Quantum Emulation

Flat-Band (De)localization Emulated with a Superconducting Qubit Array

Quantum Interconnect

Emitting and absorbing directional microwave photons to generate remote entanglement

Quantum Transport

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

Quantum Geometry

Investigating quantum geometry and unconventional superconductivity using cQED platforms

Quantum Gates

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

Quantum Entanglement

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

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-Limited Amplifiers

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

Quantum Systems

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

Quantum Control

Controlling quantum systems with microwave pulses

Mission:

We are a creative 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:

5/22/2026 – Melvin, Lukas, David, and collaborators’ manuscript, “Placing and routing quantum LDPC codes in multilayer superconducting hardware,” was published in npj Quantum Information!

5/12/2026 – Junghyun, Max, and collaborators’ manuscript, “Higher-order harmonics in Josephson tunnel junctions due to series inductance,” was published in Nature Physics!

5/7/2026 – EQuS graduate student Maggie Marte wins beam national championship!

5/5/2026 – Aziza, Réouven, Harry, and collaborators’ manuscript, “Probing sensitivity near a quantum exceptional point using waveguide quantum electrodynamics,” was published in Physical Review Letters!

5/1/2026 – EQuS graduate students Vaishnavi Addala and Shantano Jha host collaborators from NVIDIA!

 

 

Recent Publications:

Characterization of aluminum microwave SQUID multiplexers for CEvNS detection
J. Amidei, A. Armatol, C. Augier, L. Bailly-Salins, G. Baulieu, L. Bergé, J. Billard, J. Blé, G. Brenot, G. Bres, J. L. Bret, A. Broniatowski, M. Calvo, A. Cavanna, A. Cazes, E. Celi, D. Chaize, M. Chala, M. Chapellier, L. Chaplinsky, R. Chen, I. Cojocari, J. Colas, L. Couraud, E. Cudmore, M. De Jesus, P. de Marcillac, N. Dombrowski, L. Dumoulin, A. Durnez, R. Faure, S. Ferriol, E. Figueroa-Feliciano, J. A. Formaggio, S. Fuard, J. Gascon, C. Girard-Carillo, A. Giuliani, C. Goy, C. Guerin, L. Haegel, P. M. Harrington, S. A. Hertel, C. F. Hirjibehedin, C. Hoarau, Z. Hong, D. Howard, J. C. Ianigro, Y. Jin, A. Juillard, D. Karaivanov, T. Khussainov, Andrew Kubik, J. Lamblin, T. Le Bellec, L. Leroy, M. Li, A. Lubashevskiy, S. Marnieros, R. Martin, N. Martini, J. Minet, A. Monfardini, F. Mounier, B. M. Niedzielski, V. Novati, W. D. Oliver, E. Olivieri, H. D. Pinckney, D. V. Poda, D. Ponomarev, J. S. Real, F. C. Reyes, A. Rodriguez, S. Rozov, I. Rozova, B. Ryan, D. Sabhari, S. Scorza, K. Serniak, R. Serra, Y. Shevchik, T. Soldner, H. Stickler, C. Stone-Whitehead, C. Ulysse, W. Van De Pontseele, S. Vasilyev, P. Vittaz, S. Weber, E. Wolfe, W. Woods, E. Yakushev, J. Yang, D Zinatulina
arXiv:2605.24272 (2026)

Probing sensitivity near a quantum exceptional point using waveguide quantum electrodynamics
A. Almanakly, R. Assouly, H. H. Kang, M. Gingras, B. M. Niedzielski, H. Stickler, M. E. Schwartz, K. Serniak, M. Hays, J. A. Grover, W. D. Oliver
Physical Review Letters 136, 183601 (2026) | arXiv:2510.21554 (2025)

Placing and routing quantum LDPC codes in multilayer superconducting hardware
M. Mathews, L. Pahl, D. Pahl, V. L. Addala, C. Tang, W. D. Oliver, J. A. Grover
npj Quantum Information (2026) | arXiv:2507.23011 (2025)

Quantum Computing: Enabling Long-Term U.S. Leadership Through a Sustained and Bold Science and Engineering Agenda
W. D. Oliver and Jonathan Ruane
Appearing in Priority Technologies: Ensuring U.S. Security and Shared Prosperity, Ed. Elisabeth Reynolds, The MIT Press, April 21, 2026.

Measuring quasiparticle dynamics for particle impact reconstruction in a superconducting qubit chip
E. Celi, R. Linehan, P. M. Harrington, M. Li, H. D. Pickney, K. Serniak, W. D. Oliver, J. A. Formaggio, E. Figueroa-Feliciano, D. Baxter
arXiv:2604.13176 (2026)