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| Format: | Preprint |
| Published: |
2025
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| Subjects: | |
| Online Access: | https://arxiv.org/abs/2505.06763 |
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| _version_ | 1866913921842020352 |
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| author | Lindvall, Thomas Pizzocaro, Marco Godun, Rachel M. Abgrall, Michel Akamatsu, Daisuke Amy-Klein, Anne Benkler, Erik Bhatt, Nishant M. Calonico, Davide Cantin, Etienne Cantoni, Elena Cerretto, Giancarlo Chardonnet, Christian Marin, Miguel Angel Cifuentes Clivati, Cecilia Condio, Stefano Curtis, E. Anne Denker, Heiner Donadello, Simone Dörscher, Sören Feng, Chen-Hao Filzinger, Melina Fordell, Thomas Goti, Irene Hanhijärvi, Kalle Hausser, H. Nimrod Hill, Ian R. Hosaka, Kazumoto Huntemann, Nils Johnson, Matthew Y. H. Keller, Jonas Klose, Joshua Kobayashi, Takumi Koke, Sebastian Kuhl, Alexander Targat, Rodolphe Le Legero, Thomas Levi, Filippo Lipphardt, Burghard Lisdat, Christian Liu, Hongli Lodewyck, Jérôme Lopez, Olivier Mazouth-Laurol, Maxime Mehlstäubler, Tanja E. Mura, Alberto Nishiyama, Akiko Nordmann, Tabea Parsons, Adam O. Petit, Gérard Pointard, Benjamin Pottie, Paul-Eric Risaro, Matias Robertson, Billy I. Schioppo, Marco Shang, Haosen Stahl, Kilian Steinel, Martin Sterr, Uwe Tofful, Alexandra Tønnes, Mads Tran, Dang-Bao-An Tunesi, Jacob Wallin, Anders E. Margolis, Helen S. |
| author_facet | Lindvall, Thomas Pizzocaro, Marco Godun, Rachel M. Abgrall, Michel Akamatsu, Daisuke Amy-Klein, Anne Benkler, Erik Bhatt, Nishant M. Calonico, Davide Cantin, Etienne Cantoni, Elena Cerretto, Giancarlo Chardonnet, Christian Marin, Miguel Angel Cifuentes Clivati, Cecilia Condio, Stefano Curtis, E. Anne Denker, Heiner Donadello, Simone Dörscher, Sören Feng, Chen-Hao Filzinger, Melina Fordell, Thomas Goti, Irene Hanhijärvi, Kalle Hausser, H. Nimrod Hill, Ian R. Hosaka, Kazumoto Huntemann, Nils Johnson, Matthew Y. H. Keller, Jonas Klose, Joshua Kobayashi, Takumi Koke, Sebastian Kuhl, Alexander Targat, Rodolphe Le Legero, Thomas Levi, Filippo Lipphardt, Burghard Lisdat, Christian Liu, Hongli Lodewyck, Jérôme Lopez, Olivier Mazouth-Laurol, Maxime Mehlstäubler, Tanja E. Mura, Alberto Nishiyama, Akiko Nordmann, Tabea Parsons, Adam O. Petit, Gérard Pointard, Benjamin Pottie, Paul-Eric Risaro, Matias Robertson, Billy I. Schioppo, Marco Shang, Haosen Stahl, Kilian Steinel, Martin Sterr, Uwe Tofful, Alexandra Tønnes, Mads Tran, Dang-Bao-An Tunesi, Jacob Wallin, Anders E. Margolis, Helen S. |
| contents | Optical clocks provide ultra-precise frequency references that are vital for international metrology as well as for tests of fundamental physics. To investigate the level of agreement between different clocks, we simultaneously measured the frequency ratios between ten optical clocks in six different countries, using fiber and satellite links. This is the largest coordinated comparison to date, from which we present a subset of 38 optical frequency ratios and an evaluation of the correlations between them. Four ratios were measured directly for the first time, while others had significantly lower uncertainties than previously achieved, supporting the advance towards a redefinition of the second and the use of optical standards for international time scales. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_06763 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Coordinated international comparisons between optical clocks connected via fiber and satellite links Lindvall, Thomas Pizzocaro, Marco Godun, Rachel M. Abgrall, Michel Akamatsu, Daisuke Amy-Klein, Anne Benkler, Erik Bhatt, Nishant M. Calonico, Davide Cantin, Etienne Cantoni, Elena Cerretto, Giancarlo Chardonnet, Christian Marin, Miguel Angel Cifuentes Clivati, Cecilia Condio, Stefano Curtis, E. Anne Denker, Heiner Donadello, Simone Dörscher, Sören Feng, Chen-Hao Filzinger, Melina Fordell, Thomas Goti, Irene Hanhijärvi, Kalle Hausser, H. Nimrod Hill, Ian R. Hosaka, Kazumoto Huntemann, Nils Johnson, Matthew Y. H. Keller, Jonas Klose, Joshua Kobayashi, Takumi Koke, Sebastian Kuhl, Alexander Targat, Rodolphe Le Legero, Thomas Levi, Filippo Lipphardt, Burghard Lisdat, Christian Liu, Hongli Lodewyck, Jérôme Lopez, Olivier Mazouth-Laurol, Maxime Mehlstäubler, Tanja E. Mura, Alberto Nishiyama, Akiko Nordmann, Tabea Parsons, Adam O. Petit, Gérard Pointard, Benjamin Pottie, Paul-Eric Risaro, Matias Robertson, Billy I. Schioppo, Marco Shang, Haosen Stahl, Kilian Steinel, Martin Sterr, Uwe Tofful, Alexandra Tønnes, Mads Tran, Dang-Bao-An Tunesi, Jacob Wallin, Anders E. Margolis, Helen S. Atomic Physics Optical clocks provide ultra-precise frequency references that are vital for international metrology as well as for tests of fundamental physics. To investigate the level of agreement between different clocks, we simultaneously measured the frequency ratios between ten optical clocks in six different countries, using fiber and satellite links. This is the largest coordinated comparison to date, from which we present a subset of 38 optical frequency ratios and an evaluation of the correlations between them. Four ratios were measured directly for the first time, while others had significantly lower uncertainties than previously achieved, supporting the advance towards a redefinition of the second and the use of optical standards for international time scales. |
| title | Coordinated international comparisons between optical clocks connected via fiber and satellite links |
| topic | Atomic Physics |
| url | https://arxiv.org/abs/2505.06763 |