Relativistic and Radiative Correction to Dynamical Polarizability for Light Atoms

The effective operators of leading-order relativistic corrections to dynamic polarizability of light atomic systems are obtained by using Non-Relativistic Quantum Electrodynamics approach. Also, effective operators of radiative corrections are obtained for hydrogen-like atoms by applying perturbative method on non-relativistic terms. The Bethe-logarithm correction is included in our calculations.