Quantum INS: GPS's Replacement? - FlightAware
It may sound like something out of science fiction, but navigation using the principles of Quantum Physics (Quantum Technology) is fast becoming a reality. Positioning, Navigation, and Timing (PNT) can increase accuracy by orders of magnitude, revolutionizing navigation across the board. Self-contained Quantum Inertial Navigation Systems (Q-INS) are also impervious to jamming or spoofing by hostile actors.
Source: flightaware.com