Abstract
The computation of first-order relativistic corrections to electrical response properties has been implemented into the Dalton program at the level of closed-shell coupled-cluster theory, within the framework of the direct perturbation theory (DPT) of relativistic effects. Calculations of the first-order relativistic DPT corrections to the static and frequency-dependent dipole polarizability (α) and second dipole hyperpolarizability (γ) of the Ne atom illustrate possible applications of the new code.
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