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

JILA researchers are pioneering a nuclear clock using thorium-229, which offers unprecedented stability compared to atomic ...

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

ESA's Atomic Clock Ensemble in Space (ACES) has arrived at NASA's Kennedy Space Center in Florida, United States. This ...

For decades, atomic clocks have been the pinnacle of precision timekeeping, enabling GPS navigation, cutting-edge physics research, and tests of fundamental theories. But researchers are now pushing ...

For the first time, theoretical physicists from the Institute of Theoretical Physics (IPhT) in Paris-Saclay have completely ...

"Since these clocks simultaneously interrogate many atoms, they provide a unique platform to explore the intersection of GR and many-body quantum physics. In this work, we investigated a system ...

A group of physicists appointed by the CERN Council is now conducting a ‘strategy update’, soliciting input from the physics ...

Maybe that’s even more than half of the fun. [CuriousMarc] got an HP 5061A Cesium clock, a somewhat famous instrument as the model that attempted to prove the theory of relativity. The reason?

My main area of research relates to the development of laser and parametric optical frequency combs and their application to optical atomic clocks, tests of fundamental physics, trace gas sensing, ...