Kerr-Cat Qubits: Control, Gates, Readout, and Applications

Presentations

• Quantum control of an oscillator with a Kerr-cat qubit

  Invited-In-person · Invited

  March 17, 2026, 3:30 PM – March 17, 2026, 4:06 PM

  Presenters

  • Andy Ding

    • AWS Center for Quantum Computing

  Authors

  • Andy Ding

    • AWS Center for Quantum Computing

  • Benjamin Brock

    • Université de Sherbrooke

  • Alec Eickbusch

    • Google Quantum AI

  • Akshay Koottandavida

  • Nicholas Frattini

    • Nord Quantique

  • Rodrigo Cortinas

    • Google Quantum AI

  • Vidul Joshi

    • Yale University

  • Stijn de Graaf

    • Yale University

  • Benjamin Chapman

    • Yale University

  • Suhas Ganjam

    • Google LLC

  • Luigi Frunzio

    • Yale University

  • Robert Schoelkopf

    • Yale University

  • Michel Devoret

  View abstract →

• A Reconfigurable Buffer for Two-Photon Dissipation and High Fidelity Cat-Transmon Gates (Part 1/2)

  Oral-In-person

  March 17, 2026, 4:06 PM – March 17, 2026, 4:18 PM

  Presenters

  • John Parker

    • Caltech

  Authors

  • John Parker

    • Caltech

  • Parthorn Ammawat

  • Bastien Bakker

    • Caltech

  • Richard Parada

    • Caltech

  • Oskar Painter

    • Caltech

  View abstract →

• A Reconfigurable Buffer for Two-Photon Dissipation and High Fidelity Cat-Transmon Gates (Part 2/2)

  Oral-In-person

  March 17, 2026, 4:18 PM – March 17, 2026, 4:30 PM

  Presenters

  • Parthorn Ammawat

    • Caltech

  Authors

  • Parthorn Ammawat

    • Caltech

  • John Parker

    • Caltech

  • Bastien Bakker

    • Caltech

  • Ricky Parada

  • Oskar Painter

    • Caltech

  View abstract →

• One-order-of-magnitude relaxation-time enhancement in a transmon with engineered dissipation (part 1)

  Oral-In-person

  March 17, 2026, 4:30 PM – March 17, 2026, 4:42 PM

  Presenters

  • Alessandro Bruno

    • Paul Scherrer Institute

  Authors

  • Alessandro Bruno

    • Paul Scherrer Institute

  • Ian Yang

    • Paul Scherrer Institute

  • Francesco Adinolfi

    • Paul Scherrer Institute

  • Daniel Haxell

    • Paul Scherrer Institute

  • Venus Hasanuzzaman Kamrul

    • Paul Scherrer Institute

  • Alexander Grimm

    • Paul Scherrer Institute

  View abstract →

• One-order-of-magnitude relaxation-time enhancement in a transmon with engineered dissipation (part 2)

  Oral-In-person

  March 17, 2026, 4:42 PM – March 17, 2026, 4:54 PM

  Presenters

  • Ian Yang

    • Paul Scherrer Institute

  Authors

  • Ian Yang

    • Paul Scherrer Institute

  • Alessandro Bruno

    • Paul Scherrer Institute

  • Francesco Adinolfi

    • Paul Scherrer Institute

  • Daniel Haxell

    • Paul Scherrer Institute

  • Venus Hasanuzzaman Kamrul

    • Paul Scherrer Institute

  • Alexander Grimm

    • Paul Scherrer Institute

  View abstract →

• Experimental control-Z two qubit gate on 2D Kerr cats

  Oral-In-person

  March 17, 2026, 4:54 PM – March 17, 2026, 5:06 PM

  Presenters

  • Ke Wang

    • University of California, Berkeley

  Authors

  • Ke Wang

    • University of California, Berkeley

  • Bingcheng Qing

    • University of California, Berkeley

  • AHMED HAJR

    • University of California, Berkeley

  • Bibek Bhandari

    • Chapman University

  • Irwin Huang

    • University of Rochester

  • Chuan-Hong Liu

    • Lawrence Berkeley National Laboratory

  • Justin Dressel

    • Chapman University

  • Andrew Jordan

    • Chapman University

  • David Santiago

    • Lawrence Berkeley National Laboratory

  • Irfan Siddiqi

    • University of California, Berkeley

  View abstract →

• Engineering Efficient Wave-Mixing For High-Fidelity Operations on Kerr-Cat Qubits

