Maller-Plesset perturbation

So for, we ve presented only general perturbation theory results.We ll now turn to the particular case of Maller-Plesset perturbation theory. Here, Hg is defined as the sum of the one-electron Fock operators ... 

Maller-Plesset Perturbation Theory by a Laplace Transform Approach. 

M. Haser and J. Almlof, Vniv. Minn. Supercomp. Inst. Res. Rep. 91/221 (August 1991). Laplace Transform Techniques in Maller-Plesset Perturbation Theory. 

Figure 1 A family tree of quantum chemistry DFT, density functional theory QMC, quantum Monte Carlo RRV, Rayleigh-Ritz variational theory X-a, X-alpha method KS, Kohn-Sham approach LDA, BP, B3LYP, density functional approximations VQMC, variational QMC DQMC, diffusion QMC FNQMC, fixed-node QMC PIQMC, path integral QMC EQMC, exact QMC HF, Hartree-Fock EC, explicitly correlated functions P, perturbational MP2, MP4, Maller-Plesset perturbational Cl, configuration interaction MRCI, multireference Cl FCI, full Cl CC, CCSD(T), coupled-cluster approaches. Other acronyms are defined in the text.

Electron correlation was treated by the CIPSI multi-reference perturbation algorithm ([24,25] and refs, therein). The Quasi Degenerate Perturbation Theory (QDPT) version of the method was employed, with symmetrisation of the effective hamiltonian [26], and the Maller-Plesset baricentric (MPB) partition of the C.I. hamiltonian. 

Maller-Plesset Version ofRayleigh-Schrddinger Perturbation Theory... 

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