Superconducting Materials: Tantalum Films

Presentations

• Millisecond lifetimes and coherence times in 2D transmon qubits

  ORAL · Invited

  March 18, 2026, 3:30 PM – March 18, 2026, 4:06 PM

  Presenters

  • Faranak Bahrami

    • Princeton University

  Authors

  • Faranak Bahrami

    • Princeton University

  • Matthew P Bland

    • Princeton University

  • Jeronimo G Martinez

    • Princeton University

  • Paal H Prestegaard

    • Princeton University

  • Basil M Smitham

    • Princeton University

  • Atharv Joshi

    • Princeton University

  • Elizabeth Hedrick

    • Princeton University

  • Shashwat Kumar

    • Princeton University

  • Ambrose Yang

    • Princeton University

  • Alexander Pakpour-Tabrizi

    • Princeton University

  • Apoorv Jindal

    • Princeton University

  • Ray D Chang

    • Princeton University

  • Guangming Cheng

    • Princeton University

  • Nan Yao

    • princeton university
    • Princeton University

  • Robert Joseph Cava

    • Princeton University

  • Nathalie P de Leon

    • Princeton University

  • Andrew A Houck

    • Princeton University

  View abstract →

• Ultra-high-Q α-Tantalum resonators on 300-mm silicon wafers

  ORAL

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

  Presenters

  • Rohith Acharya

    • IMEC
    • imec

  Authors

  • Rohith Acharya

    • IMEC
    • imec

  • Daniel Perez Lozano

    • IMEC
    • imec

  • Tsvetan Ivanov

    • IMEC
    • imec

  • Shana Massar

    • IMEC
    • imec

  • Christa Vrancken

    • IMEC

  • Yann Canvel

    • IMEC
    • imec

  • Yanan Li

    • IMEC
    • imec

  • A. M. Vadiraj

    • imec

  • Massimo Mongillo

    • IMEC
    • Imec
    • imec

  • Danny Wan

    • IMEC
    • Imec
    • imec

  • Anton Potocnik

    • IMEC
    • imec

  • Kristiaan De Greve

    • IMEC
    • imec

  View abstract →

• Room-Temperature-Compatible α-Tantalum Growth on Niobium-Seeded Silicon for Low-Loss Superconducting Circuits

  ORAL

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

  Presenters

  • Nichae Adnan

    • New York University (NYU)

  Authors

  • Nichae Adnan

    • New York University (NYU)

  • Maryam Barzegar

    • New York University (NYU)

  • Ido Levy

    • New York University (NYU)

  • Arunav Bordoloi

    • University of Maryland College Park
    • New York University (NYU)
    • New York University

  • Frederik Knudsen

    • New York University

  • Logan Kushner

    • New York University
    • New York University (NYU)

  • Patrick J Strohbeen

    • New York University (NYU)

  • Axel Leblanc

    • New York University (NYU)
    • New York University

  • David Perconte

    • New York University

  • jechiel van Dijk

    • New York University

  • Lukas Baker

    • New York University (NYU)

  • Melissa Mikalsen

    • New York University (NYU)

  • Jacob Issokson

    • New York University

  • Javad Shabani

    • New York University

  View abstract →

• Deposition and Characterization of Superconducting Tantalum/Aluminum Bilayers

  ORAL

  March 18, 2026, 4:30 PM – March 18, 2026, 4:42 PM

  Presenters

  • Kevin A Grossklaus

    • MIT Lincoln Laboratory

  Authors

  • Kevin A Grossklaus

    • MIT Lincoln Laboratory

  • Felipe Contipelli

    • MIT Lincoln Laboratory

  • Kunal L Tiwari

    • MIT Lincoln Laboratory

  • Christopher O'Connell

    • MIT Lincoln Laboratory

  • Serra Erdamar

    • MIT Lincoln Laboratory

  • Benjamin R Freiman

    • MIT Lincoln Laboratory

  • Alec L Emser

    • MIT Lincoln Laboratory

  • Michael A Gingras

    • MIT Lincoln Laboratory

  • Bethany M Niedzielski

    • MIT Lincoln Laboratory

  • Dan Calawa

    • MIT Lincoln Laboratory

  • Mollie E. Schwartz

    • MIT Lincoln Laboratory

  • Kyle Serniak

    • MIT Lincoln Laboratory

  View abstract →

• Characterization of room temperature-grown Tantalum superconducting films with an Aluminum buffer layer

