{
  "annotation_id": "e3a2d4de-d6aa-4266-a392-29900c657528",
  "date_created": "2026-03-02T18:00:53.687000Z",
  "date_modified": "2026-03-02T18:00:53.687000Z",
  "file_hash": "164d460f7c0c97d77ad0e199bb843cfefb5b648af04b1c47bf7ba4297f3baa94",
  "private": false,
  "record": {
    "abstract": "By splitting the Coulomb interaction into long-range and short-range\ncomponents, we decompose the energy of a quantum electronic system into\nlong-range and short-range contributions. We show that the long-range part of\nthe energy can be efficiently calculated by traditional wave function methods,\nwhile the short-range part can be handled by a density functional. The analysis\nof this functional with respect to the range of the associated interaction\nreveals that, in the limit of a very short-range interaction, the short-range\nexchange-correlation energy can be expressed as a simple local functional of\nthe on-top pair density and its first derivatives. This provides an explanation\nfor the accuracy of the local density approximation (LDA) for the short-range\nfunctional. Moreover, this analysis leads also to new simple approximations for\nthe short-range exchange and correlation energies improving the LDA.",
    "arxiv_id": "physics/0410062",
    "authors": [
      "Julien Toulouse",
      "Francois Colonna",
      "Andreas Savin"
    ],
    "categories": [
      "physics.chem-ph",
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.70.062505",
    "journal_ref": "Phys. Rev. A 70, 062505 (2004)",
    "title": "Long-range/short-range separation of the electron-electron interaction   in density functional theory",
    "url": "https://arxiv.org/abs/physics/0410062"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e3c1507c-103a-4f1f-9a97-0e8f02b2114d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}