Wuhan University's 'Nail-Sized' Chip-Scale Atomic Clock: Packing Atomic Precision into a Tiny Form Factor Developed by the Satellite Navigation and Positioning Technology Research Center of Wuhan University, this chip-scale atomic clock is currently the world's smallest practical atomic clock, hailed as a 'micro-revolution in time precision' ✨. ???? Core Highlights - Extreme Miniaturization: With a volume of only 2.3 cm³, roughly the size of a fingernail, it is dozens of times smaller than traditional atomic clocks and can be easily embedded into portable devices and satellite terminals.- Ultra-High Precision: Boasting a timing accuracy of 10⁻¹¹ to 10⁻¹², it means no more than 1 second of error over 30,000 years, far exceeding ordinary quartz clocks and most miniature atomic clocks.- Leading Performance: It achieves globally top-tier performance in terms of power consumption, size, and stability, breaking the foreign monopoly in the field of miniaturized atomic clocks. ???? Application Value - Satellite Navigation: Provides timing capabilities for Beidou/GNSS terminals, maintaining a high-precision time reference even when signals are interrupted, thus enhancing positioning continuity and anti-interference performance.- Portable Communications: Empowers 5G/6G terminals and emergency communication equipment, enabling low-power, highly reliable time synchronization.- Quantum Sensing: Can be used in miniature atomic magnetometers and inertial measurement units, driving advancements in...
