The quantum clock’s primary function is to provide a highly secure and stable time source. This latest clock could greatly improve how the military gathers information and conducts surveillance.

There was a time when atomic clocks looked like pretty hot stuff ... It can also be used to secure communications by using highly synchronized timekeeping for high-level encryption.

The trial is the first time that DSTL has tested a UK-built optical atomic clock outside of a laboratory ... about exploring quantum technologies for secure and resilient operational advantage ...