A European collaboration involving clock experts from the National Physical Laboratory (NPL), the Physikalisch-Technische Bundesanstalt (PTB) and the Istituto Nazionale di Ricerca Metrologica (INRIM) ...

This release is available in German. You imagine a clock to be different – yet the optical table with its many complicated set-ups really is one. Optical clocks like the strontium clock in the ...

Optical lattice clocks are emerging timekeeping devices based on tens of thousands of ultracold atoms trapped in an optical lattice (i.e., a grid of laser light). By oscillating between two distinct ...

The world’s most accurate clocks are hitting the streets. Researchers led by Dr. Yogeshwar Kale, in collaboration with the UK Defense Science and Technology Laboratory, found new techniques to make ...

Ultra precise Chinese lattice clock joins international system, challenging decades of US dominance in global timekeeping ...

PORTLAND, Ore. — A candidate to be the next-generation atomic clock is based on the heavy metal strontium and uses a laser lattice to suspend super-cooled atoms. The result was a 430-THz time ...

Using radio telescopes observing distant stars, scientists have connected optical atomic clocks on different continents. Using radio telescopes observing distant stars, scientists have connected ...

NIST/JILA Fellow Jun Ye works on JILA's strontium clock. Ye has been instrumental in making the clock 50 percent more accurate than it was a year ago. Physicists have measured and controlled seemingly ...

Atomic clocks. They almost sound like something out of science fiction, or an experiment confined to some elite physics lab, but in reality, they’ve been around since the 1950s in one form or another.