most citedFrequency comparisons and absolute frequency measurements of 171Yb+ single-ion optical frequency standards

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physics.atom-ph2005★ 11 cited

Frequency comparisons and absolute frequency measurements of 171Yb+ single-ion optical frequency standards

E. Peik, B. Lipphardt, H. Schnatz +3

We describe experiments with an optical frequency standard based on a laser cooled Yb ion confined in a radiofrequency Paul trap. The electric-quadrupole transition fro…

physics.atom-ph2004

Atomic Clocks and Constraints on Variations of Fundamental Constants

Savely G. Karshenboim, Victor Flambaum, Ekkehard Peik

We consider an application of precision frequency measurements to searches for possible time variations of the fundamental physical constants. Current laboratory constraints on var…