Improved Measurement of the Hydrogen 1S-2S Transition Frequency - Systèmes de Référence Temps Espace Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2011

Improved Measurement of the Hydrogen 1S-2S Transition Frequency

Résumé

We have measured the 1S-2S transition frequency in atomic hydrogen via two-photon spectroscopy on a 5.8 K atomic beam. We obtain f1S-2S=2466061413187035(10)Hz for the hyperfine centroid, in agreement with, but 3.3 times better than the previous result [M. Fischer et al., Phys. Rev. Lett. 92, 230802 (2004)PRLTAO0031-900710.1103/PhysRevLett.92.230802]. The improvement to a fractional frequency uncertainty of 4.2×10-15 arises mainly from an improved stability of the spectroscopy laser, and a better determination of the main systematic uncertainties, namely, the second order Doppler and ac and dc Stark shifts. The probe laser frequency was phase coherently linked to the mobile cesium fountain clock FOM via a frequency comb.
Fichier principal
Vignette du fichier
parthey2011.pdf (338.24 Ko) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03784928 , version 1 (11-05-2023)

Identifiants

Citer

Christian G. Parthey, Arthur Matveev, Janis Alnis, Birgitta Bernhardt, Axel Beyer, et al.. Improved Measurement of the Hydrogen 1S-2S Transition Frequency. Physical Review Letters, 2011, 107, pp.203001. ⟨10.1103/PhysRevLett.107.203001⟩. ⟨hal-03784928⟩
27 Consultations
25 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More