Improved Transmon & Fluxonium Readout

Presentations

• Ultrastrong dispersive coupling between a superconducting qubit and a millimeter-wave resonator

  ORAL

  March 19, 2025, 11:30 AM – March 19, 2025, 11:42 AM

  Presenters

  • Yoshiki Sunada

    • Aalto University
    • The University of Tokyo
    • QCD Labs, QTF Centre of Excellence, Aalto University

  Authors

  • Yoshiki Sunada

    • Aalto University
    • The University of Tokyo
    • QCD Labs, QTF Centre of Excellence, Aalto University

  • András M Gunyhó

    • QCD Labs, QTF Centre of Excellence, Aalto University
    • Aalto University

  • Ashish Panigrahi

    • QCD Labs, QTF Centre of Excellence, Aalto University

  • Jonatan Albanese

    • QCD Labs, QTF Centre of Excellence, Aalto University

  • Mikko Möttönen

    • QCD Labs, QTF Centre of Excellence, Aalto University
    • Aalto University

  View abstract →

• Relaxation Mechanisms of Transmon Qubits Far Detuned from Readout Resonators

  ORAL

  March 19, 2025, 11:42 AM – March 19, 2025, 11:54 AM

  Presenters

  • Jian Shi

    • Rensselaer Polytechnic Institute

  Authors

  • Jian Shi

    • Rensselaer Polytechnic Institute

  • Hong Qiao

    • University of Chicago

  • Shiheng Li

    • University of Chicago
    • Univ of Chicago

  • Yash J Joshi

    • University of Chicago

  • Xuntao Wu

    • University of Chicago

  • Haoxiong Yan

    • Applied Materials
    • University of Chicago

  • Jacob M Miller

    • University of Chicago

  • Alexander Anferov

    • University of Chicago

  • Christopher R Conner

    • University of Chicago

  • Gustav Andersson

    • University of Chicago

  • Amber M King

    • University of Chicago

  • Howard L Malc

    • University of Chicago

  • Harsh Mishra

    • University of Chicago

  • Minseok Ryu

    • University of Chicago

  • Andrew N Cleland

    • University of Chicago

  View abstract →

• Efficient Discrimination of Multiplexed Superconducting-Qubit States using Next-Generation Reservoir Computing

  ORAL

  March 19, 2025, 11:54 AM – March 19, 2025, 12:06 PM

  Presenters

  • Robert M Kent

    • The Ohio State University

  Authors

  • Robert M Kent

    • The Ohio State University

  • Benjamin Lienhard

    • Princeton University

  • Daniel J Gauthier

    • Ohio State University

  View abstract →

• High-frequency transmon readout free from multi-excitation resonances

  ORAL · Invited

  March 19, 2025, 12:06 PM – March 19, 2025, 12:42 PM

  Presenters

  • Thomas Connolly

    • Yale University

  Authors

  • Thomas Connolly

    • Yale University

  View abstract →

• Benchmarking Qubit Reset Techniques that leverage fast advanced control flows and doubly-thresholded readout

  ORAL

  March 19, 2025, 12:42 PM – March 19, 2025, 12:54 PM

  Presenters

  • Rohit Navarathna

    • Qblox
    • Qblox B.V.

  Authors

  • Rohit Navarathna

    • Qblox
    • Qblox B.V.

  • Daniel J Weigand

    • Qblox

  • Robert Sokolewicz

    • Qblox B.V.

  • Thomas Middelburg

    • Qblox B.V.

  • Francesco Maio

    • Qblox
    • Qblox B.V.

  • Calin Sindile

    • Qblox
    • Qblox B.V.

  • Jordy Gloudemans

    • Qblox
    • Qblox B.V.

  • Jules van Oven

    • QBlox

  • Cornelis C Bultink

    • QBlox
    • Qblox
    • Qblox B.V.

  View abstract →

• Quantum Readout Error Mitigation and Precision Metric Based on Detector Tomography

  ORAL

  March 19, 2025, 12:54 PM – March 19, 2025, 1:06 PM

  Publication: Aasen, A.S., Di Giovanni, A., Rotzinger, H. et al. Readout error mitigated quantum state tomography tested on superconducting qubits. Commun Phys 7, 301 (2024). https://doi.org/10.1038/s42005-024-01790-8
  
  Di Giovanni, A., Aasen, A.S., Rotzinger, H. et al. Understanding readout errors in multiplexed superconducting qubit experiments
  using detector tomography. In preparation.
  
  Di Giovanni, A., Rotzinger, H. et al. Correlation-conscious optimization of multiplexed qubit readout. In preparation.

