University of Birmingham > Talks@bham > Cold atoms > Optical atomic clocks for more than just telling the time

Optical atomic clocks for more than just telling the time

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If you have a question about this talk, please contact Dr Giovanni Barontini.

For thousands of years, man used the rotation of the Earth as a reference for timekeeping. But the modern world requires far greater precision and the advent of atomic clocks has enabled fractional uncertainties in the realisation of the second to improve by many orders of magnitude. With ever improved accuracy in measurements of time and frequency, it also becomes possible to test fundamental physics at previously inscrutable levels. This talk shows how optical clocks at the National Physical Laboratory can be put to use as sensors of gravity potential or even to measure limits on possible time-variation of fundamental constants.

This talk is part of the Cold atoms series.

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