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Pierre-Francois Loos 2020-12-04 09:09:08 +01:00
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@ -183,8 +183,8 @@ Together with the variational principle, perturbation theory is one of the very
In particular, time-independent Rayleigh--Schr\"odinger perturbation theory \cite{RayleighBook,Schrodinger_1926} has cemented itself as an instrument of choice in the armada of theoretical and computational methods that have been developed for this purpose. \cite{SzaboBook,JensenBook,CramerBook,HelgakerBook,ParrBook,FetterBook,ReiningBook}
% Moller-Plesset
M\o{}ller--Plesset (MP) perturbation theory remains one of the most popular methods for computing the electron
correlation energy.\cite{Moller_1934}
The workhorse of time-independent perturbation theory is most certainly M\o{}ller--Plesset (MP) perturbation
theory which remains one of the most popular methods for computing the electron correlation energy.\cite{Moller_1934}
In this approach, the exact electronic energy is estimated by constructing a perturbative correction on top
of a mean-field Hartree--Fock (HF) approximation.\cite{SzaboBook}
The popularity of MP theory stems from its black-box nature and relatively low computational scaling,