Self-energy Effects on Nuclear Magnetic Resonance Parameters within Quantum Electrodynamics Perturbation Theory

Rodolfo H. Romero; Gustavo A. Aucar

doi:10.3390/i3080914

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Article

31 August 2002

Self-energy Effects on Nuclear Magnetic Resonance Parameters within Quantum Electrodynamics Perturbation Theory

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Facultad de Ciencias Exactas, Universidad Nacional del Nordeste, Avenida Libertad 5500 (3400) Corrientes, Argentina

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Int. J. Mol. Sci.2002, 3(8), 914-930;https://doi.org/10.3390/i3080914

This article belongs to the Special Issue Recent Advances in Nuclear Magnetic Shielding Theory

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Abstract

A theory for the calculation of self-energy corrections to the nuclear magnetic parameters is given in this paper. It is based on the S-matrix formulation of bound-state quantum electrodynamics (QED). Explicit expressions for the various terms of the S-matrix are given. The interpretation of the self-energy, one- and two-vertex terms and some perspective for possible future developments are discussed.

Keywords:

NMR parameters; Quantum Electrodynamics; S-matrix theory; Selfenergy correction; Dirac-Fock perturbation theory

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