Bulletin of the American Physical Society
APS March Meeting 2019
Volume 64, Number 2
Monday–Friday, March 4–8, 2019; Boston, Massachusetts
Session Y36: Progress and Applications of Optical Clocks
11:15 AM–2:15 PM,
Friday, March 8, 2019
BCEC Room: 205C
Sponsoring Unit: DAMOP
Chair: Dominik Schneble, Stony Brook University
Abstract: Y36.00002 : Geodesy and metrology with a transportable optical clock*
11:51 AM–12:27 PM
To perform such tasks in a competitive way, it is not sufficient to demonstrate the clock performance in the laboratory, but transportable clocks need to show reproducibility of their frequency at the level of few parts in 1017 and better in the various locations to which they are transported and where they are used.
At Physikalisch-Technische Bundesanstalt (PTB), we have developed such a transportable optical clock  that has been tested for the applications described above by measurement campaigns outside the laboratory. I will present results of the measurement campaigns we have performed so far and discuss the perspective of our apparatus for chronometric levelling.
 A. Ludlow, Nature Phys. 14, 432-432 (2018)
 T. Mehlstäubler et al., Rep. Prog. Phys 81, 064401 (2018)
 J. Grotti et al., Nature Phys. 14, 437 (2018)
 H. Denker et al., J. Geod. 92, 487 (2018)
 S. B. Koller et al., Phys. Rev. Lett. 118, 073601 (2017)
*We acknowledge support by the German Research Foundation (DFG) within CRC 1128 geo-Q, the Marie-Curie Action ITN FACT, and the EMRP project ITOC. The EMRP is jointly funded by the EMRP participating countries within EURAMET and the European Union.
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
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