Long-distance chronometric leveling with a portable optical clock

authored by: J. Grotti, I. Nosske, S.b. Koller, S. Herbers, H. Denker, L. Timmen, G. Vishnyakova, G. Grosche, T. Waterholter, A. Kuhl, S. Koke, E. Benkler, M. Giunta, L. Maisenbacher, A. Matveev, S. Dörscher, R. Schwarz, A. Al-Masoudi, T.w. Hänsch, Th. Udem, R. Holzwarth, C. Lisdat
Abstract: We have measured the geopotential difference between two locations separated by 457 km by comparison of two optical lattice clocks via an interferometric fiber link, utilizing the gravitational redshift of the clock transition frequency. The 87Sr clocks have been compared side-by-side before and after one of the clocks was moved to the remote location. The chronometrically measured geopotential difference of 3918.1(2.6)m2s-2 agrees with an independent geodetic determination of 3915.88(0.30)m2s-2. The uncertainty of the chronometric geopotential difference is equivalent to an uncertainty of 27cm in height.
Organisation(s): CRC 1464: Relativistic and Quantum-Based Geodesy (TerraQ)
QuantumFrontiers
Institute of Geodesy
External Organisation(s): National Metrology Institute of Germany (PTB)
Max Planck Institute of Quantum Optics (MPQ)
Menlo Systems GmbH
Type: Article
Journal: Physical review applied
Volume: 21
ISSN: 2331-7019
Publication date: 03.06.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy(all)
Electronic version(s): https://doi.org/10.1103/PhysRevApplied.21.L061001 (Access: Open)

BibTeX

@article{dfdaa25738d543889f9adec82cd9219e,
title = "Long-distance chronometric leveling with a portable optical clock",
abstract = "We have measured the geopotential difference between two locations separated by 457 km by comparison of two optical lattice clocks via an interferometric fiber link, utilizing the gravitational redshift of the clock transition frequency. The 87Sr clocks have been compared side-by-side before and after one of the clocks was moved to the remote location. The chronometrically measured geopotential difference of 3918.1(2.6)m2s-2 agrees with an independent geodetic determination of 3915.88(0.30)m2s-2. The uncertainty of the chronometric geopotential difference is equivalent to an uncertainty of 27cm in height.",
author = "J. Grotti and I. Nosske and S.b. Koller and S. Herbers and H. Denker and L. Timmen and G. Vishnyakova and G. Grosche and T. Waterholter and A. Kuhl and S. Koke and E. Benkler and M. Giunta and L. Maisenbacher and A. Matveev and S. D{\"o}rscher and R. Schwarz and A. Al-Masoudi and T.w. H{\"a}nsch and Th. Udem and R. Holzwarth and C. Lisdat",
note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",
year = "2024",
month = jun,
day = "3",
doi = "10.1103/PhysRevApplied.21.L061001",
language = "English",
volume = "21",
journal = "Physical review applied",
issn = "2331-7019",
publisher = "American Physical Society",
number = "6",
}