通过光纤与卫星链路连接的光钟国际比较
原子物理
2025-07-03 v1
摘要
光钟提供超精确的频率参考，对国际计量学以及基本物理学测试至关重要。为探讨不同时钟之间的一致性，我们同时测量了来自六个不同国家十个光钟之间的频率比，使用光纤和卫星链路。这一目前为止最大规模的协调比较中，我们呈现了38个光频率比的子集，并评估了它们之间的相关性。其中四个频率比是首次直接测量，其他频率比的不确定性显著低于以前的水平，支持了对第二的重新定义以及光标准用于国际时间尺度的应用。
引用
@article{arxiv.2505.06763,
title = {Coordinated international comparisons between optical clocks connected via fiber and satellite links},
author = {Thomas Lindvall and Marco Pizzocaro and Rachel M. Godun and Michel Abgrall and Daisuke Akamatsu and Anne Amy-Klein and Erik Benkler and Nishant M. Bhatt and Davide Calonico and Etienne Cantin and Elena Cantoni and Giancarlo Cerretto and Christian Chardonnet and Miguel Angel Cifuentes Marin and Cecilia Clivati and Stefano Condio and E. Anne Curtis and Heiner Denker and Simone Donadello and Sören Dörscher and Chen-Hao Feng and Melina Filzinger and Thomas Fordell and Irene Goti and Kalle Hanhijärvi and H. Nimrod Hausser and Ian R. Hill and Kazumoto Hosaka and Nils Huntemann and Matthew Y. H. Johnson and Jonas Keller and Joshua Klose and Takumi Kobayashi and Sebastian Koke and Alexander Kuhl and Rodolphe Le Targat and Thomas Legero and Filippo Levi and Burghard Lipphardt and Christian Lisdat and Hongli Liu and Jérôme Lodewyck and Olivier Lopez and Maxime Mazouth-Laurol and Tanja E. Mehlstäubler and Alberto Mura and Akiko Nishiyama and Tabea Nordmann and Adam O. Parsons and Gérard Petit and Benjamin Pointard and Paul-Eric Pottie and Matias Risaro and Billy I. Robertson and Marco Schioppo and Haosen Shang and Kilian Stahl and Martin Steinel and Uwe Sterr and Alexandra Tofful and Mads Tønnes and Dang-Bao-An Tran and Jacob Tunesi and Anders E. Wallin and Helen S. Margolis},
journal= {arXiv preprint arXiv:2505.06763},
year = {2025}
}
备注
25 pages, 6 figures