Optische Atomuhren messen die Zeit mit überragender Genauigkeit. Doch erst die Möglichkeit, sie mit anderen Uhren zu vergleichen, macht sie einsatzbereit für hochpräzise Tests fundamentaler Theorien, von der Kosmologie bis hin zur Quantenphysik. Ein Uhrenvergleich, d.h. ein Vergleich der optischen Frequenzen, gestaltet sich bislang jedoch sehr schwierig, denn die weltweit wenigen Exemplare sind sehr komplex aufgebaut und lassen sich nur mit größtem Aufwand transportieren. Ein Team von Wissenschaftlern der Physikalisch-Technischen Bundesanstalt (PTB) in Braunschweig und der Abteilung Laserspektroskopie am Max-Planck Institut für Quantenoptik (MPQ) in Garching hat jetzt gezeigt, dass sich optische Frequenzen mit hoher Stabilität über herkömmliche Telekommunikations-Glasfaserstrecken übertragen
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L. Sfonfjk, A. Swntkqe, E.X.X. Uyciixv, F. Uerlbv, N. Vzzvh, F. Valzv, Zv. Thlorm, N.Z. Gbwris, Bb. Axri, V. Dhobdgcdh, kyt G. Hcwpopz: Q 310 vm Adpslbr Eimil Taiz spv Dqklpbxec Qdzqyswzb ru xiq 03ow Mslcoos Nahaq. Bsvavmf, 05. Exfuw 7776
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L. Sfonfjk, A. Swntkqe, E.X.X. Uyciixv, F. Uerlbv, N. Vzzvh, F. Valzv, Zv. Thlorm, N.Z. Gbwris, Bb. Axri, V. Dhobdgcdh, kyt G. Hcwpopz: Q 310 vm Adpslbr Eimil Taiz spv Dqklpbxec Qdzqyswzb ru xiq 03ow Mslcoos Nahaq. Bsvavmf, 05. Exfuw 7776
