Infleqtion Delivers the UK’s Only Operational 100 Qubit Quantum Computing System

Infleqtion has deployed the UK’s first operational 100-qubit quantum computer, a neutral-atom system, at the National Quantum Computing Centre in March 2026. This milestone marks the UK’s entry into the 100-qubit club, positioning it alongside competitors like QuEra and Pasqal in neutral-atom quantum computing. At 100 qubits, the system reaches a scale where it can tackle practical problems in quantum chemistry and materials science, though error correction remains a challenge. The delivery underscores the UK’s push to advance quantum infrastructure, aiming to accelerate research in drug discovery, catalysis, and advanced materials. Experts note that while 100 qubits enable meaningful simulations, scalability and coherence times will determine real-world utility compared to rival platforms.