Superconducting Qubits: Fabrication and Characterization

Presentations

• Niobium Hydride Formation in Superconducting Thin Films during Wet Chemical Processing

  ORAL

  March 15, 2022, 8:00 AM – March 15, 2022, 8:12 AM

  Presenters

  • Dominic P Goronzy

    • Northwestern University
    • Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States

  Authors

  • Dominic P Goronzy

    • Northwestern University
    • Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States

  • Carlos G Torres Castanedo

    • Northwestern University
    • Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States

  • Cameron Kopas

    • Rigetti Computing

  • Jayss Marshall

    • Rigetti Computing
    • Rigetti Quantum Computing

  • Matthew J Reagor

    • Rigetti Computing
    • Rigetti Quantum Computing

  • Michael J Bedzyk

    • Northwestern University
    • Department of Physics and Astronomy, Department of Materials Science and Engineering, Northwestern University

  • Mark C Hersam

    • Northwestern University
    • Materials Science and Engineering, Northwestern University, Evanston, IL 60208

  View abstract →

• Surfaces, Interfaces, and Impurity Elements in Niobium-based Materials for Superconducting Quantum Computing Analyzed by Atom-Probe Tomography

  ORAL

  March 15, 2022, 8:12 AM – March 15, 2022, 8:24 AM

  Presenters

  • Dieter Isheim

    • Northwestern University

  Authors

  • Dieter Isheim

    • Northwestern University

  • Dominic P Goronzy

    • Northwestern University
    • Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States

  • Carlos G Torres Castanedo

    • Northwestern University
    • Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States

  • Michael J Bedzyk

    • Northwestern University
    • Department of Physics and Astronomy, Department of Materials Science and Engineering, Northwestern University

  • Mark C Hersam

    • Northwestern University
    • Materials Science and Engineering, Northwestern University, Evanston, IL 60208

  • James A Sauls

    • Northwestern University

  • Jayss Marshall

    • Rigetti Computing
    • Rigetti Quantum Computing

  • Cameron Kopas

    • Rigetti Computing

  • Mark Field

    • Rigetti Computing

  • Gregory Stiehl

    • Rigetti Computing

  • Hilal Cansizoglu

    • Rigetti Computing

  • Josh Mutus

    • Rigetti Computing

  • Matthew J Reagor

    • Rigetti Computing
    • Rigetti Quantum Computing

  • Michael Harburn

    • Rigetti Computing

  • Alexander Romanenko

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Anna Grassellino

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • David N Seidman

    • Northwestern University

  View abstract →

• Hydride precipitates in Nb thin film superconducting qubits

  ORAL

  March 15, 2022, 8:24 AM – March 15, 2022, 8:36 AM

  Presenters

  • Jaeyel Lee

    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab
    • Fermilab

  Authors

  • Jaeyel Lee

    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab
    • Fermilab

  • ZuHawn Sung

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Akshay A Murthy

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Matthew J Reagor

    • Rigetti Quantum Computing

  • Anna Grassellino

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Alexander Romanenko

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  View abstract →

• Bulk Loss Measurements of III-V Semiconductor Materials in a Microwave Cavity at Single Photon Powers and Millikelvin Temperatures

  ORAL

  March 15, 2022, 8:36 AM – March 15, 2022, 8:48 AM

  Presenters

  • Nicholas Materise

    • Colorado School of Mines

  Authors

  • Nicholas Materise

    • Colorado School of Mines

  • Eliot Kapit

    • Cornell University

  • David Pappas

    • National Institute of Standards and Technology Boulder
    • Rigetti Computing

  • Anthony McFadden

    • University of California, Santa Barbara

  • Haozhi Wang

    • University of Colorado, Boulder
    • University of Maryland, College Park
    • Laboratory for Physical Sciences, College Park, MD 20740, USA

  • William M Strickland

    • New York University (NYU)

  • Javad Shabani

    • New York University (NYU)

  • Joseph Yuan

    • Center for Quantum Phenomena, Department of Physics, New York University
    • New York Univ NYU
    • New York University (NYU)

  • SHENG-XIANG LIN

    • University of Colorado, Boulder

  • Corey Rae H McRae

    • University of Colorado, Boulder

  • John Pitten

    • University of Colorado, Boulder
    • University of Colorado Boulder

  View abstract →

• Identifying Sources of Decoherence at Defects and Interfaces in Superconducting Qubit Systems

