Browsing by Subject "frequency comparison"

Browsing by Subject "frequency comparison"

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  • Atomic clock comparisons with a 3e-16 uncertainty via geostationary satellites 
    Riedel, Franziska (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2021)
    Optical clocks are superior to all other clocks, reaching 1e-18 in their uncertainty. This makes them not only attractive for the field of fundamental research, like testing General Relativity or examining the variance of ...
  • First optical lattice frequency standard based on 24Mg atoms 
    Fim, Dominika Barbara (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2021)
    The primary frequency and time standard, defined via a transition frequency of caesium-133, is realized by microwave clocks reaching relative uncertainties in the 10−^16 level. This performance has been surpassed by ...
  • Hochauflösende Spektroskopie und Stabilitätsanalyse eines Magnesium-Frequenzstandards 
    Zipfel, Klaus Hendrik (Hannover : Institutionelles Repositorium der Leibniz Universität Hannover, 2019)
    Mit ihren relativen Instabilitäten und Ungenauigkeiten von nur noch wenigen 10^-18 übertreffen optische Frequenzstandards bereits heutzutage die derzeit besten Mikrowellen-Atomuhren um mehrere Größenordnungen. Neben der ...