Goldstone diagrams for the second-order corrections to the energy (A and B) and self-energy (C through F).
The errors in (in mE h) for HOMO and LUMO of N2 evaluated by MC-MP2/6-31G** (frozen core) as a function of the number of MC steps.
(in E h) of occupied orbitals of H2O evaluated by MC-MP2/6-31G** (frozen core) as a function of the number of MC steps.
The same as Fig. 3 , but for virtual orbitals.
The CPU time (in s) spent by the MC-MP2 (N = 108) calculations as a function of the number of MO's (m). The dashed line and curve are linear and quadratic functions of m to guide the eyes. The plot for O2 is indistinguishable from that of N2.
The second-order Dyson self-energies (in E h) for HOMO and LUMO of various molecules evaluated by the conventional and MC methods of MP2/6-31G** (frozen core).
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