  ORAL

  March 15, 2022, 8:48 AM – March 15, 2022, 9:00 AM

  Publication: https://arxiv.org/abs/2108.13539

  Presenters

  • Akshay A Murthy

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  Authors

  • Akshay A Murthy

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Paul M Das

    • Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
    • Northwestern University

  • Cameron J Kopas

    • Rigetti Quantum Computing
    • Rigetti Computing

  • Stephanie M Ribet

    • Department of Materials Science and Engineering, Northwestern University; International Institute of Nanotechnology, Northwestern University
    • Northwestern University

  • Matthew J Reagor

    • Rigetti Quantum Computing

  • Vinayak P Dravid

    • Northwestern University
    • Department of Materials Science and Engineering, Northwestern University; International Institute of Nanotechnology, Northwestern University; NUANCE Center, Northwestern U.

  • Roberto dos Reis

    • Department of Materials Science and Engineering, Northwestern University; NUANCE Center, Northwestern University
    • Northwestern University

  • Mattia Checchin

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Alexander Romanenko

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Anna Grassellino

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  View abstract →

• Understanding and mitigating losses in superconducting radio frequency (SRF) cavities using two-tone spectroscopy

  ORAL

  March 15, 2022, 9:00 AM – March 15, 2022, 9:12 AM

  Presenters

  • Ivan Nekrashevich

    • Los Alamos National Laboratory
    • Los Alamos National Laboratory, Department of Integrated Bio & Nano Systems, University of Houston
    • Superconducting Quantum Materials and Systems, Fermi National Accelerator Laboratory

  Authors

  • Ivan Nekrashevich

    • Los Alamos National Laboratory
    • Los Alamos National Laboratory, Department of Integrated Bio & Nano Systems, University of Houston
    • Superconducting Quantum Materials and Systems, Fermi National Accelerator Laboratory

  • Daniil Frolov

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab
    • Superconducting Quantum Materials and Systems, Fermi National Accelerator Laboratory

  • Roman Pilipenko

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab
    • FNAL
    • Superconducting Quantum Materials and Systems, Fermi National Accelerator Laboratory

  • Bianca Giaccone

    • Fermi National Accelerator Laboratory
    • Fermilab

  • Alexandr Netepenko

    • Fermi National Accelerator Laboratory
    • Fermilab

  • Mattia Checchin

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Sam Posen

    • Fermilab
    • Fermi National Accelerator Laboratory

  • Alexander Romanenko

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Anna Grassellino

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  View abstract →

• Optimization of Nb Superconducting Films for Quantum Devices by H-T Phase Boundary Analysis

  ORAL

  March 15, 2022, 9:12 AM – March 15, 2022, 9:24 AM

  Presenters

  • Kevin M Ryan

    • Northwestern University

  Authors

  • Kevin M Ryan

    • Northwestern University

  • Patrick W Krantz

    • Northwestern University

  • Carlos G Torres Castanedo

    • Northwestern University
    • Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States

  • Paul M Das

    • Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
    • Northwestern University

  • KVLV Narayanachari

    • Northwestern University

  • Dominic P Goronzy

    • Northwestern University
    • Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States

  • Michael J Bedzyk

    • Northwestern University
    • Department of Physics and Astronomy, Department of Materials Science and Engineering, Northwestern University

  • Vinayak P Dravid

    • Northwestern University
    • Department of Materials Science and Engineering, Northwestern University; International Institute of Nanotechnology, Northwestern University; NUANCE Center, Northwestern U.

  • Mark C Hersam

    • Northwestern University
    • Materials Science and Engineering, Northwestern University, Evanston, IL 60208

