Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

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 November 8, 2024)

Issues

If you have any questions about this publication or are having problems accessing it, please contact reflib@nist.gov.

Created January 1, 2004, Updated February 17, 2017