  • Lukas Pahl

    • Massachusetts Institute of Technology

  • Junyoung An

    • Massachusetts Institute of Technology

  • Melvin Mathews

    • Google Quantum
    • Massachusetts Institute of Technology

  • Neill Warrington

    • MIT Center for Theoretical Physics

  • Jeffrey M Gertler

    • MIT Lincoln Laboratory

  • Michael A Gingras

    • MIT Lincoln Laboratory

  • Bethany M Niedzielski

    • MIT Lincoln Laboratory

  • Hannah M Stickler

    • MIT Lincoln Laboratory

  • Mollie E. Schwartz

    • MIT Lincoln Laboratory

  • Kyle Serniak

    • MIT Lincoln Laboratory

  • Baptiste Royer

    • Université de Sherbrooke
    • Universite de Sherbrooke

  • Jeffrey A Grover

    • Massachusetts Institute of Technology

  • William D Oliver

    • Massachusetts Institute of Technology

  View abstract →

• Two-Qubit Gate between GKP States in a Planar Superconducting Device

  ORAL

  March 16, 2026, 9:36 AM – March 16, 2026, 9:48 AM

  Presenters

  • Gabriele Rolleri

    • ETH Zurich

  Authors

  • Gabriele Rolleri

    • ETH Zurich

  • Shantanu R Jha

    • Massachusetts Institute of Technology

  • Shoumik Chowdhury

    • Massachusetts Institute of Technology

  • Max Hays

    • Massachusetts Institute of Technology

  • Lev-Arcady Sellem

    • Université de Sherbrooke

  • Baptiste Royer

    • Université de Sherbrooke
    • Universite de Sherbrooke

  • Jeffrey A Grover

    • Massachusetts Institute of Technology

  • William D Oliver

    • Massachusetts Institute of Technology

  View abstract →

• Single-Mode Grid-Code Operations Approaching 1% Logical Errors, Part 1: Theory

  ORAL

  March 16, 2026, 9:48 AM – March 16, 2026, 10:00 AM

  Presenters

  • Lucas St-Jean

    • Nord Quantique

  Authors

  • Lucas St-Jean

    • Nord Quantique

  • Sara Turcotte

    • Nord Quantique

  • Ross Shillito

    • Nord Quantique

  • Bohdan Kulchytskyy

    • 1QBit; Nord Quantique
    • 1QBit
    • Nord Quantique

  • Dominik Lessnich

    • Nord Quantique

  • Florian Hopfmüller

    • 1QBit
    • Nord Quantique

  • Baptiste Royer

    • Université de Sherbrooke
    • Universite de Sherbrooke

  • Nicholas E Frattini

    • Nord Quantique

  • Chloé Gauvin-Ndiaye

    • Nord Quantique
    • Université de Sherbrooke, Nord Quantique

  View abstract →

• Single-mode Grid-Code Operations Approaching 1% Logical Errors, Part 2: Experiments

  ORAL

  March 16, 2026, 10:00 AM – March 16, 2026, 10:12 AM

  Presenters

  • Sara Turcotte

    • Nord Quantique

  Authors

  • Sara Turcotte

    • Nord Quantique

  • Amélie L Pessonneaux

    • Nord Quantique

  • Lucas St-Jean

    • Nord Quantique

  • Bohdan Kulchytskyy

    • 1QBit; Nord Quantique
    • 1QBit
    • Nord Quantique

  • Dany Lachance-Quirion

    • Nord Quantique

  • Baptiste Royer

    • Université de Sherbrooke
    • Universite de Sherbrooke

  • Nicholas E Frattini

    • Nord Quantique

  View abstract →

• Energy-Scaled Zero Noise Extrapolation Extends the Operating Regime of GKP Codes

  ORAL

  March 16, 2026, 10:12 AM – March 16, 2026, 10:24 AM

  Presenters

  • Guizhong Luo

    • University of Wisconsin - Madison

  Authors

  • Matthew Otten

    • University of Wisconsin - Madison

  • Guizhong Luo

    • University of Wisconsin - Madison

  View abstract →

• Stabilizing a Continuous Family of Non-classical Grid States in an Oscillator

  ORAL

  March 16, 2026, 10:24 AM – March 16, 2026, 10:36 AM

  Presenters

  • Benjamin Lorsch Brock

    • Université de Sherbrooke

  Authors

  • Benjamin Lorsch Brock

    • Université de Sherbrooke

  • Shraddha Singh

    • Yale University

  • Luigi Frunzio

    • Yale University

  • Steven M Girvin

    • Yale University

  • Michel H Devoret

    • Yale University
    • Google Quantum AI

  View abstract →

• High-speed quantum operations of bosonic modes for superconducting circuits

  ORAL

  March 16, 2026, 10:36 AM – March 16, 2026, 10:48 AM

  Publication: Planned Paper - same title

  Presenters

  • Connor Blake

    • University of Chicago

  Authors

  • Connor Blake

    • University of Chicago

  • Guo Zheng

    • University of Chicago

  • Gideon Lee

    • University of Chicago

  • Liang Jiang

    • University of Chicago

  View abstract →

• Protecting bosonic codes from ancilla-induced logical errors with continuous-variable flags

  ORAL

  March 16, 2026, 10:48 AM – March 16, 2026, 11:00 AM

  Presenters

  • Thomas Décultot

    • Alice & Bob, Inria

  Authors

  • Thomas Décultot

    • Alice & Bob, Inria

  • Jérémie Guillaud

    • Alice & Bob

  • Ronan Gautier

    • Alice & Bob

  • Mazyar Mirrahimi

    • Inria

  View abstract →