Transportable optical clocks for key comparisons
Transportable optical clocks for key comparisons
Significant progress with optical clocks has been achieved and they clearly outperform current primary standards of time and frequency. The established key comparison for time and frequency uses satellite-based techniques to provide international consistency with 10^(-16) fractional uncertainty. Optical fibre links between a few national metrology laboratories in Europe enable clock comparisons with low 10^(-18) uncertainty limited by relativistic effects. To overcome these limitations and to compare optical clocks that cannot be interconnected via optical fibre links, within this project travelling frequency standards with performance exceeding the current state-of-the-art will be developed, evaluated, and employed.
Niessner Anton - Physikalisch-Technischer Pruefdienst des Bundesamt fuer Eich- und Vermessungswesen
Doležal Miroslav - Český metrologický institut
Hald Jan - Dansk Fundamental Metrologi A/S
Gruszczynski Maciej - Central Office of Measures
Pizzocaro Marco - Istituto Nazionale di Ricerca Metrologica (INRIM)
Alvarez Hector Martinez - Real Instituto y Observatorio de la Armada
Letargat Rodolphe - Observatoire de Paris (OBSPARIS)
Dierikx Erik - VSL B.V. (VSL)
Lindvall Thomas - Teknologian tutkimuskeskus VTT Oy
Singh Yeshpal - The University of Birmingham
Číp Ondřej - Ústav přístrojové techniky Akademie věd České republiky, v.v.i.
Mehlstäubler Tanja - Gottfried Wilhelm Leibniz Universität Hannover
Margolis Helen - NPL Management Limited
Zawada Michał - Uniwersytet Mikolaja Kopernika w Toruniu
Schreck Florian - UNIVERSITEIT VAN AMSTERDAM