  Invited-In-person · Invited

  March 17, 2026, 5:06 PM – March 17, 2026, 5:42 PM

  Publication: A.Hajr et al. "High-Coherence Kerr-Cat Qubit in 2D Architecture". Phys. Rev. X 14, 041049 (2024)
  Bingcheng Qing et al. "Benchmarking Single-Qubit Gates on a Noise-Biased Qubit Beyond the Fault-Tolerant Threshold". arXiv:2404.16697 (2024)

  Presenters

  • AHMED HAJR

    • University of California, Berkeley

  Authors

  • AHMED HAJR

    • University of California, Berkeley

  View abstract →

• Experimental Optimization of Kerr-Cat Qubit Readout

  Oral-In-person

  March 17, 2026, 5:42 PM – March 17, 2026, 5:54 PM

  Presenters

  • Theo Shaw

    • University of Texas at Austin

  Authors

  • Theo Shaw

    • University of Texas at Austin

  • Haley Cole

    • University of Texas at Austin

  • Josiah Cochran

    • University of Texas at Austin

  • Shyam Shankar

    • University of Texas at Austin

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• A triplet of coupled Kerr-nonlinear oscillators in the quantum regime (part 1)

  Oral-In-person

  March 17, 2026, 5:54 PM – March 17, 2026, 6:06 PM

  Presenters

  • Venus Hasanuzzaman Kamrul

    • Paul Scherrer Institute

  Authors

  • Venus Hasanuzzaman Kamrul

    • Paul Scherrer Institute

  • Laurent Michaud

    • Paul Scherrer Institute

  • Alessandro Bruno

    • Paul Scherrer Institute

  • Preeti Pandey

  • Francesco Adinolfi

    • Paul Scherrer Institute

  • Daniel Haxell

    • Paul Scherrer Institute

  • Alexander Grimm

    • Paul Scherrer Institute

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• A triplet of coupled Kerr-nonlinear oscillators in the quantum regime (part 2)

  Oral-In-person

  March 17, 2026, 6:06 PM – March 17, 2026, 6:18 PM

  Presenters

  • Laurent Michaud

    • Paul Scherrer Institute

  Authors

  • Laurent Michaud

    • Paul Scherrer Institute

  • Venus Hasanuzzaman Kamrul

    • Paul Scherrer Institute

  • Alessandro Bruno

    • Paul Scherrer Institute

  • Preeti Pandey

  • Francesco Adinolfi

    • Paul Scherrer Institute

  • Daniel Haxell

    • Paul Scherrer Institute

  • Alexander Grimm

    • Paul Scherrer Institute

  View abstract →

• Strongly driven Kerr oscillator based on Ne-FIB milled Nb nanobridges

  Oral-In-person

  March 17, 2026, 6:18 PM – March 17, 2026, 6:30 PM

  Publication: (1) Bhandari et al., Nonlinear microwave circuit based on niobium nanobridges fabricated with Ne FIB, submitted to IEEE Trans. Appl. Supercond. 2025
  (2) Potter et al., Millikelvin Nb nanoSQUID-embedded tunable resonator fabricated with a neon focused-ion-beam, Appl. Phys. Lett. 6 January 2025

  Presenters

  • Parth Bhandari

    • University College London

  Authors

  • Parth Bhandari

    • University College London

  • Laith Meti

  • Edward Romans

  • John Gallop

  • Ling Hao

  View abstract →