Demonstration of a dual alkali Rb/Cs fountain clock.
We report the operation of a dual Rb/Cs atomic fountain clock. (133)Cs and (87)Rb atoms are cooled, launched, and detected simultaneously in LNE-SYRTE's FO2 double fountain. The dual clock operation occurs with no degradation of either the stability or the accuracy. We describe the key features for achieving such a simultaneous operation. We also report on the results of the first Rb/Cs frequency measurement campaign performed with FO2 in this dual atom clock configuration, including a new determination of the absolute (87)Rb hyperfine frequency.
Guéna
Jocelyne
J
Laboratoire National de Métrologie-Système de Référence Temps Espace, Observatoire de Paris, France. jocelyne.guena@obspm.fr
Rosenbusch
Peter
P
Laurent
Philippe
P
Abgrall
Michel
M
Rovera
Daniele
D
Santarelli
Giorgio
G
Tobar
Michael E
ME
Bize
Sébastien
S
Clairon
André
A