A clock network for geodesy and fundamental science

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dc.identifier.uri http://dx.doi.org/10.15488/750
dc.identifier.uri http://www.repo.uni-hannover.de/handle/123456789/774
dc.contributor.author Lisdat, Christian
dc.contributor.author Grosche, G.
dc.contributor.author Quintin, N.
dc.contributor.author Shi, C.
dc.contributor.author Raupach, S.M.F.
dc.contributor.author Grebing, C.
dc.contributor.author Nicolodi, D.
dc.contributor.author Stefani, F.
dc.contributor.author Al-Masoudi, A.
dc.contributor.author Dörscher, S.
dc.contributor.author Häfner, Sebastian
dc.contributor.author Robyr, J.-L.
dc.contributor.author Chiodo, N.
dc.contributor.author Bilicki, S.
dc.contributor.author Bookjans, E.
dc.contributor.author Koczwara, A.
dc.contributor.author Koke, S.
dc.contributor.author Kuhl, A.
dc.contributor.author Wiotte, F.
dc.contributor.author Meynadier, F.
dc.contributor.author Camisard, E.
dc.contributor.author Abgrall, M.
dc.contributor.author Lours, M.
dc.contributor.author Legero, T.
dc.contributor.author Schnatz, H.
dc.contributor.author Sterr, Uwe
dc.contributor.author Denker, H.
dc.contributor.author Chardonnet, C.
dc.contributor.author Le Coq, Y.
dc.contributor.author Santarelli, G.
dc.contributor.author Amy-Klein, A.
dc.contributor.author Le Targat, Rodolphe
dc.contributor.author Lodewyck, Jerome
dc.contributor.author Lopez, O.
dc.contributor.author Pottie, P.-E.
dc.date.accessioned 2016-11-29T09:28:11Z
dc.date.available 2016-11-29T09:28:11Z
dc.date.issued 2016
dc.identifier.citation Lisdat, C.; Grosche, G.; Quintin, N.; Shi, C.; Raupach, S.M.F. et al.: A clock network for geodesy and fundamental science. In: Nature Communications 7 (2016),12443. DOI: http://dx.doi.org/10.1038/ncomms12443
dc.description.abstract Leveraging the unrivalled performance of optical clocks as key tools for geo-science, for astronomy and for fundamental physics beyond the standard model requires comparing the frequency of distant optical clocks faithfully. Here, we report on the comparison and agreement of two strontium optical clocks at an uncertainty of 5 × 10−17 via a newly established phase-coherent frequency link connecting Paris and Braunschweig using 1,415 km of telecom fibre. The remote comparison is limited only by the instability and uncertainty of the strontium lattice clocks themselves, with negligible contributions from the optical frequency transfer. A fractional precision of 3 × 10−17 is reached after only 1,000 s averaging time, which is already 10 times better and more than four orders of magnitude faster than any previous long-distance clock comparison. The capability of performing high resolution international clock comparisons paves the way for a redefinition of the unit of time and an all-optical dissemination of the SI-second. eng
dc.description.sponsorship Agence Nationale de la Recherche/ANR blanc LIOM 2011-BS04-009-01
dc.description.sponsorship Agence Nationale de la Recherche/Labex First-TF ANR-10-LABX-48-01
dc.description.sponsorship Agence Nationale de la Recherche/Equipex REFIMEVEþ ANR-11-EQPX-0039
dc.description.sponsorship European Metrology Research Programme/SIB-02 NEAT-FT
dc.description.sponsorship European Metrology Research Programme/SIB-55 ITOC
dc.description.sponsorship Centre National d’E´ tudes Spatiales (CNES)
dc.description.sponsorship Conseil Re´gional Iˆle-de-France (DIM Nano’K)
dc.description.sponsorship CNRS with Action Specifique Gravitation, References, Astronomie, Metrologie (GRAM)
dc.description.sponsorship DFG/RTG/1729
dc.description.sponsorship DFG/CRC/1128 geo-Q
dc.description.sponsorship QUEST
dc.language.iso eng
dc.publisher London : Nature Publishing Group
dc.relation.ispartofseries Nature Communications 7 (2016)
dc.rights CC BY 4.0
dc.rights.uri https://creativecommons.org/licenses/by/4.0/
dc.subject Optical clock performance eng
dc.subject magnetooptical trap eng
dc.subject MOT eng
dc.subject clock eng
dc.subject.ddc 500 | Naturwissenschaften ger
dc.title A clock network for geodesy and fundamental science
dc.type article
dc.type Text
dc.relation.issn 2041-1723
dc.relation.doi http://dx.doi.org/10.1038/ncomms12443
dc.bibliographicCitation.volume 7
dc.bibliographicCitation.firstPage 12443
dc.description.version publishedVersion
tib.accessRights frei zug�nglich


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