In a National Science Review perspective, the research progress and future challenges of nuclear optical clocks are presented ...

Atomic clocks have long been the gold standard for measuring time and frequency. Among them, optical clocks—using atoms like strontium or aluminum—have reached staggering levels of accuracy, with ...

A revolutionary timekeeping breakthrough could be on the horizon as scientists explore the thorium-229 nuclear optical clock, ...

Atomic clocks are the basis upon which a second is defined. But there is a new kid on the block, the optical clock, which ...

This technology, called the 'microcomb chip,' could make optical atomic clocks, the most precise timekeepers in the world, compact enough for everyday use. Credit: Kaiyi Wu This breakthrough could ...

Currently, atomic clocks, especially atomic optical clocks, set the standard for accuracy. However, the 229 Th nuclear optical clock could potentially outperform them all. 229 Th is unique among ...

Precision equipment manufacturer Shimadzu Corp. said it has created the world’s most accurate time device: a clock that won’t ...