Thursday, May 16, 2013, 16:00
WHGA/Auditorium
T. Mehlstäubler, Quest, Physikalisch-Technische Bundesanstalt
Abstract:
Time and frequency are the most accurately measurable quantities today. In particular,
optical clocks, that nowadays can reach a relative frequency inaccuracy as low
as 10-17, will open up a new field of search for deviations in the
predictions of Einstein's general relativity, tests of modern unifying theories
and the development of new sensors for gravity and navigation.
In my talk, I will introduce the concepts of optical clocks, present the status of clock
development at PTB and discuss ongoing projects for continental and intercontinental
clock comparisons. Further on, I will discuss the status of fundamental tests of our
standard model by means of high-precision spectroscopy as well as future applications
of time and frequency metrology