{
  "annotation_id": "ff40e3f6-cfd2-45c2-9af5-a94459143106",
  "date_created": "2026-03-02T18:01:45.566000Z",
  "date_modified": "2026-03-02T18:01:45.566000Z",
  "file_hash": "c87be4d99b5a648529811110783729918cde2016dd5782f2eba7ed33dd18a1b0",
  "private": false,
  "record": {
    "abstract": "We investigate quantum effects in pattern-formation for a degenerate optical\nparametric oscillator with walk-off. This device has a convective regime in\nwhich macroscopic patterns are both initiated and sustained by quantum noise.\nFamiliar methods based linearization about a pseudo-classical field fail in\nthis regime and new approaches are required. We employ a method in which the\npump field is treated as a $c$-number variable but is driven by the $c$-number\nrepresentation of the quantum sub-harmonic signal field. This allows us to\ninclude the effects of the fluctuations in the signal on the pump, which in\nturn act back on the signal. We find that the non-classical effects, in the\nform of squeezing, survive just above the threshold of the convective regime.\nFurther above threshold the macroscopic quantum noise suppresses these effects.",
    "arxiv_id": "quant-ph/0108030",
    "authors": [
      "Roberta Zambrini",
      "Stephen M. Barnett",
      "Pere Colet",
      "Maxi San Miguel"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.65.023813",
    "journal_ref": "Phys. Rev. A 65, 023813 (2002).",
    "title": "Macroscopic quantum fluctuations in noise-sustained optical patterns",
    "url": "https://arxiv.org/abs/quant-ph/0108030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "5c8b9a6e-c2f0-4504-9bfd-90b14f24a4ff",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}