In the quest for ultra-precise timekeeping, scientists have turned to nuclear clocks. Unlike optical atomic clocks—which rely ...

It discusses the stability and accuracy of atomic frequency standards, including different types of oscillators and atomic clocks, covering recent developments and uses of these devices. The precision ...

The Department of Defense has awarded quantum technology firm Infleqtion an $11 million contract to help it speed up the ...

Scientists are developing nuclear clocks using thin films of thorium tetrafluoride, which could revolutionize precision ...

That was back in 2001, when he and his colleague Christian Tamm proposed a device with the potential to be even more precise and portable than the world’s best atomic clocks. Peik’s estimate ...

In 2001, Japanese physicist Hidetoshi Katori proposed a new type of atomic clock that only loses a second every 30 billion years, a period longer than the current age of the universe. The ...

Telling time in space is difficult, but it is absolutely critical for applications ranging from testing relativity to ...

Atomic clocks that excite the nucleus of thorium-229 embedded in a transparent crystal when hit by a laser beam could yield the most accurate measurements ever of time and gravity, and ...

With access to a 10-MHz timebase from a cesium fountain atomic clock — no less a clock than the one that’s used to define the SI second, by the way — [Daniel] looked for ways to sync the ...

The Doomsday Clock, a symbolic timepiece that warns of a catastrophic global event, is ticking closer to midnight than ever ...