Electric Quadrupole Moment of a Hydrogenlike Ion in $s$ and $p_{1/2}$ States

Y. S. Kozhedub, V. M. Shabaev

Relativistic formulas for the electric quadrupole moment of a hydrogenlike atom, induced by the hyperfine interaction, are derived for $n{s}_{1/2}$ and $n{p}_{1/2}$ states. Both the ma…