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Ballistic Expansion and Collisions in the Cs Atomic Fountain Clock

Published

Author(s)

V Venturi, Eite Tiesinga, Carl J. Williams

Abstract

We study the effects of the ballistic expansion of an atomic cloud on theoretical predictions of the collisional shifts in the Cesium atomic fountain clock. Due to the strong energy dependence of the collisional shift, we find that the ballistic expansion is important and consequently the calculated collisional clock shifts are sensitive to the atomic density and distribution of velocities of the initial atomic cloud.
Citation
Physical Review A (Atomic, Molecular and Optical Physics)

Keywords

ballistic expansion, cesium atomic fountain clock, collisional clock shift

Citation

Venturi, V. , Tiesinga, E. and Williams, C. (2004), Ballistic Expansion and Collisions in the Cs Atomic Fountain Clock, Physical Review A (Atomic, Molecular and Optical Physics) (Accessed April 23, 2024)
Created January 1, 2004, Updated February 17, 2017