Projektnummer

N000882

Zusammenfassung

Optical atomic clocks are the most accurate devices currently available for timekeeping, with many applications ranging from fundamental physics to navigation. Comparisons of different types of optical clocks support the search for the elusive dark matter, which is five times more abundant than normal matter. Einstein's theory of relativity tells us that clocks near a gravitating body tick slower compared to clocks at zero gravity. This so-called red shift effect can be employed on Earth to measure height differences across very long distances, an important application in Earth monitor...