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. ChardonnetM. Cifuentes Marín, C. Clivati, S. Condio, E. A. Curtis, A. Czubla, M. DoleÅ3/4al, S. Dörscher, P. Dunst, C. H. Feng, M. Filzinger, R. Folman, T. Fordell, V. Formichella, Y. Foucault, L. Galleani, I. Goti, D. Groswasser, M. Gruszczyński, C. Guo, K. J. 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, T. 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. NaroÅ1/4nik, 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, A. E. Wallin, T. Waterholter, M. Zarei, C. Zyskind

Research output: Contribution to journalConference articlepeer-review

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
Issue number1
DOIs
StatePublished - 1 Jan 2024
Event9th Symposium on Frequency Standards and Metrology, FSM 2023 - Kingscliff, Australia
Duration: 16 Oct 202320 Oct 2023

ASJC Scopus subject areas

  • General Physics and Astronomy

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