Quantum Transport

Creating synthetic electromagnetic fields to emulate the dynamics of charged particles in a 16-qubit lattice

Quantum Entanglement

Characterizing volume-law and area-law entanglement in a 16-qubit processor

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:

1/10/2025 – Professor Will Oliver teaches at KAIST-MIT Quantum Winter School

12/16/2024 – Professor William Oliver elected fellow of the Institute of Electrical and Electronics Engineers (IEEE)

12/13/2024 – David and collaborators’ manuscript, “Suppressing Counter-Rotating Errors for Fast Single-Qubit Gates with Fluxonium,” was published in PRX Quantum!

12/07/2024 – Holiday Greetings from EQuS

12/04/2024 – Andy and collaborators’ manuscript, “Application of Weighted Chebyshev Approximation in Pulse Design for Quantum Gates,” was published in 2024 IEEE Workshop on Signal Processing Systems (SiPS)!

 

 

Recent Publications:

Ultra-dispersive resonator readout of a quantum-dot qubit using longitudinal coupling
B. Harpt, J. Corrigan, N. Holman, P. Marciniec, D Rosenberg, D. Yost, D. Das, R. Ruskov, C. Tahan, W. D. Oliver, R. McDermott, M. Friesen, M.A. Eriksson
Nature Communications 16, 329 (2025) | arXiv:2407.08869 (2024)

Efficient Qubit Calibration by Binary-Search Hamiltonian Tracking
F. Berritta, J. Benestad, L. Pahl, M. Mathews, J. A. Krzywda, R. Assouly, Y. Sung, D. K. Kim, B. M. Niedzielski, K. Serniak, M. E. Schwartz, J. L. Yoder, A. Chatterjee, J. A. Grover, J. Danon, W. D. Oliver, F. Kuemmeth
arXiv:2501.05386 (2025)

Dissipative Landau-Zener tunneling in the crossover regime from weak to strong environment coupling
X. Dai, R. Trappen, H. Chen, D. Melanson, M. A. Yurtalan, D. M. Tennant, A. J. Martinez, Y. Tang, E. Mozgunov, J. Gibson, J. A. Grover, S. M. Disseler, J. I. Basham, S. Novikov, R. Das, A. J. Melville, B. M. Niedzielski, C. F. Hirjibehedin, K. Serniak, S. J. Weber, J. L. Yoder, W. D. Oliver, K. M. Zick, D. A. Lidar, A. Lupascu
Nature Communications 16, 329 (2025) | arXiv:2207.02017 (2022)

Suppressing Counter-Rotating Errors for Fast Single-Qubit Gates with Fluxonium 
D. A. Rower, L. Ding, H. Zhang, M. Hays, J. An, P. M. Harrington, I. T. Rosen, J. M. Gertler, T. M. Hazard, B. M. Niedzielski, M.E. Schwartz, S. Gustavsson, K. Serniak, J. A. Grover, W. D. Oliver
PRX Quantum 5, 040342 (2024) | arXiv:2406.08295 (2024)

Application of Weighted Chebyshev Approximation in Pulse Design for Quantum Gates
Q. Ding, A. V. Oppenheim, P. T. Boufounos, S. Gustavsson, J. A. Grover, T. A. Baran, W. D. Oliver
2024 IEEE Workshop on Signal Processing Systems (SiPS), Nov 4-6 (2024)