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Convergence of density-matrix expansions for nuclear interactions

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arxiv 1003.2543 v1 pith:KFFSN43G submitted 2010-03-12 nucl-th cond-mat.mes-hall

B.G. Carlsson , J. Dobaczewski This is my paper · ORCID
classification nucl-thcond-mat.mes-hall
keywords convergenceexpansionsdensity-matrixenergiesinteractionnuclearpropertiesallow
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We extend density-matrix expansions in nuclei to higher orders in derivatives of densities and test their convergence properties. The expansions allow for converting the interaction energies characteristic to finite- and short-range nuclear effective forces into quasi-local density functionals. We also propose a new type of expansion that has excellent convergence properties when benchmarked against the binding energies obtained for the Gogny interaction.

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  1. Extended Skyrme effective interactions with higher-order momentum-dependence for transport models and neutron stars

    nucl-th 2024-12 conditional novelty 6.0 of 10

    The authors generalize the Skyrme pseudopotential to N5LO with p^10 momentum dependence, fit it to the optical potential up to 2 GeV, and show the resulting interactions reproduce HADES proton flow data.

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