Long-distance chronometric leveling with a portable optical clock

Fuente: arXiv

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Bibliographic Details
Main Authors:	Grotti, J., Nosske, I., Koller, S. B., Herbers, S., Denker, H., Timmen, L., Vishnyakova, G., Grosche, G., Waterholter, T., Kuhl, A., Koke, S., Benkler, E., Giunta, M., Maisenbacher, L., Matveev, A., Dörscher, S., Schwarz, R., Al-Masoudi, A., Hänsch, T. W., Udem, Th., Holzwarth, R., Lisdat, C.
Format:	Preprint
Published:	2023
Subjects:	Atomic Physics Quantum Physics
Online Access:	Acceder al recurso
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_version_	1866912137516941312
author	Grotti, J. Nosske, I. Koller, S. B. Herbers, S. Denker, H. Timmen, L. Vishnyakova, G. Grosche, G. Waterholter, T. Kuhl, A. Koke, S. Benkler, E. Giunta, M. Maisenbacher, L. Matveev, A. Dörscher, S. Schwarz, R. Al-Masoudi, A. Hänsch, T. W. Udem, Th. Holzwarth, R. Lisdat, C.
author_facet	Grotti, J. Nosske, I. Koller, S. B. Herbers, S. Denker, H. Timmen, L. Vishnyakova, G. Grosche, G. Waterholter, T. Kuhl, A. Koke, S. Benkler, E. Giunta, M. Maisenbacher, L. Matveev, A. Dörscher, S. Schwarz, R. Al-Masoudi, A. Hänsch, T. W. Udem, Th. Holzwarth, R. Lisdat, C.
contents	We have measured the geopotential difference between two locations separated by $457~\mathrm{km}$ by comparison of two optical lattice clocks via an interferometric fiber link, utilizing the gravitational redshift of the clock transition frequency. The $^{87}$Sr 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 $3918.1(2.6)\,\mathrm{m^2 \, s^{-2}}$ agrees with an independent geodetic determination of $3915.88(0.30)\,\mathrm{m^2 \, s^{-2}}$. The uncertainty of the chronometric geopotential difference is equivalent to an uncertainty of $27~\mathrm{cm}$ in height.
format	Preprint
id	arxiv_https___arxiv_org_abs_2309_14953
institution	arXiv
publishDate	2023
record_format	arxiv
spellingShingle	Long-distance chronometric leveling with a portable optical clock Grotti, J. Nosske, I. Koller, S. B. Herbers, S. Denker, H. Timmen, L. Vishnyakova, G. Grosche, G. Waterholter, T. Kuhl, A. Koke, S. Benkler, E. Giunta, M. Maisenbacher, L. Matveev, A. Dörscher, S. Schwarz, R. Al-Masoudi, A. Hänsch, T. W. Udem, Th. Holzwarth, R. Lisdat, C. Atomic Physics Quantum Physics We have measured the geopotential difference between two locations separated by $457~\mathrm{km}$ by comparison of two optical lattice clocks via an interferometric fiber link, utilizing the gravitational redshift of the clock transition frequency. The $^{87}$Sr 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 $3918.1(2.6)\,\mathrm{m^2 \, s^{-2}}$ agrees with an independent geodetic determination of $3915.88(0.30)\,\mathrm{m^2 \, s^{-2}}$. The uncertainty of the chronometric geopotential difference is equivalent to an uncertainty of $27~\mathrm{cm}$ in height.
title	Long-distance chronometric leveling with a portable optical clock
topic	Atomic Physics Quantum Physics
url	https://arxiv.org/abs/2309.14953