  • Antony McFadden

    • National Institute of Standards and Technology

  • Corey Rae McRae

    • National Institute of Standards and Technology

  • Mark Field

    • Rigetti Quantum Computing
    • Rigetti Computing

  • Cameron J Kopas

    • Rigetti Quantum Computing
    • Rigetti Computing

  • Jayss Marshall

    • Rigetti Computing
    • Rigetti Quantum Computing

  • Matthew J Reagor

    • Rigetti Quantum Computing

  • Venkat Chandrasekhar

    • Northwestern University

  View abstract →

• Round Robin: multi-institution characterization of superconducting qubits

  ORAL

  March 15, 2022, 9:24 AM – March 15, 2022, 9:36 AM

  Presenters

  • Josh Y Mutus

    • Rigetti Computing Inc

  Authors

  • Josh Y Mutus

    • Rigetti Computing Inc

  • Corey Rae H McRae

    • University of Colorado, Boulder

  • David Pappas

    • National Institute of Standards and Technology Boulder
    • Rigetti Computing

  • Roman Pilipenko

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab
    • FNAL
    • Superconducting Quantum Materials and Systems, Fermi National Accelerator Laboratory

  • Daniil Frolov

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab
    • Superconducting Quantum Materials and Systems, Fermi National Accelerator Laboratory

  • Matthew J Reagor

    • Rigetti Computing
    • Rigetti Quantum Computing

  • Anna Grassellino

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Alexander Romanenko

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  View abstract →

• Scanning Tunneling and Electron Spectroscopies of Nb Surface Oxides for Qubits and SRF Cavities

  ORAL

  March 15, 2022, 9:36 AM – March 15, 2022, 9:48 AM

  Presenters

  • John F Zasadzinski

    • Illinois Institute of Technology
    • Illinois Institute of Technology, Chicago, IL USA

  Authors

  • John F Zasadzinski

    • Illinois Institute of Technology
    • Illinois Institute of Technology, Chicago, IL USA

  • Jasmine Panthee

    • Illinois Institute of Technology, Chicago IL, USA

  • Thomas Proslier

    • CEA, Saclay, France

  • Lin Zhou

    • Ames Laboratory
    • Ames Lab
    • Ames Laboratory, Ames, IA , USA

  • Xiaotian Fang

    • Ames Lab
    • Ames Laboratory, Ames, IA, USA
    • Ames Laboratory

  View abstract →

• Atomic-scale Investigation of the Nb/air Interface for Niobium Radio Frequency Cavity

  ORAL

  March 15, 2022, 9:48 AM – March 15, 2022, 10:00 AM

  Presenters

  • Xiaotian Fang

    • Ames Lab
    • Ames Laboratory, Ames, IA, USA
    • Ames Laboratory

  Authors

  • Xiaotian Fang

    • Ames Lab
    • Ames Laboratory, Ames, IA, USA
    • Ames Laboratory

  • Matthew J Kramer

    • Ames Laboratory
    • Ames Lab

  • Alexander Romanenko

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Anna Grassellino

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Lin Zhou

    • Ames Laboratory
    • Ames Lab
    • Ames Laboratory, Ames, IA , USA

  View abstract →

• Investigation of the π-junction characteristics in Nb/Fe₃O₄/Nb Josephson junctions

  ORAL

  March 15, 2022, 10:00 AM – March 15, 2022, 10:12 AM

  Presenters

  • Yilmaz Simsek

    • Sabanci University Nanotechnology Reseach and Application Center, Tuzla, Istanbul 34956, Turkey

  Authors

  • Derya Farisogullari

    • Sabanci University Nanotechnology Reseach and Application Center, Tuzla, Istanbul 34956, Turkey

  • Yasin Ozturk

    • Sabanci University Nanotechnology Reseach and Application Center, Tuzla, Istanbul 34956, Turkey

  • Tuna Alp

    • Sabanci University Nanotechnology Reseach and Application Center, Tuzla, Istanbul 34956, Turkey

  • Ege Aygit

    • Sabanci University Nanotechnology Reseach and Application Center, Tuzla, Istanbul 34956, Turkey

  • Ara Rahimpour

    • Sabanci University Nanotechnology Reseach and Application Center, Tuzla, Istanbul 34956, Turkey

  • Ozhan Ozatay

    • Department of Physics, Bogazici University, 34342 Bebek/Istanbul, Turkey

  • Yilmaz Simsek

    • Sabanci University Nanotechnology Reseach and Application Center, Tuzla, Istanbul 34956, Turkey

  View abstract →

• Exploring high-coherence overlap junction qubits fabricated with a subtractive etch process

  ORAL

  March 15, 2022, 10:12 AM – March 15, 2022, 10:24 AM

  Presenters

  • Jeroen Verjauw

    • Katholieke Universiteit Leuven, Imec
    • Katholieke Univ Leuven, IMEC
    • IMEC

