{
  "annotation_id": "f20dd336-8566-4953-b1a2-2a3e831579e5",
  "date_created": "2026-03-02T18:02:33.702000Z",
  "date_modified": "2026-03-02T18:02:33.702000Z",
  "file_hash": "18245d53281e43adfb0bd8954f1ba6bf8ff043cd38f4d83d7ce44223d835e6c9",
  "private": false,
  "record": {
    "abstract": "Using the thermal Green\u0027s function approach we propose a general method to\ninvestigate entanglement of the vacuum state or thermal ground states in an\narbitrary dimensional space-time. As an application we show quantum\nseparability of the massive thermal scalar field vacuum in the 1+1 dimensional\ncylindrical space-time. Separability is demonstrated using the positive partial\ntranspose criterion for effective two-mode Gaussian states of collective\noperators. In this case, for all mass and temperature values entanglement is\nabsent between the collective operators.",
    "arxiv_id": "quant-ph/0702264",
    "authors": [
      "Jae-Weon Lee",
      "Jaewan Kim",
      "Taeseung Choi"
    ],
    "categories": [
      "quant-ph",
      "hep-th"
    ],
    "title": "Entanglement of thermal scalar fields in a compact space space",
    "url": "https://arxiv.org/abs/quant-ph/0702264"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ed4a1a52-2921-4ccc-a648-c1b80d98ad8e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}