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 Systems

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

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 Hollywood Squares

High-connectivity in the age of online group meetings

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:

9/3/2020 – Uwe’s manuscript “Two-qubit spectroscopy of spatiotemporally correlated quantum noise in superconducting qubits” published in the inaugural issue of PRX Quantum

8/26/2020 – Antti’s manuscript “Impact of ionizing radiation on superconducting qubit coherence” published in Nature.

8/12/2020 – EQuS group members organize and lead a week-long quantum summer camp for high school students

7/29/2020 – Bharaths’s manuscript “Waveguide quantum electrodynamics with superconducting artificial giant atoms” published in Nature

 

Recent Publications:

Two-qubit spectroscopy of spatiotemporally correlated quantum noise in superconducting qubits
U. von Lüpke, F. Beaudoin, L. M. Norris, Y. Sung, R. Winik, J. Y. Qiu, M. Kjaergaard, D. Kim, J. Yoder, S. Gustavsson, L. Viola, W. D. Oliver
PRX Quantum 1, 010305 (2020) | arXiv:1912.04982 (2019)

Impact of ionizing radiation on superconducting qubit coherence
A. P. Vepsäläinen, A. H. Karamlou, J. L. Orrell, A. S. Dogra, B. Loer, F. Vasconcelos, D. K. Kim, A. J. Melville, B. M. Niedzielski, J. L. Yoder, S. Gustavsson, J. A. Formaggio, B. A. VanDevender, W. D. Oliver
Nature 584, 551-556 (2020) | arXiv:2001.09190 (2020)
See also: Press release from MIT News Office

Waveguide quantum electrodynamics with giant superconducting artificial atoms
B. Kannan, M. Ruckriegel, D. Campbell, A. F. Kockum, J. Braumüller, D. Kim, M. Kjaergaard, P. Krantz, A. Melville, B.M. Niedzielski, A. Vepsäläinen, R. Winik, J. Yoder, F. Nori, T. P. Orlando, S. Gustavsson, W. D. Oliver
Nature 583, 775–779 (2020) | arXiv:1912.12233 (2019)
See also: Press release from MIT News Office

Comparison of dielectric loss in titanium nitride and aluminum superconducting resonators
A. Melville, G. Calusine, W. Woods, K. Serniak, E. Golden, B. M. Niedzielski, D. K. Kim, A. Sevi, J. L. Yoder, E. A. Dauler, W. D. Oliver
arXiv:2007.07338 (2020)