Details
Originalsprache | Englisch |
---|---|
Seiten (von - bis) | 437-441 |
Seitenumfang | 5 |
Fachzeitschrift | Nature physics |
Jahrgang | 14 |
Ausgabenummer | 5 |
Frühes Online-Datum | 12 Feb. 2018 |
Publikationsstatus | Veröffentlicht - Mai 2018 |
Abstract
Optical atomic clocks, due to their unprecedented stability 1-3 and uncertainty 3-6 , are already being used to test physical theories 7,8 and herald a revision of the International System of Units 9,10 . However, to unlock their potential for cross-disciplinary applications such as relativistic geodesy 11 , a major challenge remains: their transformation from highly specialized instruments restricted to national metrology laboratories into flexible devices deployable in different locations 12-14 . Here, we report the first field measurement campaign with a transportable 87 Sr optical lattice clock 12 . We use it to determine the gravity potential difference between the middle of a mountain and a location 90 km away, exploiting both local and remote clock comparisons to eliminate potential clock errors. A local comparison with a 171 Yb lattice clock 15 also serves as an important check on the international consistency of independently developed optical clocks. This campaign demonstrates the exciting prospects for transportable optical clocks.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Allgemeine Physik und Astronomie
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in: Nature physics, Jahrgang 14, Nr. 5, 05.2018, S. 437-441.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Geodesy and metrology with a transportable optical clock
AU - Grotti, Jacopo
AU - Koller, Silvio
AU - Vogt, Stefan
AU - Häfner, Sebastian
AU - Sterr, Uwe
AU - Lisdat, Christian
AU - Denker, Heiner
AU - Voigt, Christian
AU - Timmen, Ludger
AU - Rolland, Antoine
AU - Baynes, Fred N.
AU - Margolis, Helen S.
AU - Zampaolo, Michel
AU - Thoumany, Pierre
AU - Pizzocaro, Marco
AU - Rauf, Benjamin
AU - Bregolin, Filippo
AU - Tampellini, Anna
AU - Barbieri, Piero
AU - Zucco, Massimo
AU - Costanzo, Giovanni A.
AU - Clivati, Cecilia
AU - Levi, Filippo
AU - Calonico, Davide
N1 - Funding Information: We would like to thank T. Zampieri for his technical support at LSM and A. Mura and Consorzio TOP-IX for technical help in the access to the optical fibre. The authors acknowledge funding from European Metrology Research Program (EMRP) Project SIB55 ITOC, the EU Innovative Training Network (ITN) Future Atomic Clock Technology (FACT), the DFG funded CRC 1128 geo-Q (Projects A03 and C04) and RTG 1728 and the UK National Measurement System Quantum, Electromagnetics and Time Programme. The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union.
PY - 2018/5
Y1 - 2018/5
N2 - Optical atomic clocks, due to their unprecedented stability 1-3 and uncertainty 3-6 , are already being used to test physical theories 7,8 and herald a revision of the International System of Units 9,10 . However, to unlock their potential for cross-disciplinary applications such as relativistic geodesy 11 , a major challenge remains: their transformation from highly specialized instruments restricted to national metrology laboratories into flexible devices deployable in different locations 12-14 . Here, we report the first field measurement campaign with a transportable 87 Sr optical lattice clock 12 . We use it to determine the gravity potential difference between the middle of a mountain and a location 90 km away, exploiting both local and remote clock comparisons to eliminate potential clock errors. A local comparison with a 171 Yb lattice clock 15 also serves as an important check on the international consistency of independently developed optical clocks. This campaign demonstrates the exciting prospects for transportable optical clocks.
AB - Optical atomic clocks, due to their unprecedented stability 1-3 and uncertainty 3-6 , are already being used to test physical theories 7,8 and herald a revision of the International System of Units 9,10 . However, to unlock their potential for cross-disciplinary applications such as relativistic geodesy 11 , a major challenge remains: their transformation from highly specialized instruments restricted to national metrology laboratories into flexible devices deployable in different locations 12-14 . Here, we report the first field measurement campaign with a transportable 87 Sr optical lattice clock 12 . We use it to determine the gravity potential difference between the middle of a mountain and a location 90 km away, exploiting both local and remote clock comparisons to eliminate potential clock errors. A local comparison with a 171 Yb lattice clock 15 also serves as an important check on the international consistency of independently developed optical clocks. This campaign demonstrates the exciting prospects for transportable optical clocks.
UR - http://www.scopus.com/inward/record.url?scp=85041909833&partnerID=8YFLogxK
U2 - 10.1038/s41567-017-0042-3
DO - 10.1038/s41567-017-0042-3
M3 - Article
AN - SCOPUS:85041909833
VL - 14
SP - 437
EP - 441
JO - Nature physics
JF - Nature physics
SN - 1745-2473
IS - 5
ER -