Coupled clusters and the electron gas at metallic densities

R. F. Bishop, K. H. Lührmann

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    Abstract

    The coupled cluster formalism is applied to ground-state correlations in jellium. A state-averaging procedure which enables us to include essentially all of the important microscopic effects at metallic densities, is shown by comparison with exact RPA results to be accurate to about 1%. Our final results at metallic densities are also compared with recent exact stochastic simulations of the many-body Schrödinger equation and seen to be accurate to the same level. They probably therefore provide the currently best available microscopic description of this systems.
    Original languageEnglish
    Pages (from-to)873-874
    Number of pages2
    JournalPhysica
    Volume108B
    DOIs
    Publication statusPublished - 1981

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