Superconducting Cat Qubits

Presentations

• Enhancing the coherent-state lifetime of a Kerr-cat qubit through leakage suppression (Part I)

  ORAL

  March 17, 2025, 8:00 AM – March 17, 2025, 8:12 AM

  Presenters

  • Daniel Z Haxell

    • IBM Research - Zurich
    • IBM Research Europe - Zurich
    • Paul Scherrer Institute

  Authors

  • Daniel Z Haxell

    • IBM Research - Zurich
    • IBM Research Europe - Zurich
    • Paul Scherrer Institute

  • Francesco Adinolfi

    • Paul Scherrer Institute

  • Alessandro Bruno

    • Paul Scherrer Institute

  • Laurent Michaud

    • Paul Scherrer Institute

  • Venus Hasanuzzaman Kamrul

    • Paul Scherrer Institute

  • Preeti Pandey

    • Paul Scherrer Institute

  • Alexander Grimm

    • Paul Scherrer Institute

  View abstract →

• Enhancing the coherent-state lifetime of a Kerr-cat qubit through leakage suppression (Part II)

  ORAL

  March 17, 2025, 8:12 AM – March 17, 2025, 8:24 AM

  Presenters

  • Francesco Adinolfi

    • Paul Scherrer Institute

  Authors

  • Francesco Adinolfi

    • Paul Scherrer Institute

  • Daniel Z Haxell

    • IBM Research - Zurich
    • IBM Research Europe - Zurich
    • Paul Scherrer Institute

  • Alessandro Bruno

    • Paul Scherrer Institute

  • Laurent Michaud

    • Paul Scherrer Institute

  • Venus Hasanuzzaman Kamrul

    • Paul Scherrer Institute

  • Preeti Pandey

    • Paul Scherrer Institute

  • Alexander Grimm

    • Paul Scherrer Institute

  View abstract →

• Understanding the degradation of Kerr cat qubit's noise bias

  ORAL

  March 17, 2025, 8:24 AM – March 17, 2025, 8:36 AM

  Publication: [1]. J. Chavez-Carlos et al, arXiv:2310.17698
  [2]. I. Garcia-Mata et al, arXiv:2408.00934
  [3]. N.E. Frattini, R.G. Cortiñas et al, Phys. Rev. X 14, 031040 (2024)
  [4]. D. Ruiz et al, Phys. Rev. A 107, 042407 (2023)
  [5]. A. de Albornoz et al, arXiv:2409.13113

  Presenters

  • Othmane Benhayoune Khadraoui

    • Université de Sherbrooke

  Authors

  • Othmane Benhayoune Khadraoui

    • Université de Sherbrooke

  • Cristóbal Lledó

    • Université de Sherbrooke

  • Manuel H Munoz Arias

    • Universite de Sherbrooke

  • Alexandre Blais

    • Université de Sherbrooke

  View abstract →

• Realizing biased noise syndrome measurement in a repetition code of cat qubits

  ORAL · Invited

  March 17, 2025, 8:36 AM – March 17, 2025, 9:12 AM

  Publication: Putterman H., Noh K., Hann, C. et al. Hardware-efficient quantum error correction using concatenated bosonic qubits, arXiv:2409.13025 [quant-ph]
  Putterman H.*, Noh K.*, Patel R. et al. Preserving phase coherence and linearity in cat qubits with exponential bit-flip suppression, arXiv:2409.17556 [quant-ph]

  Presenters

  • Harald Putterman

    • AWS Center for Quantum Computing

  Authors

  • Harald Putterman

    • AWS Center for Quantum Computing

  View abstract →

• Leveraging biased noise ancilla in quantum error correction: Experimental investigations of coupling between a transmon and a Kerr-Cat qubit: Part 1/2

  ORAL

  March 17, 2025, 9:12 AM – March 17, 2025, 9:24 AM

  Presenters

  • Josiah Cochran

    • University of Texas at Austin

  Authors

  • Josiah Cochran

    • University of Texas at Austin

  • Haley M Cole

    • University of Texas at Austin

  • Hebah Goderya

    • Purdue University
    • University of Texas at Austin

  • Zhuoqun Hao

    • University of Texas at Austin

  • Theo Shaw

    • University of Texas at Austin

  • Aikaterini Kargioti

    • University of Texas at Austin

  • Shyam Shankar

    • University of Texas at Austin

  View abstract →

• Leveraging biased noise ancilla in quantum error correction: Experimental investigations of coupling between a transmon and a Kerr-Cat qubit: Part 2/2

