Cold collision frequency shifts in a 87Rb atomic fountain.
We present measurements of cavity frequency pulling and collisional frequency shifts in a 87Rb fountain with a frequency resolution of 3x10(-16). Agreement with theory is found for the cavity pulling and the measured collisional shifts. The clock shift is found at least 50 times smaller than in 133Cs.
Sortais
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Y
BNM-LPTF, Observatoire de Paris, 61 avenue de l'Observatoire, 75014 Paris, France.
Bize
S
S
Nicolas
C
C
Clairon
A
A
Salomon
C
C
Williams
C
C