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Proceedings Paper

The Stark effect of the hyperfine structure of cesium
Author(s): A. Weis; S. Ulzega
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Paper Abstract

We present an overview of the quadratic Stark effect in the ground state of alkali atoms. On the basis of symmetry arguments we show that the second order Stark interaction vanishes in the spherically symmetric S1/2 ground state while an extension of the perturbation theory to third order, including the hyperfine interaction, leads to scalar and tensor polarizabilities. We discuss the effect on the hyperfine structure of the Cs ground state. We report 2 new independent measurements of the tensor polarizability &agr;2(3) (F = 4), which are in very good agreement with prior experiments, and we present an extension of the theory of the Stark interaction which bridges a 40 year old discrepancy between experimental and theoretical values of the tensor polarizability. We also report the presence of a sign error in prior theory and discuss its relevance for primary frequency standards.

Paper Details

Date Published: 13 March 2007
PDF: 11 pages
Proc. SPIE 6604, 14th International School on Quantum Electronics: Laser Physics and Applications, 660408 (13 March 2007); doi: 10.1117/12.726805
Show Author Affiliations
A. Weis, Univ. of Fribourg (Switzerland)
S. Ulzega, Univ. of Fribourg (Switzerland)

Published in SPIE Proceedings Vol. 6604:
14th International School on Quantum Electronics: Laser Physics and Applications

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