{
  "annotation_id": "d6b25eaa-a1b6-4161-9778-144bb26255a5",
  "date_created": "2026-03-02T18:02:34.499000Z",
  "date_modified": "2026-03-02T18:02:34.499000Z",
  "file_hash": "2c2b6cc960af06790b3e25edf25b0456d3288a427dbdf95efb03e77c65c34f42",
  "private": false,
  "record": {
    "abstract": "The weak nonlinear Kerr interaction between single photons and intense laser\nfields has been recently proposed as a basis for distributed optics-based\nsolutions to few-qubit applications in quantum communication and computation.\nHere, we analyze the above Kerr interaction by employing a continuous-time\nmulti-mode model for the input/output fields to/from the nonlinear medium. In\ncontrast to previous single-mode treatments of this problem, our analysis takes\ninto account the full temporal content of the free-field input beams as well as\nthe non-instantaneous response of the medium. The main implication of this\nmodel, in which the cross-Kerr phase shift on one input is proportional to the\nphoton flux of the other input, is the existence of phase noise terms at the\noutput. We show that these phase noise terms will preclude satisfactory\nperformance of the parity gate proposed by Munro, Nemoto, and Spiller [New J.\nPhys. 7, 137 (2005)].",
    "arxiv_id": "quant-ph/0612086",
    "authors": [
      "Jeffrey H. Shapiro",
      "Mohsen Razavi"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/9/1/016",
    "title": "Continuous-time cross-phase modulation and quantum computation",
    "url": "https://arxiv.org/abs/quant-ph/0612086"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ad1e9f57-d50c-4e4d-9795-6ccd9e4dedae",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}