International Timescales with Optical Clocks (ITOC)
- verfasst von
- H. S. Margolis, R. M. Godun, P. Gill, L. A.M. Johnson, S. L. Shemar, P. B. Whibberley, D. Calonico, F. Levi, L. Lorini, M. Pizzocaro, P. Delva, S. Bize, J. Achkar, H. Denker, L. Timmen, C. Voigt, S. Falke, D. Piester, C. Lisdat, U. Sterr, S. Vogt, S. Weyers, J. Gersl, T. Lindvall, M. Merimaa
- Abstract
A new collaborative European project 'International timescales with optical clocks' (ITOC) aims to tackle the key challenges that must be addressed prior to a redefinition of the SI second. A coordinated programme of comparisons will be carried out between European optical clocks developed in five different laboratories, enabling their performance levels to be validated at an unprecedented level of accuracy. Supporting work will be carried out to evaluate relativistic effects that influence the comparisons, including the gravitational redshift of the clock transition frequencies. A proof-of-principle experiment will also be performed to demonstrate that optical clocks could be used to make direct measurements of the Earth's gravity potential with high temporal resolution.
- Organisationseinheit(en)
-
Institut für Erdmessung
- Externe Organisation(en)
-
National Physical Laboratory
Istituto Nazionale di Ricerca Metrologica (INRiM)
Observatoire de Paris (OBSPARIS)
Physikalisch-Technische Bundesanstalt (PTB)
Czech Metrology Institute (CMI)
VTT Technical Research Centre of Finland Ltd.
- Typ
- Aufsatz in Konferenzband
- Seiten
- 908-911
- Anzahl der Seiten
- 4
- Publikationsdatum
- 2013
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Steuerungs- und Systemtechnik
- Elektronische Version(en)
-
https://doi.org/10.1109/EFTF-IFC.2013.6702183 (Zugang:
Unbekannt)