LONDON — Researchers at the US Government's National Institute of Standards and Technology (NIST) are claiming a tiny atomic clock they have demonstrated could form the basis of significantly more ...

The heart of a minuscule atomic clock—believed to be 100 times smaller than any other atomic clock—has been demonstrated by scientists at the Commerce Department’s National Institute of Standards and ...

Ordinarily, the chamber of atoms at the heart of an optical clock might be a meter across. The new mini optical clock uses an atom chamber a mere 3 millimeters across mounted on a silicon chip. “I was ...