  ORAL

  March 18, 2026, 4:42 PM – March 18, 2026, 4:54 PM

  Presenters

  • Chung-Ting Ke

    • Academia Sinica
    • Research Center for Critical Issues, Academia Sinica

  Authors

  • Zhen-Wei Xu

    • Academia Sinica

  • Wei-Lun Peng

    • National Changhua University of Education
    • Graduate Institute of Photonics, National Changhua University of Education

  • Chen-Hsun Ma

    • National Taiwan University

  • Jun-Yi Tsai

    • Center for Critical Issues, Academia Sinica, Taiwan
    • Research Center for Critical Issues, Academia Sinica
    • Academia Sinica

  • Chii-Dong Chen

    • Academia Sinica

  • Yung-Fu Chen

    • National Central University

  • Cen-Shawn Wu

    • Department of Physics, National Changhua University of Education
    • National Changhua University of Education

  • Chung-Ting Ke

    • Academia Sinica
    • Research Center for Critical Issues, Academia Sinica

  View abstract →

• Improving Performance of Tantalum Resonators through Deposition, Part I

  ORAL

  March 18, 2026, 4:54 PM – March 18, 2026, 5:06 PM

  Presenters

  • Lingda Kong

    • Cornell University

  Authors

  • Lingda Kong

    • Cornell University

  • Maciej Wojciech Olszewski

    • Cornell University

  • Simon Reinhardt

    • Cornell University

  • Daniel Tong

    • Cornell University

  • Shiling Du

    • Cornell University

  • Haoran Lu

    • Cornell University

  • Saswata Roy

    • Cornell University

  • Aleksandra Biedron

    • NY Creates

  • David Anthony Muller

    • Cornell University

  • Valla Fatemi

    • Cornell University

  View abstract →

• Improving Performance of Tantalum Resonators through Deposition, Part II

  ORAL

  March 18, 2026, 5:06 PM – March 18, 2026, 5:18 PM

  Presenters

  • Maciej Wojciech Olszewski

    • Cornell University

  Authors

  • Maciej Wojciech Olszewski

    • Cornell University

  • Lingda Kong

    • Cornell University

  • Simon Reinhardt

    • Cornell University

  • Daniel Tong

    • Cornell University

  • Shiling Du

    • Cornell University

  • Haoran Lu

    • Cornell University

  • Saswata Roy

    • Cornell University

  • Aleksandra Biedron

    • NY Creates

  • David Anthony Muller

    • Cornell University

  • Valla Fatemi

    • Cornell University

  View abstract →

• Passivating High-Quality Tantalum Resonators with Self Assembled Monolayers (SAMs)

  ORAL

  March 18, 2026, 5:18 PM – March 18, 2026, 5:30 PM

  Publication: M. P. Bland, F. Bahrami, J. G. C. Martinez, P. H. Prestegaard, B. M. Smitham, A. Joshi, E. Hedrick, A. Pakpour-Tabrizi, S. Kumar, A. Jindal, R. D. Chang, A. Yang, G. Cheng, N. Yao, R. J. Cava, N. P. de Leon, and A. A. Houck, "2d transmons with lifetimes and coherence times exceeding 1 millisecond," arXiv preprint, Mar. 2025. arXiv: to be assigned.
  
  K. D. Crowley, R. A. McLellan, A. Dutta, N. Shumiya, A. P. Place, X. H. Le, Y. Gang, T. Madhavan, M. P. Bland, R. Chang, N. Khedkar, Y. C. Feng, E. A. Umbarkar, X. Gui, L. V. Rodgers, Y. Jia, M. M. Feldman, S. A. Lyon, M. Liu, R. J. Cava, A. A. Houck, and N. P. de Leon, "Disentangling losses in tantalum superconducting circuits," Physical Review X, vol. 13, Oct. 2023.
  
