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

Atomic clocks have long been the gold standard for measuring time and frequency. Among them, optical clocks—using atoms like ...

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

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

Feb. 16, 2022 — Physicists have made one of the highest performance atomic clocks ever. ­­ Their instrument, known as an optical lattice atomic clock, can measure differences in time to a ...

An optical lattice clock embedded in the curved spacetime formed by the earth’s gravity. Dynamical interplay between photon-mediated interactions and gravitational redshift can lead to ...

With an optical atomic clock, you may achieve a precision of just a few centimeters [where 1 centimeter is 0.4 inches]," study co-author Minghao Qi, professor of electrical and computer ...

according to its Kyoto-based manufacturer Shimadzu Corp. Known as a "strontium optical lattice clock," it is 100 times more accurate than cesium atomic clocks, the current standard for defining ...

on quantum entanglement and interactions in an optical atomic clock. Their work revealed that the interplay between gravitational effects and quantum interactions can lead to unexpected phenomena ...