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- W1852265297 abstract "An overview of the relativistic theory of electronic structure and many-body perturbation theory is presented. The theoretical principles are illustrated by our recent work using finite basis sets of analytic functions. It is now possible to perform basis set Dirac-Hartree-Fock calculations for atoms which are comparable in accuracy (1 part in 108) with finite difference approximations. Finite basis sets have the additional advantage that they make possible the evaluation of many-body perturbation theory contributions within the Furry bound state interaction picture of quantum electrodynamics. We demonstrate the versatility of the method with some calculations of many-body corrections to the Dirac-Hartree-Fock ground states of some He- and Ne-like systems, including contributions in which virtual äectron-positron pairs are created. The prospects for the exploration of new areas of atomic structure theory and the development of relativistic molecular electronic structure calculations using analytic finite basis set methods are assessed." @default.
- W1852265297 created "2016-06-24" @default.
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- W1852265297 date "1989-01-01" @default.
- W1852265297 modified "2023-10-03" @default.
- W1852265297 title "On the Relativistic Many-Body Perturbation Theory of Atomic and Molecular Electronic Structure" @default.
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- W1852265297 doi "https://doi.org/10.1007/978-3-642-93424-7_15" @default.
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