{
  "annotation_id": "e4365483-5481-4552-b106-9dcecd754f75",
  "date_created": "2026-03-02T18:00:39.052000Z",
  "date_modified": "2026-03-02T18:00:39.052000Z",
  "file_hash": "1814996bfddcfe7dc3d498f84096766cc73b6c5ba4a1beef588ae85c40311200",
  "private": false,
  "record": {
    "abstract": "Dynamical roughening of interfaces has received much attention in recent\nyears. However, experiments have been restricted to one dimensional (1d)\nsystems. Moreover, theoretical studies of the two dimensional (2d) case have\nbeen highly inconclusive. Here we introduce an experimental 2d system, with\nwhich the theories can be tested. As is shown, the surface of a 2d pile of rice\nshows roughening behaviour in both space and time, with a roughness exponent\n$\\alpha_{2d}$ = 0.39(3) and a growth exponent $\\beta_{2d}$ = 0.27(3).",
    "arxiv_id": "physics/0205015",
    "authors": [
      "C. M. Aegerter",
      "R. Gunther",
      "R. J. Wijngaarden"
    ],
    "categories": [
      "physics.data-an"
    ],
    "title": "A two-dimensional rough surface: Experiments on a pile of rice",
    "url": "https://arxiv.org/abs/physics/0205015"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "4082584e-5535-4ec0-8305-c4011975a2f0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}