{
  "annotation_id": "c2236de4-b4db-4b30-b82d-bf12e4af9916",
  "date_created": "2026-03-02T18:00:52.609000Z",
  "date_modified": "2026-03-02T18:00:52.609000Z",
  "file_hash": "e5414246000fdf7ecbb0af6b589284ed85faf43835bf52949007a746598808a1",
  "private": false,
  "record": {
    "abstract": "In this paper we employ the hydrodynamic formulation of time-dependent\ndensity functional theory to obtain the van der Waal coefficients $C_{6}$ and\n$C_{8}$ of alkali-metal clusters of various sizes including very large\nclusters. Such calculation becomes computationally very demanding in the\norbital-based Kohn-Sham formalism, but quite simple in the hydrodynamic\napproach. We show that for interactions between the clusters of same sizes,\n$C_{6}$ and $C_{8}$ sale as the sixth and the eighth power of the cluster\nradius rsepectively, and approach the respective classically predicted values\nfor the large size clusters.",
    "arxiv_id": "physics/0408087",
    "authors": [
      "Arup Banerjee",
      "Manoj K. Harbola"
    ],
    "categories": [
      "physics.atm-clus"
    ],
    "title": "Calculation of van der Walls coefficients of alkali metal clusters by   hydrodynamic approach to time-dependent density-functional theory",
    "url": "https://arxiv.org/abs/physics/0408087"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "cb3df162-f8c4-4faa-a7b4-72c9189dce2b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}