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World’s most accurate atomic clock uses 2-mile laser beam to track time precisely
The laser beam traveled 3.6 kilometers (over 2 miles) via fiber optic links to NIST, where a frequency comb (acting as a “ruler for light”) allowed the aluminum ion clock’s laser to adopt its superior ...
World’s most accurate clock requires a 2-mile laser beam
However, aluminum is tricky. The element is difficult to measure with lasers, as well as cool to absolute zero. But when ...
Quantum networks of clocks open the door to probe how quantum theory and curved space-time intertwine
Quantum networking is being rapidly developed world-wide. It is a key quantum technology that will enable a global quantum ...
World's most precise clock achieves 19-decimal accuracy with aluminum ion technology
There's a new record holder for the most accurate clock in the world. Researchers at the National Institute of Standards and ...