The next generation of atomic clocks “ticks” at the frequency of a laser. That is around 100,000 times faster than the microwave frequencies of the caesium clocks that currently generate the second.

Water clocks, which appeared around 2,000BC ... "The second… is defined by taking the… transition frequency of the caesium-133 atom, to be 9192631770 when expressed in the unit Hz, which ...

There was a time when atomic clocks looked like pretty hot stuff. By measuring time based on the frequency of cesium-133 atoms, it was possible to build a clock that would only gain or lose a ...

Deployment ensures consistent, high-precision time synchronization, advancing research, education and contribution to UTC "The deployment of Adtran’s Oscilloquartz super high-performance atomic ...

In 2001, Japanese physicist Hidetoshi Katori proposed a new type of atomic clock that only loses a second every 30 billion years, a period longer than the current age of the universe. The ...

The next generation of atomic clocks "ticks" with the frequency of a laser. This is about 100,000 times faster than the microwave frequencies of the cesium clocks which are generating the second ...