Abstract
The Hartree-Fock perturbation theory for theN-electron system with a one-particle perturbation is rederived using the resolvent operator formalism. It is shown that the second-order contribution to the total energy can be expressed in a compact form using a properly defined effective one-particle operator. Relations of the Hartree-Fock perturbation theory with both the many-body theory and the regular Hartree-Fock formalism are discussed.
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Polák, R., Kvasnička, V. Hartree-Fock perturbation theory for systems with one-particle perturbation. Czech J Phys 23, 1298–1304 (1973). https://doi.org/10.1007/BF01586519
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DOI: https://doi.org/10.1007/BF01586519