Atomic clock accuracy boosted

PORTLAND, Ore. — A strontium-based timekeeper providing up to 50 percent better accuracy could serve as the next-generation atomic clock.
By controlling collisions between neutral strontium atoms, the new atomic clock is said to be accurate to within one second in 300 million years, according to its inventor, Jun Ye of a joint institute formed by the U.S. National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder.

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