{
  "annotation_id": "61c15ee3-4c87-4e84-86d3-293e113aabd1",
  "date_created": "2026-03-02T18:01:42.582000Z",
  "date_modified": "2026-03-02T18:01:42.582000Z",
  "file_hash": "50f418c6f568c077c440ff7b10b517dedba0b0da08e03a51dfdbebf9ec1fae72",
  "private": false,
  "record": {
    "abstract": "We report the first observation of the Quantum Zeno and Anti-Zeno effects in\nan unstable system. Cold sodium atoms are trapped in a far-detuned standing\nwave of light that is accelerated for a controlled duration. For a large\nacceleration the atoms can escape the trapping potential via tunneling.\nInitially the number of trapped atoms shows strong non-exponential decay\nfeatures, evolving into the characteristic exponential decay behavior. We\nrepeatedly measure the number of atoms remaining trapped during the initial\nperiod of non-exponential decay. Depending on the frequency of measurements we\nobserve a decay that is suppressed or enhanced as compared to the unperturbed\nsystem.",
    "arxiv_id": "quant-ph/0104035",
    "authors": [
      "M. C. Fischer",
      "B. Gutierrez-Medina",
      "M. G. Raizen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.87.040402",
    "title": "Observation of the Quantum Zeno and Anti-Zeno effects in an unstable   system",
    "url": "https://arxiv.org/abs/quant-ph/0104035"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b984c35e-fed1-4dc5-b3d3-ffb804e0b3b6",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}