432 citations · 1.6k across the 12 of their papers we have counts for
6 papers · 1 filter
Cold atom Clocks and Applications
S. Bize, P. Laurent, M. Abgrall +14
This paper describes advances in microwave frequency standards using laser-cooled atoms at BNM-SYRTE. First, recent improvements of the Cs and Rb atomic fountains ar…
First observation of feshbach resonances at very low magnetic field in a 133Cs fountain
H. Marion, S. Bize, L. Cacciapuoti +9
One of the main limitations of cesium atomic fountains has been the cold collision frequency shift. By using a method based on a transfer of population by adiabatic passage allowin…
Precision Spectroscopy of Atomic Hydrogen and Variations of Fundamental Constants
M. Fischer, N. Kolachevsky, M. Zimmermann +14
In 2003 we have measured the absolute frequency of the two-photon transition in atomic hydrogen. We observed a variati…
A Search for Variations of Fundamental Constants using Atomic Fountain Clocks
H. Marion, F. Pereira Dos Santos, M. Abgrall +12
Over five years we have compared the hyperfine frequencies of 133Cs and 87Rb atoms in their electronic ground state using several laser cooled 133Cs and 87Rb atomic fountains with…
133Cs87Rb Laser Cooled Dual Fountain
D. Calonico, Y. Sortais, S. Bize +5
At BNM-SYRTE laboratories in Paris two 133Cs fountains and a 87Rb one have been already demonstrated. This paper illustrates the construction of a 87Rb and Cs dual fountain realize…
Controlling the cold collision shift in high precision atomic interferometry
F. Pereira Dos Santos, H. Marion, S. Bize +3
We present here a new method based on a transfer of population by adiabatic passage that allows to prepare cold atomic samples with a well defined ratio of atomic density and atom…