
Quantum Time and Frequency Measurement
It plays an indispensable and important role in national economic and defense development. It is applied in scenarios such as timekeeping and time dissemination, military defense, Beidou navigation, financial settlement, power grid synchronization, and communication systems. The limitations of traditional microwave atomic clocks: it is difficult to achieve both high accuracy and stability in frequency.
Project Overview — Major Technical Breakthroughs
- Proposed and realized a laser-cooled cadmium ion microwave clock, which is both accurate and stable.
- Four innovations, breakthroughs in four key technologies.
- Technical Level: World-class, internationally leading!

