Electric dipole polarizabilities of alkali metal ions from perturbed relativistic coupled-cluster theory

TL;DR

This paper calculates the electric dipole polarizabilities of singly ionized alkali atoms using advanced relativistic coupled-cluster theory, including Breit interaction corrections, providing precise theoretical data for these ions.

Contribution

It introduces a relativistic coupled-cluster approach to compute polarizabilities of alkali ions, incorporating Breit interaction effects for improved accuracy.

Findings

Computed polarizabilities for Na+, K+, Rb+, Cs+, Fr+

Estimated Breit interaction corrections to polarizabilities

Provided data useful for atomic physics and quantum calculations

Abstract

We use the perturbed relativistic coupled-cluster theory to compute the static electric dipole polarizabilities of the singly ionized alkali atoms, namely, Na$^+$, $^+$, Rb$^+$, Cs$^+$ and Fr$^+$. The computations use the Dirac-Coulomb-Breit Hamiltonian with the no-virual-pair approximation and we also estimate the correction to the static electric dipole polarizability arising from the Breit interaction.