  ORAL

  March 17, 2025, 9:24 AM – March 17, 2025, 9:36 AM

  Presenters

  • Haley M Cole

    • University of Texas at Austin

  Authors

  • Haley M Cole

    • University of Texas at Austin

  • Josiah Cochran

    • University of Texas at Austin

  • Hebah Goderya

    • Purdue University
    • University of Texas at Austin

  • Zhuoqun Hao

    • University of Texas at Austin

  • Theo Shaw

    • University of Texas at Austin

  • Aikaterini Kargioti

    • University of Texas at Austin

  • Shyam Shankar

    • University of Texas at Austin

  View abstract →

• Beyond Single Photon Dissipation in Kerr Cat Qubits

  ORAL

  March 17, 2025, 9:36 AM – March 17, 2025, 9:48 AM

  Presenters

  • Irwin Huang

    • University of Rochester

  Authors

  • Irwin Huang

    • University of Rochester

  • Bibek Bhandari

    • Chapman University

  • KAGAN YANIK

    • University of Rochester
    • University of Rochester, Chapman University

  • Bingcheng Qing

    • University of California, Berkeley

  • AHMED HAJR

    • University of California, Berkeley

  • Ke Wang

    • University of California, Berkeley

  • David I Santiago

    • Lawrence Berkeley National Laboratory

  • Justin Dressel

    • Chapman University

  • Irfan Siddiqi

    • University of California, Berkeley

  • Andrew N Jordan

    • Chapman University

  View abstract →

• Benchmarking Single-Qubit Gates on a Noise-Biased Qubit: Kerr cat qubit

  ORAL

  March 17, 2025, 9:48 AM – March 17, 2025, 10:00 AM

  Publication: Benchmarking Single-Qubit Gates on a Noise-Biased Qubit, in preparation, Bingcheng, Qing, et al.

  Presenters

  • Bingcheng Qing

    • University of California, Berkeley

  Authors

  • Bingcheng Qing

    • University of California, Berkeley

  • AHMED HAJR

    • University of California, Berkeley

  • Ke Wang

    • University of California, Berkeley

  • Zahra Pedramrazi

    • University of California, Berkeley

  • Irwin Huang

    • University of Rochester

  • Bibek Bhandari

    • Chapman University

  • Larry Chen

    • University of California, Berkeley

  • Justin Dressel

    • Chapman University

  • Noah Kurt Goss

    • University of California, Berkeley

  • Andrew N Jordan

    • Chapman University

  • Long Bao Nguyen

    • University of California, Berkeley

  • David I Santiago

    • Lawrence Berkeley National Laboratory

  • Gerwin Koolstra

    • EeroQ Quantum Hardware

  • Irfan Siddiqi

    • University of California, Berkeley

  View abstract →

• Frequency-noise-insensitive universal control of Kerr-cat qubits

  ORAL

  March 17, 2025, 10:00 AM – March 17, 2025, 10:12 AM

  Presenters

  • Lennart Maximilian Seifert

    • University of Chicago

  Authors

  • Lennart Maximilian Seifert

    • University of Chicago

  • Connor T Hann

    • Amazon
    • AWS Center for Quantum Computing

  • Kyungjoo Noh

    • Amazon.com, Inc.
    • AWS Center for Quantum Computing

  View abstract →

• Strong light-matter coupling to protect quantum information with Schrodinger cat states

  ORAL

  March 17, 2025, 10:12 AM – March 17, 2025, 10:24 AM

  Publication: Ahmed Hajr et al. "High-Coherence Kerr-cat qubit in 2D architecture". In: arXiv preprint
  arXiv:2404.16697 (2024)

