David Wineland (2016) - Atomic Ion Clocks

David Wineland (2016)

Atomic Ion Clocks

David Wineland (2016)

Atomic Ion Clocks

Abstract

For centuries, clocks have been used for navigation, an important application that continues today. The natural oscillations in atoms can provide standard references for accurate clocks because all atoms of a given element and isotope are exactly identical and because measurement uncertainties currently approach 1 part in 1018. At this level, many interesting effects, including those due to special and general relativity, must be calibrated and corrected for. I will give examples from clocks based on atomic ions but these are only representative of a world-wide effort to make better clocks based on both ions and neutral atoms.

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