{
  "annotation_id": "d5afa20f-22f2-40c5-b55c-b12c88ae2901",
  "date_created": "2026-03-02T18:02:23.964000Z",
  "date_modified": "2026-03-02T18:02:23.964000Z",
  "file_hash": "3c6f999f08cf11a1f92ebc982b68426ccf27f018268cdb07e2b44dd114192c79",
  "private": false,
  "record": {
    "abstract": "We present a general argument showing that the temperature as well as other\nthermodynamical state variables can qualify as entanglement witnesses for\nspatial entanglement. This holds for a variety of systems and we exemplify our\nideas using a simple free non-interacting Bosonic gas. We find that\nentanglement can exist at arbitrarily high temperatures, provided that we can\nprobe smaller and smaller regions of space. We then discuss the relationship\nbetween the occurrence of Bose-Einstein condensation and our conditions for the\npresence of entanglement and compare the respective critical temperatures. We\nclose with a short discussion of the idea of seeing entanglement as a\nmacroscopic property in thermodynamical systems and its possible relation to\nphase transitions in general.",
    "arxiv_id": "quant-ph/0512181",
    "authors": [
      "Janet Anders",
      "Dagomir Kaszlikowski",
      "Christian Lunkes",
      "Toshio Ohshima",
      "Vlatko Vedral"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/8/8/140",
    "journal_ref": "New Journal of Physics 8 (2006) 140",
    "title": "Detecting entanglement with a thermometer",
    "url": "https://arxiv.org/abs/quant-ph/0512181"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4a6c0990-7f4d-495e-81a8-2e66b206cbd0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}