MBPT is applied in catalysis by starting with a simplified model of the catalyst's electronic structure. This model can be generated using methods like Density Functional Theory (DFT) or Hartree-Fock calculations. Once the initial approximation is set, MBPT introduces perturbations to account for electron-electron interactions. These perturbations are treated systematically, often using techniques such as Green's functions or Feynman diagrams. For example, in the study of metal catalysts, MBPT can be used to calculate the adsorption energies of reactants on the catalyst surface, which are crucial for understanding the catalytic activity. By including electron correlation effects, MBPT provides a more accurate description of these energies compared to mean-field methods.
