EurekAlert!

NIST's second 'quantum logic clock' based on aluminum ion is now world's most precise clock

BOULDER, Colo.—Physicists at the National Institute of Standards and Technology (NIST) have built an enhanced version of an experimental atomic clock based on a single aluminum atom that is now the ...
EurekAlert!

NIST 'quantum logic clock' rivals mercury ion as world's most accurate clock

BOULDER, Colo.- An atomic clock that uses an aluminum atom to apply the logic of computers to the peculiarities of the quantum world now rivals the world's most accurate clock, based on a single ...
来自MSN

New atomic fountain clock joins elite group that keeps the world on time

Clocks on Earth are ticking a bit more regularly thanks to NIST-F4, a new atomic clock at the National Institute of Standards and Technology (NIST) campus in Boulder, Colorado. This month, NIST ...