  Presenters

  • AHMED HAJR

    • University of California, Berkeley

  Authors

  • AHMED HAJR

    • University of California, Berkeley

  • Bingcheng Qing

    • University of California, Berkeley

  • Ke Wang

    • University of California, Berkeley

  • Irwin Huang

    • University of Rochester

  • Bibek Bhandari

    • Chapman University

  • Justin Dressel

    • Chapman University

  • Andrew N Jordan

    • Chapman University

  • Irfan Siddiqi

    • University of California, Berkeley

  View abstract →

• Decoherence in dynamically protected qubits

  ORAL

  March 17, 2025, 10:24 AM – March 17, 2025, 10:36 AM

  Publication: 1. L. B. Nguyen, Y. Kim, N. Goss, B. Marinelli, B. Bhandari, et al., Nature Physics, 1-7 (2024)
  2. A. Hajr, B. Qing, K. Wang, G. Koolstra, Z. Pedramrazi, Z. Kang, L. Chen, L. B. Nguyen, C. Junger, N. Goss, I. Huang, B. Bhandari, et al., arXiv:2404.16697 (2024) (PRX accepted)
  3. B. Bhandari, et al, arXiv:2405.11375 (2024)

  Presenters

  • Bibek Bhandari

    • Chapman University

  Authors

  • Bibek Bhandari

    • Chapman University

  • D. Dominic Dominic Briseño-Colunga

    • Chapman University

  • Irwin Huang

    • University of Rochester

  • AHMED HAJR

    • University of California, Berkeley

  • Long Bao Nguyen

    • University of California, Berkeley

  • Bingcheng Qing

    • University of California, Berkeley

  • Ke Wang

    • University of California, Berkeley

  • David I Santiago

    • Lawrence Berkeley National Laboratory

  • Irfan Siddiqi

    • University of California, Berkeley

  • Justin Dressel

    • Chapman University

  • Andrew N Jordan

    • Chapman University

  View abstract →

• Control-Z two-qubit gate on 2D Kerr cats

  ORAL

  March 17, 2025, 10:36 AM – March 17, 2025, 10:48 AM

  Presenters

  • Ke Wang

    • University of California, Berkeley

  Authors

  • Ke Wang

    • University of California, Berkeley

  • AHMED HAJR

    • University of California, Berkeley

  • Bingcheng Qing

    • University of California, Berkeley

  • Bibek Bhandari

    • Chapman University

  • Irwin Huang

    • University of Rochester

  • Chuan-Hong Liu

    • University of California, Berkeley
    • Univ of California, Berkeley

  • Zahra Pedramrazi

    • Lawrence Berkeley National Laboratory

  • Justin Dressel

    • Chapman University

  • Andrew N Jordan

    • Chapman University

  • David I Santiago

    • Lawrence Berkeley National Laboratory

  • Irfan Siddiqi

    • University of California, Berkeley

  View abstract →

• Chiral cat code: enhanced error correction through higher-order nonlinearities

  ORAL

  March 17, 2025, 10:48 AM – March 17, 2025, 11:00 AM

  Publication: - Phys. Rev. A 106, 022431 (2022).
  - PRX Quantum 4, 020337 (2023).

  Presenters

  • Fabrizio Minganti

    • Alice and Bob
    • Alice&Bob

  Authors

  • Fabrizio Minganti

    • Alice and Bob
    • Alice&Bob

  • Alberto Mercurio

    • Federal Institute of Technology (EPFL)

  • Adria Labay Mora

    • Institute for Cross-Disciplinary Physics and Complex Systems (IFISC) UIB-CSIC
    • Institute for Cross-Disciplinary Physics and Complex Systems

  • Gian Luca Giorgi

    • Institute for Cross-Disciplinary Physics and Complex Systems (IFISC) UIB-CSIC
    • IFISC (CSIC-UIB)
    • Institute for Cross-Disciplinary Physics and Complex Systems

  • Roberta Zambrini

    • Institute for Cross-Disciplinary Physics and Complex Systems (IFISC) UIB-CSIC
    • IFISC (CSIC-UIB)

  • Vincenzo Savona

    • EPFL
    • Federal Institute of Technology (EPFL)
    • École Polytechnique Federal de Lausanne

  View abstract →