Quantum Gates

Tunable coupler enabling two-qubit gates approaching 99.9% fidelity

Quantum Optics

Engineering quantum interference to protect giant artificial atoms coupled to open waveguides

Quantum Engineering

24-pin package routing input/output signals that control a quantum processor

Quantum-Limited Amplifiers

Near-quantum-limited traveling wave parametric amplifiers (TWPAs)

Quantum Workforce

Vibrant team of post docs, graduate students, and undergraduate researchers

Quantum Hollywood Squares

High-connectivity in the age of online group meetings

Quantum Circuits

Integrated quantum circuits fabricated on 200 mm silicon wafers

Quantum Control

Controlling quantum systems with microwave pulses

Quantum Interference

Landau-Zener-Stueckelberg quantum interference realized with superconducting qubits.

Quantum Systems

Engineering physics in the pursuit of coherent quantum systems and extensible technologies

Mission:

We are a diverse team of physicists and engineers working together to understand, design, manufacture, and control coherent quantum systems comprising superconducting artificial atoms (qubits) for quantum information science and technology applications. Our efforts span fundamental research to applied physics and systems engineering.

Recent News:

9/9/2021 – Nathan Holman (Mark Eriksson group at UW-Madison) and co-authors’ manuscript “3D integration and measurement of a semiconductor double quantum dot with a high-impedance TiN resonator” published in npj Quantum Information

6/16/2021 – Youngkyu’s manuscript “Realization of High-Fidelity CZ and ZZ-Free iSWAP Gates with a Tunable Coupler” published in Physical Review X

6/2/2021 – SuperUROP Grecia Castelazo awarded the Joel Matthew Orloff Award

6/2/2021 – SuperUROP Thao Dinh awarded the Malcolm Cotton Brown Award

5/4/2021 – Postdoctoral Associate Patrick Harrington awarded IC Postdoctoral Research Fellowship

Recent Publications:

Mediated interactions beyond the nearest neighbor in an array of superconducting qubits
Y. Yanay, J. Braumüller, T. P. Orlando, S. Gustavsson, C. Tahan, W. D. Oliver
arXiv:2110.01699 (2021)

3D integration and measurement of a semiconductor double quantum dot with a high-impedance TiN resonator
N. Holman, D. Rosenberg, D. Yost, J. L. Yoder, R. Das, W. D. Oliver, R. McDermott, M. A. Eriksson
npj Quantum Information 7, 137 (2021)

Hexagonal Boron Nitride (hBN) as a Low-loss Dielectric for Superconducting Quantum Circuits and Qubits
J. I-J. Wang, M. A. Yamoah, Q. Li, A. Karamlou, T. Dinh, B. Kannan, J. Braumueller, D. Kim, A. J. Melville, S. E. Muschinske, B. M. Niedzielski, K. Serniak, Y. Sung, R. Winik, J. L. Yoder, M. Schwartz, K. Watanabe, T. Taniguchi, T. P. Orlando, S. Gustavsson, P. Jarillo-Herrero, W. D. Oliver
arXiv:2109.00015 (2021)

Building a Quantum Engineering Undergraduate Program
A. Asfaw, A. Blais, K. R. Brown, J. Candelaria, C. Cantwell, L. D. Carr, J. Combes, D. M. Debroy, J. M. Donohue, S. E. Economou, E. Edwards, M. F. J. Fox, S. M. Girvin, A. Ho, H. M. Hurst, Z. Jacob, B. R. Johnson, E. Johnston-Halperin, R. Joynt, E. Kapit, J. Klein-Seetharaman, M. Laforest, H. J. Lewandowski, T. W. Lynn, C. R. H. McRae, C. Merzbacher, S. Michalakis, P. Narang, W. D. Oliver, J. Palsberg, D. P. Pappas, M. G. Raymer, D. J. Reilly, M. Saffman, T. A. Searles, J. H. Shapiro, C. Singh
arXiv:2108.01311 (2021)

Quantum transport and localization in 1d and 2d tight-binding lattices
A. H. Karamlou, J. Braumüller, Y. Yanay, A. Di Paolo, P. Harrington, B. Kannan, D, Kim, M. Kjaergaard, A. Melville, S. Muschinske, B. Niedzielski, A. Vepsäläinen, R. Winik, J. L. Yoder, M. Schwartz, C. Tahan, T. P. Orlando, S. Gustavsson, W, D. Oliver
arXiv:2107.05035 (2021)