{
  "annotation_id": "687e442b-ffb9-4784-b44f-d860c39f4b51",
  "date_created": "2026-03-02T18:01:00.478000Z",
  "date_modified": "2026-03-02T18:01:00.478000Z",
  "file_hash": "bf186902f0728b8aee1cc0b82d93f0974eefc50fac527477f216a22e1d61950a",
  "private": false,
  "record": {
    "abstract": "We study the nonlinear evolution of the resistive tearing mode in slab\ngeometry in two dimensions. We show that, in the strongly driven regime (large\nDelta\u0027), a collapse of the X-point occurs once the island width exceeds a\ncertain critical value ~1/Delta\u0027. A current sheet is formed and the\nreconnection is exponential in time with a growth rate ~eta^1/2, where eta is\nthe resistivity. If the aspect ratio of the current sheet is sufficiently\nlarge, the sheet can itself become tearing-mode unstable, giving rise to\nsecondary islands, which then coalesce with the original island. The saturated\nstate depends on the value of Delta\u0027. For small Delta\u0027, the saturation\namplitude is ~Delta\u0027 and quantitatively agrees with the theoretical prediction.\nIf Delta\u0027 is large enough for the X-point collapse to have occured, the\nsaturation amplitude increases noticeably and becomes independent of Delta\u0027.",
    "arxiv_id": "physics/0507206",
    "authors": [
      "N. F. Loureiro",
      "S. C. Cowley",
      "W. D. Dorland",
      "M. G. Haines",
      "A. A. Schekochihin"
    ],
    "categories": [
      "physics.plasm-ph",
      "astro-ph",
      "physics.space-ph"
    ],
    "doi": "10.1103/PhysRevLett.95.235003",
    "journal_ref": "Phys.Rev.Lett.95:235003,2005",
    "title": "X-point collapse and saturation in the nonlinear tearing mode   reconnection",
    "url": "https://arxiv.org/abs/physics/0507206"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6981aea9-c325-4b3a-b17e-73d0791a59d7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}