  M. Alghadeer, A. Banerjee, A. Hajr, H. Hussein, H. Fariborzi, and S. G. Rao, "Surface passivation of niobium superconducting quantum circuits using self-assembled monolayers," ACS Applied Materials & Interfaces, vol. 15, no. 1, pp. 2319–2328, 2023. PMID: 36573579.

  Presenters

  • Maxwel W Lee

    • Princeton University

  Authors

  • Maxwel W Lee

    • Princeton University

  • Faranak Bahrami

    • Princeton University

  • Ray D Chang

    • Princeton University

  • Elizabeth Hedrick

    • Princeton University

  • Danny Q Thach

    • Princeton University

  • Nathalie P de Leon

    • Princeton University

  • Andrew A Houck

    • Princeton University

  View abstract →

• Abstract Withdrawn

  ORAL · Withdrawn

  March 18, 2026, 5:30 PM – March 18, 2026, 5:42 PM

  View abstract →

• Frequency-dependent two-level system loss in tantalum superconducting resonators

  ORAL

  March 18, 2026, 5:42 PM – March 18, 2026, 5:54 PM

  Presenters

  • Graham J Norris

    • AWS Center for Quantum Computing

  Authors

  • Graham J Norris

    • AWS Center for Quantum Computing

  • Cliff Chen

    • AWS Center for Quantum Computing

  • Zhuoxian Wang

    • AWS Center for Quantum Computing
    • AWS Center for Quantum Computing, Pasadena, 91006, CA, USA

  • Rohan Sanil

    • AWS Center for Quantum Computing

  • Adrian Llanos

    • AWS Center for Quantum Computing

  • David J Perello

    • AWS Center for Quantum Computing

  • Ignace Jarrige

    • AWS Center for Quantum Computing

  • Hesam Moradinejad

    • AWS Center for Quantum Computing

  • Yuki Sato

    • AWS Center for Quantum Computing

  • Matt Matheny

    • AWS Center for Quantum Computing

  • Jiansong Gao

    • AWS Center for Quantum Computing

  View abstract →

• Impact of Annealing on Superconducting Properties of Tantalum Thin Film

  ORAL

  March 18, 2026, 5:54 PM – March 18, 2026, 6:06 PM

  Presenters

  • Maithilee Shinde

    • Illinois Institute of Technology
    • Fermi National Accelerator Laboratory (Fermilab)

  Authors

  • Maithilee Shinde

    • Illinois Institute of Technology
    • Fermi National Accelerator Laboratory (Fermilab)

  • Zuhawn Sung

    • Fermi National Accelerator Laboratory (FNAL)

  • Jaeyel Lee

    • Fermi National Accelerator Laboratory (FNAL)
    • Fermi National Accelerator Laboratory

  • Mustafa Bal

    • Fermi National Accelerator Laboratory (Fermilab)

  • Francesco Crisa

    • Fermi National Accelerator Laboratory
    • Fermi National Accelerator Laboratory (Fermilab)
    • Fermi National Accelerator Laboratory (FNAL)
    • Fermilab

  • Sabrina Garattoni

    • Fermilab
    • Fermi National Accelerator Laboratory (Fermilab)
    • Fermi National Accelerator Laboratory (FNAL)
    • Fermi National Accelerator Laboratory

  • John Francis Zasadzinski

    • Illinois Institute of Technology

  • Akshay A Murthy

    • Fermi National Accelerator Laboratory (Fermilab)

  View abstract →

• Eliminating surface oxides of superconducting circuits with Damascene fabrication

  ORAL

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

  Presenters

  • Ray D Chang

    • Princeton University

  Authors

  • Ray D Chang

    • Princeton University

  • Alexander Pakpour-Tabrizi

    • Princeton University

  • Matthew P Bland

    • Princeton University

  • Faranak Bahrami

    • Princeton University

  • Bert G Harrop

    • Princeton University

  • Andrew A Houck

    • Princeton University

  • Nathalie P de Leon

    • Princeton University

  View abstract →

• GPU-Accelerated, Differentiable Fitting of Transient Correlation Functions for Resonator Characterization

  ORAL

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

  Presenters

  • Roberto Negrin

    • ALICE & BOB

  Authors

  • Roberto Negrin

    • ALICE & BOB

  View abstract →