High precision measurement of the static dipole polarizability of cesium.

Phys Rev Lett

Mail stop 71-259, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.

Published: October 2003

AI Article Synopsis

  • The scalar dipole polarizability alpha(0) of cesium 6(2)S(1/2) was measured to be 6.611±0.009 x 10(-39) C m(2)/V, representing a significant improvement in measurement precision.
  • The study achieved a 0.14% uncertainty, which is a 14-fold enhancement over the previous results.
  • It also determined lifetimes for the 6(2)P(1/2) and 6(2)P(3/2) states, as well as the cesium-cesium dispersion coefficient C6, using established methods.

Article Abstract

The cesium 6(2)S(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+/-0.6a(3)(0). The 0.14% uncertainty is a factor of 14 improvement over the previous measurement. Values for the 6(2)P(1/2) and 6(2)P(3/2) lifetimes and the 6(2)S(1/2) cesium-cesium dispersion coefficient C6 are determined from alpha(0) using the procedure of Derevianko and Porsev [Phys. Rev. A 65, 053403 (2002)]].

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http://dx.doi.org/10.1103/PhysRevLett.91.153001DOI Listing

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