The very definition of a second — in modern times, at least — is 9,192,631,770 periods of the radiation corresponding to the transition ... definition using optical clocks that are 100 times ...

Researchers have developed a new approach in optical atomic clocks that brings forth a major ... could soon be based on something beyond the transition of two hyperfine ground states of cesium ...

The very definition of a second — in modern times, at least — is 9,192,631,770 periods of the radiation corresponding to the transition ... definition using optical clocks that are 100 times ...

This is about 100,000 times faster than the microwave frequencies of the cesium clocks which are generating the second at present. These optical clocks are still being assessed, but already now ...

Accurate frequency measurements of a narrow optical clock transition in 171 Yb atoms trapped in an optical lattice establish this system as a serious contender in the quest to develop increasingly ...

Solid-state clock Illustration of how thorium atoms are vaporized (bottom) and then deposited in a thin film on the substrate’s surface (middle). This film could form the basis for a nuclear clock ...

When the German computer pioneer Konrad Zuse built the world’s first programmable computer in war time Berlin, it performed floating point arithmetic at a clock speed of between 5 and 10 Hz. The ...

"This advanced ESTU module enhances our industry-first high-performance optical cesium atomic clocks, delivering substantial benefits, including reduced Allan Deviation. These improvements are ...