Silicon Quantum Computing: Quantum Motion’s CMOS Breakthrough at NQCC

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Silicon Quantum Computing: Quantum Motion’s CMOS Breakthrough at NQCC
Key Takeaways:

First Silicon Quantum Computer: Quantum Motion delivers the industry’s first full-stack silicon CMOS quantum computer to the UK’s NQCC.

Scalable Architecture: Uses standard 300mm CMOS wafer technology, enabling millions of qubits for fault-tolerant computing.

Data-Center Friendly: Compact design fits in three 19-inch server racks, compatible with standard data-center environments.

Silicon quantum computing has reached a key moment with Quantum Motion’s delivery of the industry’s first full-stack quantum computer using standard silicon Complementary Metal-Oxide-Semiconductor (CMOS) technology. Installed at the United Kingdom’s National Quantum Computing Centre (NQCC) on September 15, 2025, this system marks the first silicon spin-qubit computer integrated into the NQCC’s Quantum Computing Testbed Programme. By leveraging the same transistor technology found in conventional computers, Quantum Motion demonstrates a scalable, mass-producible approach to quantum computing that could transform industries like healthcare and energy.

The system integrates Quantum Motion’s Quantum Processing Unit (QPU) with a user-friendly interface and control stack compatible with industry-standard software frameworks like Qiskit and Cirq. For example, this compatibility allows developers to seamlessly adapt existing quantum algorithms to the platform. Occupying just three 19-inch server racks, the system includes a dilution refrigerator and control electronics, with auxiliary equipment designed to sit separately. This compact, data-center-friendly footprint supports upgrades to larger QPUs without altering the system’s physical layout, ensuring long-term scalability.

“This is quantum computing’s silicon moment,”

— James Palles-Dimmock, CEO, Quantum Motion

A Scalable Quantum Future

Unlike other quantum computing approaches, Quantum Motion employs high-volume industrial chipmaking to produce qubits using 300mm CMOS wafer technology from commercial foundries. This method, rooted in the same processes used for mobile phones and AI GPUs, enables the creation of dense, scalable qubit arrays. Consequently, the architecture supports expansion to millions of qubits per QPU, paving the way for fault-tolerant, utility-scale quantum computing. Additionally, the system incorporates AI-driven machine-learning tuning for automated control and calibration, enhancing operational efficiency.

Quantum Motion’s QPU utilizes a tile-based architecture, integrating compute, readout, and control elements into a repeatable pattern on the chip. This design not only facilitates scalability but also allows for straightforward upgrades by swapping in next-generation QPUs. For instance, organizations can adopt more advanced quantum processors without overhauling their infrastructure. The company’s focus on cryoelectronics—integrating qubits with control circuits that operate at cryogenic temperatures—further supports extreme scaling, addressing one of the biggest challenges in quantum computing today.

“The NQCC is accelerating UK quantum capabilities by evaluating a number of diverse hardware platforms by leading companies worldwide. The successful installation of Quantum Motion’s system marks an important step forward in the NQCC’s quantum computing testbeds initiative.”

— Dr Michael Cuthbert, Director of NQCC

Real-World Impact and Collaboration

The deployment at the NQCC, a key part of the UK’s National Quantum Technologies Programme (NQTP), positions Quantum Motion as a leader in silicon quantum computing. The NQCC collaborates with businesses, government, and researchers to scale quantum technologies, and this system will undergo rigorous testing to map real-world applications onto its architecture. For example, potential applications include faster drug discovery in healthcare and optimized energy grids for clean energy, as highlighted by UK Science Minister Lord Vallance. Quantum Motion’s interdisciplinary team of over 100 specialists across the UK, US, Australia, and Spain drives this innovation, combining expertise in quantum theory, hardware, and software engineering.

“Our National Quantum Computing Centre offers a unique space for innovators to trial new quantum technologies. This new form of quantum computer from Quantum Motion will take this groundbreaking technology another step closer to commercial viability – which could help support healthcare with faster drug discovery or clean energy by optimising energy grids.”

— Lord Vallance, UK Science Minister

Quantum Motion’s efforts extend beyond the NQCC, with involvement in the SiQEC silicon quantum error correction project and DARPA’s Quantum Benchmarking Initiative (QBI). By focusing on fault-tolerant systems, the company aims to solve intractable problems in fields like chemistry, materials science, and artificial intelligence. With this delivery, Quantum Motion is poised to bring commercially viable quantum computers to market this decade, offering a scalable, user-centric solution that could redefine computing. To explore this technology further, stakeholders can engage with Quantum Motion’s platform at the NQCC or through their ongoing projects.

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