High precision measurement of the static dipole polarizability of cesium

Details High precision measurement of the static dipole polarizability of cesium High precision measurement of the static dipole polarizability of cesium

2003-05-16

arxiv.org/abs/physics/0305074v2

Physics

Atomic Physics

4 pages and 7 figures. 2nd version: Small changes to imrove clarity prior to final acceptance by PRL

Scientific paper

10.1103/PhysRevLett.91.153001

The cesium 6S_1/2 scalar dipole polarizability alpha_0 has been determined from the time-of-flight of laser cooled and launched cesium atoms traveling through an electric field. We find alpha_0 = 6.611+-0.009 x 10^-39 C m^2/V= 59.42+-0.08 x 10^-24 cm^3 = 401.0+-0.6 a_0^3. The 0.14% uncertainty is a factor of fourteen improvement over the previous measurement. Values for the 6P_1/2 and 6P_3/2 lifetimes and the 6S_1/2 cesium-cesium dispersion coefficient C_6 are determined from alpha_0 using the procedure of Derevianko and Porsev [Phys. Rev. A 65, 053403 (2002)].

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