{
  "annotation_id": "5503ac20-b89a-41fc-b24d-0923fea2c5c9",
  "date_created": "2026-03-02T18:00:39.220000Z",
  "date_modified": "2026-03-02T18:00:39.220000Z",
  "file_hash": "b6ea9c8baacfe5891abab3aa3c8d64e370d2de0fd1ecb98df2dd7eed845822a6",
  "private": false,
  "record": {
    "abstract": "For studying the group theoretical classification of the solutions of the\ndensity functional theory in relativistic framework, we propose quantum\nelectrodynamical density-matrix functional theory (QED-DMFT). QED-DMFT gives\nthe energy as a functional of a local one-body $4\\times4$ matrix $Q(x)\\equiv\n-\u003c\\psi(x)\\bar{\\psi}(x)\u003e$, where $\\psi$ and $\\bar{\\psi}$ are 4-component Dirac\nfield and its Dirac conjugate, respectively. We examine some characters of\nQED-DMFT. After these preparations, by using Q(x), we classify the solutions of\nQED-DMFT under O(3) rotation, time reversal and spatial inversion. The behavior\nof Q(x) under nonrelativistic and ultrarelativistic limits are also presented.\nFinally, we give plans for several extensions and applications of QED-DMFT.",
    "arxiv_id": "physics/0112088",
    "authors": [
      "Tadafumi Ohsaku",
      "Shusuke Yamanaka",
      "Daisuke Yamaki",
      "Kizashi Yamaguchi"
    ],
    "categories": [
      "physics.chem-ph",
      "hep-ph",
      "hep-th",
      "nucl-th",
      "physics.atom-ph"
    ],
    "journal_ref": "Int.J.Quant.Chem. 90 (2002) 273",
    "title": "Quantum Electrodynamical Density-matrix Functional Theory and   Group-theoretical Consideration of its Solution",
    "url": "https://arxiv.org/abs/physics/0112088"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "08a974b3-fc12-45e9-97a2-912e5e3735d5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}