Long-distance chronometric leveling with a portable optical clock

verfasst von
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.

Organisationseinheit(en)
SFB 1464: Relativistische und quanten-basierte Geodäsie (TerraQ)
QuantumFrontiers
Institut für Erdmessung
Externe Organisation(en)
Physikalisch-Technische Bundesanstalt (PTB)
Max-Planck-Institut für Quantenoptik (MPQ)
Menlo Systems GmbH
Typ
Artikel
Journal
Physical review applied
Band
21
ISSN
2331-7019
Publikationsdatum
03.06.2024
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Physik und Astronomie (insg.)
Elektronische Version(en)
https://doi.org/10.1103/PhysRevApplied.21.L061001 (Zugang: Offen)