Robust Optical Clocks for International Timescales (ROCIT)

  • H S Margolis*
  • , R M Godun
  • , N Huntemann
  • , R Le Targat
  • , M Pizzocaro
  • , M Zawada
  • , M. Abgrall
  • , D Akamatsu
  • , H Álvarez Martínez
  • , A Amy-Klein
  • , M Andia
  • , E Benkler
  • , N M Bhatt
  • , S Bilicki
  • , S Bize
  • , M Bober
  • , D Calonico
  • , V Cambier
  • , E Cantin
  • , C Chardonnet
  • M Cifuentes Marín, C Clivati, S Condio, E. A. Curtis, A Czubla, M Doležal, S Dörscher, P Dunst, C-H Feng, M Filzinger, R Folman, Thomas Fordell, V Formichella, Y Foucault, L Galleani, I Goti, D Groswasser, M Gruszczyński, C Guo, Kalle Hanhijärvi, H N Hausser, I R Hill, K Hosaka, M Y H Johnson, J Keller, J Klose, T Kobayashi, S Koke, D Kovačić, P Křen, A Kuhl, A Ledziński, D Lemański, F Levi, Thomas Lindvall, C Lisdat, H Liu, J Lodewyck, O Lopez, L Lorini, M Lours, P Mašika, M Mazouth-Laurol, T E Mehlstaubler, W Moreno, P Morzyński, M Narożnik, J Nawrocki, A Nishiyama, P Nogaś, T Nordmann, A O Parsons, B Pointard, P E Pottie, M Risaro, B I Robertson, J Romero González, M Schioppo, I Sesia, H Shang, G Signorile, K Stahl, M Steinel, U Sterr, J Suárez Ramírez, A Tofful, M Tønnes, A Tran, J Tunesi, Anders Wallin, T Waterholter, M Zarei, C Zyskind
*Corresponding author for this work

Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

2 Citations (Scopus)

Abstract

The recently concluded collaborative European project "Robust optical clocks for international timescales" (ROCIT) tackled some of the key challenges on the roadmap towards a redefinition of the SI second. This paper gives an overview of progress made on improving the robustness and automation of optical clocks and verifying their uncertainty budgets through coordinated international comparison campaigns. It also presents work on the incorporation of optical clocks into time scales, covering both their use to steer local physical time scales and their use for evaluations of hydrogen masers contributing data for the computation of International Atomic Time (TAI). The overall objective of the project was to bring European optical clocks to the stage where they could be operated routinely as secondary frequency standards, regularly contributing to TAI.
Original languageEnglish
Article number012022
JournalJournal of Physics: Conference Series
Volume2889
DOIs
Publication statusPublished - Nov 2024
MoE publication typeA4 Article in a conference publication
Event9th Symposium on Frequency Standards and Metrology - Kingscliff, Australia
Duration: 16 Oct 202320 Oct 2023

Funding

The ROCIT project (18SIB05) received funding from the European Metrology Programme for Innovation and Research (EMPIR), which is co-financed by the Participating States and from the European Union’s Horizon 2020 research and innovation programme.

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