High-precision electric dipole polarizabilities of the clock states in 133Cs

Abstract

We have calculated static and dynamic electric dipole (E1) polarizabilities (αF) of the hyperfine levels of the clock transition precisely in 133Cs. The scalar, vector, and tensor components of αF are estimated by expressing as sum of valence, core, core-core, core-valence, and valence-core contributions that are arising from the virtual and core intermediate states. The dominant valence contributions are estimated by combining a large number of matrix elements of the E1 and magnetic dipole hyperfine interaction operators from the relativistic coupled-cluster method and measurements. For an insightful understanding of their accurate determination, we explicitly give intermediate contributions in different forms to the above quantities. Very good agreement of the static values for the scalar and tensor components with their experimental results suggest that our estimated dynamic αF values can be used reliably to estimate the Stark shifts while conducting high-precision measurements at the respective laser frequency using the clock states of 133Cs.