  Presenters

  • Andras Di Giovanni

    • Karlsruhe Institute of Technology

  Authors

  • Andras Di Giovanni

    • Karlsruhe Institute of Technology

  • Adrian S Aasen

    • Heidelberg University

  • Jürgen Lisenfeld

    • Karlsruhe Institute of Technology

  • Martin Gärttner

    • Friedrich-Schiller-Universität Jena

  • Hannes Rotzinger

    • Karlsruhe Institute of Technology

  • Alexey V Ustinov

    • Karlsruhe Institute of Technology

  View abstract →

• Characterization of Pound-Drever-Hall Techniques for Transmon Qubits

  ORAL

  March 19, 2025, 1:06 PM – March 19, 2025, 1:18 PM

  Publication: NIL

  Presenters

  • Ibukunoluwa A Adisa

    • University of Maryland College Park

  Authors

  • Ibukunoluwa A Adisa

    • University of Maryland College Park

  • Won Chan Lee

    • University of Maryland College Park

  • Martin Ritter

    • University of Maryland College Park

  • Kevin C Cox

    • US Army Res Dev & Eng Command

  • Alicia J Kollár

    • University of Maryland College Park

  View abstract →

• Exploring improved readout in dispersively coupled fluxonium qubits

  ORAL

  March 19, 2025, 1:18 PM – March 19, 2025, 1:30 PM

  Presenters

  • Chunyang Ding

    • Stanford University
    • University of Chicago

  Authors

  • Chunyang Ding

    • Stanford University
    • University of Chicago

  • Paul R Varosy

    • Stanford University

  • Chuyao Tong

    • Stanford
    • Stanford University
    • ETH Zurich

  • Alex A Chapple

    • Universite de Sherbrooke
    • Université de Sherbrooke

  • Alexander McDonald

    • Université de Sherbrooke

  • Tianpu Zhao

    • Northwestern University

  • Danyang Chen

    • Northwestern University

  • Sai Pavan Chitta

    • Northwestern University

  • Boris M Varbanov

    • Université de Sherbrooke

  • Alexandre Blais

    • Université de Sherbrooke

  • Jens Koch

    • Northwestern University

  • David I Schuster

    • Stanford University

  View abstract →

• Fluxonium readout prevented by coherent destruction of tunneling

  ORAL

  March 19, 2025, 1:30 PM – March 19, 2025, 1:42 PM

  Presenters

  • Alexandru Petrescu

    • Mines Paris

  Authors

  • Alexis Jouan

    • Ecole Normale Superieure de Lyon

  • Joachim Cohen

    • Alice & Bob
    • Alice&Bob

  • Alexandru Petrescu

    • Mines Paris

  • Réouven Assouly

    • Massachussets Institute of Technology
    • Ecole Normale Superieure de Lyon

  • Denis Bénâtre

    • Karlsruhe Institute of Technology
    • Ecole Normale Superieure de Lyon

  • Rémy Dassonneville

    • Ecole Normale Superieure de Lyon

  • Antoine Essig

    • Ecole Normale Superieure de Lyon

  • Jeremy Stevens

    • ALICE & BOB
    • Ecole Normale Superieure de Lyon

  • Audrey Bienfait

    • Ecole Normale Superieure de Lyon

  • Benjamin Huard

    • Ecole Normale Superieure de Lyon

  View abstract →

• Modeling fluxonium readout with Floquet dynamics and two-level systems

  ORAL

  March 19, 2025, 1:42 PM – March 19, 2025, 1:54 PM

  Presenters

  • Matthew Thibodeau

    • University of Illinois at Urbana-Champaign

  Authors

  • Matthew Thibodeau

    • University of Illinois at Urbana-Champaign

  • Aayam Bista

    • University of Illinois at Urbana-Champaign

  • Angela Kou

    • University of Illinois at Urbana-Champaign

  • Bryan K Clark

    • University of Illinois at Urbana-Champaign

  View abstract →

• Optimizing fluxonium readout fidelity and non-demolition character using quantum optimal control

  ORAL

  March 19, 2025, 1:54 PM – March 19, 2025, 2:06 PM

  Presenters

  • Simon Richer

    • Université de Sherbrooke

  Authors

  • Simon Richer

    • Université de Sherbrooke

  • Elie Genois

    • Universite de Sherbrooke
    • Google Quantum AI
    • Université de Sherbrooke

  • Ronan Gautier

    • ALICE & BOB

  • Alexandre Blais

    • Université de Sherbrooke

  View abstract →

• Superconducting Qubit Readout with a Pulse Pumped Floquet-mode Josephson Traveling Wave Parametric Amplifier

  ORAL

  March 19, 2025, 2:06 PM – March 19, 2025, 2:18 PM

  Presenters

  • Daniela Zaidenberg

    • Massachusetts Institute of Technology

  Authors

  • Daniela Zaidenberg

    • Massachusetts Institute of Technology

  • Anselme Massimo

    • Atlantic Quantum

  • Jennifer Wang

    • Massachusetts Institute of Technology

  • Kaidong Peng

    • Massachusetts Institute of Technology

  • Andres Esteban Lombo

    • Massachusetts Institute of Technology

  • Ants Remm

    • ETH Zurich

  • Alec Yen

    • Massachusetts Institute of Technology

  • Tim Menke

    • Atlantic Quantum

  • Simon Gustavsson

    • Atlantic Quantum

  • Bharath Kannan

    • Atlantic Quantum

  • Kevin P O'Brien

    • Massachusetts Institute of Technology

  View abstract →