Nobel laureate Arthur Schawlow’s advice to “never measure anything but frequency” is a central principle of modern precision metrology and timekeeping. Today’s spectroscopy is advanced enough to teach ...

For decades, atomic clocks have provided the most stable means of timekeeping. They measure time by oscillating in step with ...

Nuclear clocks are a technology researchers have been working toward for decades. New research in theoretical physics brings them closer to reality.

The most accurate clock in space launches within days and will begin building a highly synchronised network out of the best clocks on Earth. But the project, decades in preparation, will only operate ...

An Arizona-based company has launched its next generation of low-noise Chip-Scale Atomic Clock (CSAC). Microchip's model SA65-LN is designed to operate in a wider temperature range, enabling low-phase ...

Vladan Vuletić with members of his Experimental Atomic Physics group. From left to right: Matthew Radzihovsky, Leon Zaporski, Qi Liu, Vladan Vuletić, and Gustavo Velez. Every time you check the time ...