A centimeter of time: Cool clocks pave the way to new measurements of Earth
Tuesday, February 10, 2015 - 09:30
in Physics & Chemistry
Two cryogenically cooled optical lattice clocks that can be synchronized to a tremendous one part in 2.0 x 10-18--meaning that they would only go out of synch by a second in 16 billion years. This is nearly 1,000 times more precise than the current international timekeeping standard cesium atomic clock.