"Atomic clocks and other marvels of absolute frequency measurements"

Who: Amand Lucas, University of Namur, Belgium.

Place: Donostia International Physics Center. Pº Manuel Lardizabal 4, Donostia - San Sebastián

Date: Friday, 9 October 2015, 12:00

In the last 100 years or so, no less than ten Nobel laureates in physics have produced works that have impacted on the improvement of the accuracy of clocks. In this seminar of generaI interest I will first review the physical principles at the basis of microwave atomic clocks (Cs, H, Rb clocks) such as used in the GPS, Galileo and communications. In the second part, I will explain the practical realization with pulsed lasers of Einstein's "gedanken" experiment of a light clock, with the consequence that an optical atomic clock may soon replace the Cesium clock as a new primary frequency standard of yet improved precision.


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