{
  "annotation_id": "7e4e2704-e517-4c6d-893d-c46aadabc9f3",
  "date_created": "2026-03-02T18:00:50.364000Z",
  "date_modified": "2026-03-02T18:00:50.364000Z",
  "file_hash": "27e22015be566439ab397a6c6bce16f1aeb678688352279687f9037461e5b10a",
  "private": false,
  "record": {
    "abstract": "Differential rotation occurs in conducting flows in accretion disks and\nplanetary cores. In such systems, the magnetorotational instability can arise\nfrom coupling Lorentz and centrifugal forces to cause large radial angular\nmomentum fluxes. We present the first experimental observation of the\nmagnetorotational instability. Our system consists of liquid sodium between\ndifferentially rotating spheres, with an imposed coaxial magnetic field. We\ncharacterize the observed patterns, dynamics and torque increases, and\nestablish that this instability can occur from a hydrodynamic turbulent\nbackground.",
    "arxiv_id": "physics/0402125",
    "authors": [
      "Daniel R. Sisan",
      "Nicolas Mujica",
      "W. Andrew Tillotson",
      "Yi-Min Huang",
      "William Dorland",
      "Adil B. Hassam",
      "Thomas M. Antonsen",
      "Daniel P. Lathrop"
    ],
    "categories": [
      "physics.flu-dyn",
      "astro-ph",
      "physics.geo-ph"
    ],
    "doi": "10.1103/PhysRevLett.93.114502",
    "journal_ref": "Phys.Rev.Lett. 93 (2004) 114502",
    "title": "Experimental observation and characterization of the magnetorotational   instability",
    "url": "https://arxiv.org/abs/physics/0402125"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0bf606c6-7c8f-43e9-9052-76022a91dea6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}