{
  "annotation_id": "9ebfd7cc-109d-4f97-825c-cb728ec4de5a",
  "date_created": "2026-03-02T18:02:24.060000Z",
  "date_modified": "2026-03-02T18:02:24.060000Z",
  "file_hash": "58f2dc71a7030773d56128597502f1ab8a4e5c5aab0e8bce7820e3fbfc88e7d0",
  "private": false,
  "record": {
    "abstract": "We investigate steady state entanglement in an open quantum system,\nspecifically a single atom in a driven optical cavity with cavity loss and\nspontaneous emission. The system reaches a steady pure state when driven very\nweakly. Under these conditions, there is an optimal value for atom-field\ncoupling to maximize entanglement, as larger coupling favors a loss port due to\nthe cavity enhanced spontaneous emission. We address ways to implement\nmeasurements of entanglement witnesses and find that normalized\ncross-correlation functions are indicators of the entanglement in the system.\nThe magnitude of the equal time intensity-field cross correlation between the\ntransmitted field of the cavity and the fluorescence intensity is proportional\nto the concurrence for weak driving fields.",
    "arxiv_id": "quant-ph/0601208",
    "authors": [
      "P. R. Rice",
      "J. Gea-Banacloche",
      "M. L. Terraciano",
      "D. L. Freimund",
      "L. A. Orozco"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1364/OE.14.004514",
    "journal_ref": "Optics Express, Vol. 14, Issue 10, pp. 4514-4524 (May 2006)",
    "title": "Steady State Entanglement in Cavity QED",
    "url": "https://arxiv.org/abs/quant-ph/0601208"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "69608ad4-83fd-4680-a6c6-00ae0afa3e36",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}