Quantum Gates

High-fidelity two-qubit gates exceeding 99.9% with fluxonium qubits

Quantum Chirality

On-demand directional microwave photon emission using waveguide quantum electrodynamics

Quantum Microwaves

Single-mode and two-mode squeezed microwave photons using a traveling wave parametric amplifier

Quantum Materials

Integrating van der Waals materials with superconducting qubits and cavity QED

Quantum by Design

Engineering three-body electromagnetic interactions using superconducting circuits for multiqubit gates

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 Workforce

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

Quantum Hollywood Squares

High-connectivity in the age of online group meetings

Quantum Engineering

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

Quantum Circuits

Integrated quantum circuits fabricated on 200 mm silicon wafers

Quantum Interference

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

Quantum Control

Controlling quantum systems with microwave pulses

Quantum-Limited Amplifiers

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

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:

09/25/2023 -Leon, Max, and collaborators’ manuscript, “High-Fidelity, Frequency-Flexible Two-Qubit Fluxonium Gates with a Transmon Coupler,” was published in Physical Review X!

08/29/2023 – Cora, Amir, and collaborators’ manuscript, “Learning-based Calibration of Flux Crosstalk in Transmon Qubit Arrays,” was published in Physical Review Applied.

06/30/2023 – David, Lamia, and collaborators’ manuscript, “Evolution of 1/f Flux Noise in Superconducting Qubits with Weak Magnetic Fields,” was published in Physical Review Letters!

05/27/2023 – Cora and her team win the 2023 NCAA Division III National Championship

5/26/2023 – Beatriz Yankelevich selected for 2023 Hertz Fellowship

 

Recent Publications:

Longitudinal coupling between a Si/SiGe quantum dot and an off-chip TiN resonator
J. Corrigan, B. Harpt, N. Holman, R. Ruskov, P. Marciniec, D. Rosenberg, D. Yost, R. Das, W. D. Oliver, R. McDermott, C. Tahan, M. Friesen, M. A. Eriksson
Physical Review Appl. 20,064005 (2023) | arXiv:2212.02736 (2022)

Characterization of superconducting through-silicon vias as capacitive elements in quantum circuits 
T. M. Hazard, W. Woods, D. Rosenberg, R. Das, C. F. Hirjibehedin, D. K. Kim, J. Knecht, J. Mallek, A. Melville, B. M. Niedzielski, K. Serniak, K. M. Sliwa, D. Ruth-Yost, J. L. Yoder, W. D. Oliver, M. E. Schwartz
arXiv:2308.00834 (2023) | Appl. Phys. Lett. 123, 154004 (2023) 

High-Fidelity, Frequency-Flexible Two-Qubit Fluxonium Gates with a Transmon Coupler
L. Ding, M. Hays, Y. Sung, B. Kannan, J. An, A. Di Paolo, A. H. Karamlou, T. M. Hazard, K. Azar, D. K. Kim, B. M. Niedzielski, A. Melville, M. E. Schwartz, J. L. Yoder, T. P. Orlando, S. Gustavsson, J. A. Grover, K. Serniak, W.D. Oliver
Physical Review X 13, 031035 (2023) | arXiv:2304.06087 (2023)
See also: Press Release from MIT News Office

Learning-based Calibration of Flux Crosstalk in Transmon Qubit Arrays
C. N. Barrett, A. H. Karamlou, S. E. Muschinske, I. T. Rosen, J. Braumüller, R. Das, D. K. Kim, B. M. Niedzielski, M. Schuldt, K. Serniak, M. E. Schwartz, J. L. Yoder, T. P. Orlando, S. Gustavsson, J. A. Grover, W. D. Oliver
Phys. Rev. Applied 20, 024070 | arXiv:2303.03347 (2023) 

Decoherence of a tunable capacitively shunted flux qubit
R. Trappen, X. Dai, M. A. Yurtalan, D. Melanson, D. M. Tennant, A. J. Martinez, Y. Tang, J. Gibson, J. A. Grover, S. M. Disseler, J. I. Basham, R. Das, D. K. Kim, A. J. Melville, B. M. Niedzielski, C. F. Hirjibehedin, K. Serniak, S. J. Weber, J. L. Yoder, W. D. Oliver, D. A. Lidar, A. Lupascu
arXiv:2307.13961 (2023)​