Quantum Sensing and Defence: The Market Before Fault-Tolerant Computing
Why sensing, timing and resilient navigation may become the first operational quantum market
Quantum technologies are often discussed as if their commercial and strategic future depended almost entirely on the arrival of universal fault-tolerant quantum computers. That framing is too narrow. Quantum sensing, metrology, timing, GNSS-independent navigation, imaging, gravimetry, magnetometry and RF/optronic sensing address operational problems that already exist across defence, critical infrastructure, space, transport, telecoms and energy. The central issue is not whether every quantum sensor is ready for deployment, but whether selected sensing and timing systems can reach mission-grade performance earlier than general-purpose quantum computing, especially where governments and infrastructure operators need resilience against GNSS jamming, spoofing, degraded navigation environments and disruption of critical timing systems.