Superconducting Quantum Materials and Systems Center

Superconducting Quantum Materials and Systems Center
Name	Superconducting Quantum Materials and Systems Center
Established	2020
Type	U.S. Department of Energy National Quantum Information Science Research Center
Director	Anna Grassellino
Location	Fermi National Accelerator Laboratory, Batavia, Illinois
Focus	Quantum computing, quantum sensing, superconducting materials
Website	https://sqms.fnal.gov

Superconducting Quantum Materials and Systems Center is a premier U.S. Department of Energy research hub dedicated to advancing the foundational science and engineering of quantum computing and quantum sensing. Headquartered at Fermi National Accelerator Laboratory, the center brings together a multidisciplinary team from national laboratories, academia, and industry to overcome key barriers in coherence time, qubit connectivity, and materials science. Its core mission is to develop transformative superconducting technologies that will enable the next generation of quantum information science applications, from fundamental particle physics to practical algorithms.

Overview and Mission

Established in 2020 as part of the National Quantum Initiative Act, the center operates under the Office of Science with a primary goal of constructing and demonstrating a beyond-state-of-the-art quantum computer based on superconducting qubits. The mission integrates cutting-edge research in superconducting radio frequency cavities, novel quantum materials, and advanced cryogenics to push the limits of quantum coherence and system scalability. Leadership from Anna Grassellino at Fermi National Accelerator Laboratory coordinates efforts across a consortium that includes SLAC National Accelerator Laboratory, National Institute of Standards and Technology, and Northwestern University. This collaborative framework is designed to translate fundamental discoveries into robust, engineered systems capable of solving complex problems in high-energy physics and materials discovery.

Research Programs

The center's research is organized into several synergistic thrusts. The quantum computing program focuses on developing high-coherence, three-dimensional transmon qubits and improving entanglement protocols across multi-qubit processors. A parallel quantum sensing initiative leverages superconducting quantum interference devices and microwave kinetic inductance detectors for ultra-sensitive measurements in fields like dark matter detection. The materials science program investigates novel superconductors such as niobium and nitrogen-doped niobium, aiming to understand and mitigate quantum decoherence sources like two-level systems and vortices. Additional programs explore quantum algorithms for quantum simulation of condensed matter physics and the integration of quantum processors with classical computing infrastructure.

Key Technologies and Facilities

Central to the center's work is the unique infrastructure at Fermi National Accelerator Laboratory, including state-of-the-art cleanroom facilities for qubit fabrication and the Vertical Test Area for characterizing superconducting radio frequency cavities. The center is pioneering the use of high-quality-factor three-dimensional cavities to extend qubit lifetime and enable long-range coupling. Advanced dilution refrigerator systems, capable of reaching temperatures below 10 millikelvin, provide the necessary cryogenic environment for operating large-scale quantum systems. Other critical technologies under development include Josephson junction arrays for quantum memory, photon-mediated coupling schemes, and novel thin-film deposition techniques for superconducting materials.

Collaborations and Partnerships

The center operates as a core hub within a vast network of national and international partners. Key institutional collaborators include Ames National Laboratory, Argonne National Laboratory, and Los Alamos National Laboratory, alongside leading universities like University of Chicago, University of Illinois Urbana-Champaign, and Massachusetts Institute of Technology. Strategic industry partnerships with companies such as IBM, Google Quantum AI, and Rigetti Computing facilitate technology transfer and benchmarking. The center also engages with international initiatives like the CERN quantum technology program and maintains close ties with the Intelligence Advanced Research Projects Activity and the National Science Foundation to align with broader national quantum information science goals.

Scientific Impact and Achievements

Notable achievements include record-breaking demonstrations of coherence time in three-dimensional superconducting cavities, surpassing the millisecond barrier, which is a critical milestone for viable quantum error correction. Researchers have made significant advances in understanding material-induced losses in niobium through studies of surface treatments and nitrogen doping. The center has also developed new quantum sensing protocols that enhance the sensitivity of searches for axion dark matter and other beyond-Standard Model physics. These contributions are regularly published in high-impact journals such as Nature Physics, Physical Review Letters, and npj Quantum Information, solidifying the center's role at the forefront of the field.

Future Directions

Future efforts are directed toward the ambitious goal of building and operating a fully functional 1,000-qubit quantum computer to tackle grand-challenge problems in quantum chemistry and lattice gauge theory. A major focus will be on achieving fault-tolerant quantum computation through the integration of improved quantum error correction codes with next-generation hardware. The center plans to expand its quantum foundry capabilities to fabricate and test new quantum materials at scale, including exploration of topological superconductors. Long-term roadmaps also include deploying advanced quantum sensor networks for fundamental physics experiments and deepening cross-disciplinary collaborations to accelerate the transition from laboratory prototypes to impactful technological systems.

Category:Quantum computing research centers Category:United States Department of Energy national laboratories Category:Research institutes in Illinois Category:Quantum information science Category:2020 establishments in Illinois