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Proceedings Paper

Precision spectroscopy on atomic hydrogen
Author(s): Christian G. Parthey; Arthur Matveev; Janis Alnis; Axel Beyer; Randolf Pohl; Katharina Predehl; Thomas Udem; Nikolai Kolachevsky; Michel Abgrall; Daniele Rovera; Christophe Salomon; Philippe Laurent; Theodor W. Hänsch
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Paper Abstract

We present a measurement of the 1S-2S transition frequency in atomic hydrogen by two-photon spectroscopy yielding f1S-2S = 2 466 061 413 187 035 (10) Hz corresponding to a fractional frequency uncertainty of 4.2×10-15. The result presents a more than three times improvement on the previous best measurement.

Paper Details

Date Published: 8 September 2011
PDF: 7 pages
Proc. SPIE 8132, Time and Frequency Metrology III, 813202 (8 September 2011); doi: 10.1117/12.893694
Show Author Affiliations
Christian G. Parthey, Max-Planck-Institut für Quantenoptik (Germany)
Arthur Matveev, Max-Planck-Institut für Quantenoptik (Germany)
Janis Alnis, Max-Planck-Institut für Quantenoptik (Germany)
Axel Beyer, Max-Planck-Institut für Quantenoptik (Germany)
Randolf Pohl, Max-Planck-Institut für Quantenoptik (Germany)
Katharina Predehl, Max-Planck-Institut für Quantenoptik (Germany)
Thomas Udem, Max-Planck-Institut für Quantenoptik (Germany)
Nikolai Kolachevsky, Max-Planck-Institut für Quantenoptik (Germany)
Michel Abgrall, LNE-SYRTE, Observatoire de Paris (France)
Daniele Rovera, LNE-SYRTE, Observatoire de Paris (France)
Christophe Salomon, Lab. Kastler-Brossel, CNRS (France)
Philippe Laurent, LNE-SYRTE, Observatoire de Paris (France)
Theodor W. Hänsch, Max-Planck-Institut für Quantenoptik (Germany)
Ludwig-Maximilians-Univ. München (Germany)


Published in SPIE Proceedings Vol. 8132:
Time and Frequency Metrology III
Tetsuya Ido; Thomas R. Schibli, Editor(s)

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