  Authors

  • Jeroen Verjauw

    • Katholieke Universiteit Leuven, Imec
    • Katholieke Univ Leuven, IMEC
    • IMEC

  • Rohith Acharya

    • Katholieke Universiteit Leuven, Imec
    • Katholieke Univ Leuven, IMEC
    • IMEC

  • Tsvetan Ivanov

    • Imec
    • IMEC

  • Daniel Perez Lozano

    • Chalmers University of Technology
    • IMEC
    • Imec

  • Fahd A. Mohiyaddin

    • imec
    • IMEC
    • Imec

  • Danny Wan

    • Imec
    • IMEC

  • A. M. Vadiraj

    • Imec
    • IMEC

  • Jacques Van Dame

    • Imec

  • Julien Jussot

    • imec
    • IMEC
    • Imec

  • Yann Canvel

    • imec
    • IMEC
    • Imec

  • Xiaoyu Piao

    • Imec

  • Marc Heyns

    • KU Leuven, imec
    • Katholieke Universiteit Leuven, Imec

  • Massimo Mongillo

    • IMEC
    • Imec

  • Anton Potočnik

    • Imec

  • Iuliana P Radu

    • Imec
    • IMEC

  • Bogdan Govoreanu

    • imec
    • IMEC
    • Imec

  View abstract →

• Aluminum air bridges for superconducting quantum devices realized using a single step e-beam process

  ORAL

  March 15, 2022, 10:24 AM – March 15, 2022, 10:36 AM

  Publication: none

  Presenters

  • Noah Janzen

    • University of Waterloo

  Authors

  • Noah Janzen

    • University of Waterloo

  • Michal Kononenko

    • University of Waterloo

  • Shaun Ren

    • University of Waterloo

  • Adrian Lupascu

    • University of Waterloo, Canada
    • University of Waterloo

  View abstract →

• Improving the frequency reproducibility of transmon qubits to lower the crosstalk in quantum processors

  ORAL

  March 15, 2022, 10:36 AM – March 15, 2022, 10:48 AM

  Publication: A. Osman, J. Simon, A. Bengtsson, S. Kosen, P. Krantz, D. P. Lozano, M. Scigliuzzo, P. Delsing, Jonas Bylander, and A. Fadavi Roudsari , "Simplified Josephson junction fabrication process for reproducibly high-performance superconducting qubits", Appl. Phys. Lett. 118, 064002 (2021) https://doi.org/10.1063/5.0037093

  Presenters

  • Amr Osman

    • Chalmers Univ of Tech
    • Chalmers University of Technology

  Authors

  • Amr Osman

    • Chalmers Univ of Tech
    • Chalmers University of Technology

  • Jorge Fernández-Pendás

    • Chalmers Univ of Tech
    • Chalmers University of Technology

  • Sandoko Kosen

    • Chalmers Univ of Tech
    • Chalmers University of Technology

  • Marcus Rommel

    • Chalmers University of Technology
    • Chalmers Univ of Tech

  • Giovanna Tancredi

    • Chalmers Univ of Tech
    • Chalmers University of Technology

  • Anton Frisk Kockum

    • Chalmers University of Technology
    • Chalmers Univ of Tech

  • Jonas Bylander

    • Chalmers Univ of Tech
    • Chalmers University of Technology

  • Anita F Fadavi Roudsari

    • Chalmers University of Technology
    • Chalmers Univ of Tech

  View abstract →

• Probing the Role of Low Temperature Vacuum Baking on Photon Lifetimes in Superconducting Niobium 3-D Resonators

  ORAL

  March 15, 2022, 10:48 AM – March 15, 2022, 11:00 AM

  Publication: D. Bafia, A. Grassellino, and A. Romanenko, arXiv:2108.13352v1

  Presenters

  • Daniel Bafia

    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab
    • Fermi National Accelerator Laboratory

  Authors

  • Daniel Bafia

    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab
    • Fermi National Accelerator Laboratory

  • Anna Grassellino

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  • Alexander Romanenko

    • Fermilab
    • Superconducting Quantum Materials and Systems Center (SQMS), Fermilab

  View abstract →