Superconducting Materials: Tantalum Films

Presentations

• Millisecond lifetimes and coherence times in 2D transmon qubits

  Invited-In-person · Invited

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

  Presenters

  • Faranak Bahrami

    • Princeton University

  Authors

  • Faranak Bahrami

    • Princeton University

  • Matthew Bland

    • Princeton University

  • Jeronimo Martinez

    • Princeton University

  • Paal Prestegaard

    • Princeton University

  • Basil Smitham

    • Princeton University

  • Atharv Joshi

    • Princeton University

  • Elizabeth Hedrick

    • Princeton University

  • Shashwat Kumar

    • Princeton University

  • Ambrose Yang

  • Alexander Pakpour-Tabrizi

  • Apoorv Jindal

    • Princeton University

  • Ray Chang

    • Princeton University

  • Guangming Cheng

  • Nan Yao

  • Robert Cava

    • Princeton University

  • Nathalie de Leon

    • Princeton University

  • Andrew Houck

    • Princeton University

  View abstract →

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

  Oral-In-person

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

  Presenters

  • Rohith Acharya

    • IMEC

  Authors

  • Rohith Acharya

    • IMEC

  • Daniel Perez Lozano

  • Tsvetan Ivanov

  • Shana Massar

  • Christa Vrancken

  • Yann Canvel

  • Yanan Li

  • A. M. Vadiraj

    • imec

  • Massimo Mongillo

  • Danny Wan

  • Anton Potocnik

    • IMEC

  • Kristiaan DeGreve

  View abstract →

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

  Oral-In-person

  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

    • New York University (NYU)

  • Frederik Knudsen

  • Logan Kusher

    • New York University

  • Patrick Strohbeen

    • New York University (NYU)

  • Axel Leblanc

  • David Perconte

  • 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-In-person

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

  Presenters

  • Kevin Grossklaus

    • MIT Lincoln Laboratory

  Authors

  • Kevin Grossklaus

    • MIT Lincoln Laboratory

  • Felipe Contipelli

    • MIT Lincoln Laboratory

  • Kunal Tiwari

    • MIT Lincoln Laboratory

  • Christopher O'Connell

  • Serra Erdamar

  • Benjamin Freiman

  • Alec Emser

    • MIT Lincoln Laboratory

  • Michael Gingras

    • MIT Lincoln Laboratory

  • Bethany Niedzielski

  • Dan Calawa

  • Mollie 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-In-person

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

  Presenters

  • Chung-Ting Ke

    • Academia Sinica

  Authors

  • Zhen-Wei Xu

  • Wei-Lun Peng

  • Chen-Hsun Ma

  • Jun-Yi Tsai

    • Research Center for Critical Issues, Academia Sinica

  • Chii-Dong Chen

  • Yung-Fu Chen

  • Cen-Shawn Wu

  • Chung-Ting Ke

    • Academia Sinica

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• Improving Performance of Tantalum Resonators through Deposition, Part I

  Oral-In-person

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

  Presenters

  • Lingda Kong

    • Cornell University

  Authors

  • Lingda Kong

    • Cornell University

  • Maciej Olszewski

    • Cornell University

  • Simon Reinhardt

  • Daniel Tong

  • Shiling Du

  • Haoran Lu

    • Cornell University

  • Saswata Roy

    • Cornell University

  • Aleksandra Biedron

  • David Muller

    • Cornell University

  • Valla Fatemi

    • Cornell University

  View abstract →

• Improving Performance of Tantalum Resonators through Deposition, Part II

  Oral-In-person

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

  Presenters

  • Maciej Olszewski

    • Cornell University

  Authors

  • Maciej Olszewski

    • Cornell University

  • Lingda Kong

    • Cornell University

  • Simon Reinhardt

  • Daniel Tong

  • Shilling Du

  • Haoran Lu

    • Cornell University

  • Saswata Roy

    • Cornell University

  • Aleksandra Biedron

  • David Muller

    • Cornell University

  • Valla Fatemi

    • Cornell University

  View abstract →

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

  Oral-In-person

  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 Lee

    • Princeton University

  Authors

  • Maxwel Lee

    • Princeton University

  • Faranak Bahrami

    • Princeton University

  • Ray Chang

    • Princeton University

  • Elizabeth Hedrick

    • Princeton University

  • Danny Thach

  • Nathalie de Leon

    • Princeton University

  • Andrew Houck

    • Princeton University

  View abstract →

• Abstract Withdrawn

  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-In-person

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

  Presenters

  • Graham Norris

    • AWS Center for Quantum Computing

  Authors

  • Graham Norris

    • AWS Center for Quantum Computing

  • Cliff Chen

  • Zhuoxian Wang

  • Rohan Sanil

  • Adrian Llanos

  • David Perello

  • Ignace Jarrige

  • Hesam Moradinejad

  • Yuki Sato

  • Matt Matheny

  • Jiansong Gao

    • AWS Center for Quantum Computing

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• Impact of Annealing on Superconducting Properties of Tantalum Thin Film

  Oral-In-person

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

  Presenters

  • Maithilee Shinde

    • Illinois Institute of Technology

  Authors

  • Maithilee Shinde

    • Illinois Institute of Technology

  • Zuhawn Sung

    • Fermi National Accelerator Laboratory (FNAL)

  • Jaeyel Lee

    • Fermi National Accelerator Laboratory

  • Mustafa Bal

    • Fermi National Accelerator Laboratory (Fermilab)

  • Francesco Crisa

  • Sabrina Garattoni

    • Fermilab

  • John Zasadzinski

    • Illinois Institute of Technology

  • Akshay Murthy

    • Fermi National Accelerator Laboratory (Fermilab)

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• Eliminating surface oxides of superconducting circuits with Damascene fabrication

  Oral-In-person

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

  Presenters

  • Ray Chang

    • Princeton University

  Authors

  • Ray Chang

    • Princeton University

  • Alexander Pakpour-Tabrizi

  • Matthew Bland

    • Princeton University

  • Faranak Bahrami

    • Princeton University

  • Bert Harrop

  • Andrew Houck

    • Princeton University

  • Nathalie de Leon

    • Princeton University

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

  Oral-In-person

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

  Presenters

  • Roberto Negrin

    • ALICE & BOB

  Authors

  • Roberto Negrin

    • ALICE & BOB

  View abstract →