diff --git a/Manuscript/EPAWTFT.tex b/Manuscript/EPAWTFT.tex index 58e8646..1d83eff 100644 --- a/Manuscript/EPAWTFT.tex +++ b/Manuscript/EPAWTFT.tex @@ -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,