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Cold Collision Frequency Shifts in a 87Rb Atomic Fountain



Y Sortais, S Bize, C Nicolas, A Clairon, C Salomon, C Williams


We present measurements of cavity frequency pulling and collisional frequency shifts in a 87Rb fountain with a frequency resolution of 3 x 10-16. 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.
Physical Review Letters
No. 15


atomic clocks, atomic fountain, clock shift, ultracold collisions


Sortais, Y. , Bize, S. , Nicolas, C. , Clairon, A. , Salomon, C. and Williams, C. (2000), Cold Collision Frequency Shifts in a <sup>87</sup>Rb Atomic Fountain, Physical Review Letters (Accessed December 2, 2023)
Created September 30, 2000, Updated October 12, 2021