{
  "annotation_id": "1976c2ed-0325-4e1f-ae18-61f2320feced",
  "date_created": "2026-03-02T18:00:36.156000Z",
  "date_modified": "2026-03-02T18:00:36.156000Z",
  "file_hash": "45ae8e9361669a39bc2881708e9458f6e725cb5497b236f7f6aa76b1138c4910",
  "private": false,
  "record": {
    "abstract": "We report the demonstration of a sensitive absolute gravity gradiometer based\non light-pulse atom interference techniques. The gradiometer consists of two\nabsolute accelerometers operated in a differential mode. We report a\ndifferential acceleration sensitivity of 4e-9 g/Hz^(1/2) and an inferred\ndifferential acceleration accuracy of less than 1e-9 g. This corresponds to a\ngravity gradient sensitivity of 4 E/Hz^(1/2) [1 E = 1e-9 s^(-2)] and an\naccuracy of better than 1 E for a 10 m separation between accelerometers. We\ndemonstrate that the instrument can be used to detect nearby masses in a\nvibrationally noisy environment and characterize instrument sensitivity to\nspurious acceleration and rotation noise.",
    "arxiv_id": "physics/0105088",
    "authors": [
      "J. M. McGuirk",
      "G. T. Foster",
      "J. B. Fixler",
      "M. J. Snadden",
      "M. A. Kasevich"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevA.65.033608",
    "title": "Sensitive Absolute Gravity Gradiometry Using Atom Interferometry",
    "url": "https://arxiv.org/abs/physics/0105088"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "82068be3-eff1-414e-970f-c5f06c1414ea",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}