Infleqtion Enables Researchers to Work with Large-Scale Quantum Systems
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Infleqtion has achieved an advance in quantum computing, successfully deploying a 100-physical-qubit neutral-atom quantum system at the National Quantum Computing Centre (NQCC) in December 2025, establishing foundational infrastructure for large-scale research. This milestone moves the United Kingdom beyond research and toward practical applications of quantum technology, enabling experimentation with algorithms, error-correction, and solutions for real-world challenges in fields like materials science and energy. “Infleqtion’s progress is a significant milestone, helping move the UK beyond research toward real-world uses,” said Lord Vallance, Minister of State for Science, Research and Innovation. The Sqale platform represents the first neutral-atom system of this scale to operate within a national facility, solidifying the UK’s position as a leader in this technology. Infleqtion Achieves 100-Physical-Qubit Neutral-Atom System Infleqtion recently achieved a 100-physical-qubit neutral-atom system, realized in December 2025, establishing a critical foundation for accelerating quantum computing research and practical applications. This is not merely an incremental step, but a move toward systems capable of tackling problems beyond the reach of current prototypes. Dr. Michael Cuthbert, Director of the NQCC, said that having a system of this scale available through the NQCC is a significant step for the UK quantum community, emphasizing the importance of moving beyond small-scale demonstrations. This milestone is noteworthy because it addresses a fundamental limitation in quantum computing: the need for a substantial number of physical qubits to create even a single reliable logical qubit, ranging from ten to over a thousand. Infleqtion’s demonstrated 99.73% two-qubit gate fidelity is therefore crucial, as higher fidelity directly translates to fewer physical qubits needed per logical qubit, improving scalability and efficiency. The company’s success builds on a track record of translating neutral-atom technology from research settings into operational systems, including quantum flight trials and the deployment of a quantum optical atomic clock on an underwater autonomous vehicle, demonstrating an ability to deliver fielded products. Colin Sullivan, Managing Director of Infleqtion UK, described the achievement as “a defining moment for Infleqtion and the UK’s ambition to build sovereign quantum capabilities,” highlighting the national importance of the project.
Sqale Platform Enables NQCC Quantum Computing Testbed While quantum computers have existed as laboratory prototypes for years, the NQCC’s installation represents a shift toward systems capable of tackling increasingly complex problems, extending beyond theoretical demonstrations into areas like materials science, energy optimization, and complex systems analysis. Reaching the 100-physical-qubit level is a necessary condition for probing applications that connect more directly to real-world challenges, allowing scientists to move beyond small-scale experiments and begin addressing the practical hurdles of operating and scaling these delicate machines. Infleqtion, the company behind Sqale, highlights the advantages of its neutral-atom architecture, noting its scalability, reconfigurability, and strong coherence properties as key factors in achieving this milestone. This deployment is part of a broader initiative to bolster the UK’s quantum ecosystem, accelerating skills development and supply-chain readiness. Infleqtion’s success isn’t limited to this single installation; the company has already demonstrated neutral-atom technology in operational environments, including quantum flight trials and underwater autonomous vehicle deployments, showcasing a capacity to translate research into tangible products. The company aims to exceed 30 logical qubits in 2026 and deliver over 100 by 2028, driven by a 99.73% two-qubit gate fidelity that offers a significant advantage in scalability and efficiency, as fewer physical qubits are needed to encode a single reliable logical qubit. This is a defining moment for Infleqtion and the UK’s ambition to build world-class sovereign quantum capabilities. Colin Sullivan, Managing Director of Infleqtion UK 73% Two-Qubit Gate Fidelity Drives Scalability Infleqtion’s advancements in quantum computing are not solely about increasing qubit count; an achievement centered on fidelity in December 2025 is proving equally crucial for building practical machines. The company demonstrated 99.73% two-qubit gate fidelity, a figure that signifies industry-leading performance on a key metric for scaling quantum systems, and directly addresses the challenge of translating physical qubits into reliable logical qubits. Because encoding a single logical qubit, the unit used for actual computation, requires between ten and over one thousand physical qubits, minimizing errors at the physical level is paramount. This high fidelity translates to a significant efficiency advantage; fewer physical qubits are needed to create each logical qubit, accelerating the path toward fault-tolerant architectures. The deployment of this technology within the National Quantum Computing Centre’s (NQCC) testbed is particularly noteworthy, as it provides a platform for researchers to evaluate performance and benchmark applications. It allows researchers to move beyond small demonstrations and begin learning what it really takes to operate and scale quantum computers in practice.
Dr Michael Cuthbert, Director of the NQCC Neutral-Atom Architecture Supports Real-World Applications This achievement, realized in December 2025, establishes foundational infrastructure for tackling complex problems in fields like materials science, energy systems, and optimization. This practical experience differentiates Infleqtion from many competitors still confined to research settings. Matthew Kinsella, CEO of Infleqtion, said that “The NQCC’s quantum computing testbed is among the first of its kind, advancing innovation at a global level,” emphasizing the platform’s role in fostering global leadership. Infleqtion’s 99.73% two-qubit gate fidelity delivers industry-leading performance on the metric that matters most in quantum computing, meaning fewer physical qubits per logical qubit, delivering a significant scalability and efficiency advantage. The NQCC’s quantum computing testbed is among the first of its kind, advancing innovation at a global level. Matthew Kinsella, CEO of Infleqtion Source: https://infleqtion.com/infleqtion-delivers-the-uks-only-operational-100-qubit-quantum-computing-system-at-the-national-quantum-computing-centre/ Tags: