Tune-out wavelengths of the hyperfine components of the ground level of $^{133}$Cs atoms

TL;DR

This paper calculates hyperfine-resolved tune-out wavelengths and polarizabilities for ground-state $^{133}$Cs atoms using a relativistic configuration interaction approach, providing precise hyperfine shift data.

Contribution

It introduces a semiempirical relativistic method to accurately determine hyperfine component polarizabilities and tune-out wavelengths of $^{133}$Cs atoms.

Findings

Hyperfine shifts of primary tune-out wavelengths are about -0.0135 nm and 0.0106 nm.

Tensor polarizability contributes about 10^{-5} to 10^{-6} nm to tune-out wavelengths.

Calculated hyperfine shifts are close to hyperfine interaction energies.

Abstract

The static and dynamic electric-dipole polarizabilities and tune-out wavelengths for the ground state of Cs atoms are calculated by using a semiempirical relativistic configuration interaction plus core polarization approach. By considering the hyperfine splittings, the static and dynamic polarizabilities, hyperfine Stark shifts, and tune-out wavelengths of the hyperfine components of the ground level of $^{133}$Cs atoms are determined. It is found that the hyperfine shifts of the first primary tune-out wavelengths are about $-$0.0135 nm and 0.0106 nm, which are very close to the hyperfine interaction energies. Additionally, the contribution of the tensor polarizability to the tune-out wavelengths is determined to be about $10^{-5} \sim 10^{-6}$ nm.