{
  "annotation_id": "a79c2d98-ddff-4d2a-8cb6-71dee498b457",
  "date_created": "2026-03-02T18:02:17.205000Z",
  "date_modified": "2026-03-02T18:02:17.205000Z",
  "file_hash": "c20603db7c8ce85889c75b87755fd3ab354a2ed8083271d515e3d63407ef5008",
  "private": false,
  "record": {
    "abstract": "We present a full quantum treatment of a five-level atomic system coupled to\ntwo quantum and two classical light fields. The two quantum fields undergo a\ncross-phase modulation induced by electro-magnetically induced transparency.\nThe performance of this configuration as a two-qubit quantum phase gate for\ntravelling single-photons is examined. A trade-off between the size of the\nconditional phase shift and the fidelity of the gate is found. Nonetheless, a\nsatisfactory gate performance is still found to be possible in the transient\nregime, corresponding to a fast gate operation.",
    "arxiv_id": "quant-ph/0507137",
    "authors": [
      "C. Ottaviani",
      "S. Rebic",
      "D. Vitali",
      "P. Tombesi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.010301",
    "journal_ref": "Phys. Rev. A 73, 010301(R) (2006)",
    "title": "Quantum Phase Gate Operation Based on Nonlinear Optics: Full Quantum   Analysis",
    "url": "https://arxiv.org/abs/quant-ph/0507137"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d51637b0-773c-436d-be6c-09489140998b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}