Physicists at Commerce’s 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 world’s most precise clock, more than twice as precise as the previous pacesetter based on a mercury atom. The new clock is the second version of NIST’s “quantum logic clock,” so called because it borrows the logical processing used for atoms storing data in experimental quantum computing, another major focus of the same NIST research group. (More)
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