{
  "annotation_id": "13313e2a-d314-4fe1-a929-a41ef53a71d3",
  "date_created": "2026-03-02T18:00:32.254000Z",
  "date_modified": "2026-03-02T18:00:32.254000Z",
  "file_hash": "3cc5a220d9dc60b1a6d6fa3dffd7df5e0805275e43ed433e3b2c8fc34a78f87a",
  "private": false,
  "record": {
    "abstract": "Reciprocal space methods for solving Poisson\u0027s equation for finite charge\ndistributions are investigated. Improvements to previous proposals are\npresented, and their performance is compared in the context of a real-space\ndensity functional theory code. Two basic methodologies are followed:\ncalculation of correction terms, and imposition of a cut-off to the Coulomb\npotential. We conclude that these methods can be safely applied to finite or\naperiodic systems with a reasonable control of speed and accuracy.",
    "arxiv_id": "physics/0012024",
    "authors": [
      "Alberto Castro",
      "Angel Rubio",
      "M. J. Stott"
    ],
    "categories": [
      "physics.comp-ph"
    ],
    "title": "Solution of Poisson\u0027s equation for finite systems using plane wave   methods",
    "url": "https://arxiv.org/abs/physics/0012024"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "545c542e-34f8-4d60-83ea-01d471d727b1",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}