{
  "annotation_id": "c828404b-4d20-4ae0-9759-a51cc5dab501",
  "date_created": "2026-03-02T18:02:23.962000Z",
  "date_modified": "2026-03-02T18:02:23.962000Z",
  "file_hash": "a1d7e0bf3f6f2a275401e531ba71f5994641d9c6f84c89d20bd5eb4cf625bfc9",
  "private": false,
  "record": {
    "abstract": "The von Neumann interaction between a particle and an apparatus has been\nconsidered in the measurement of the position of a particle when the\ninteraction lasts for a finite amount of time. When the measurement has finite\nduration, both the motion of the pointer and the particle influence the result\nof the measurement. Provided that the particle is in an eigenstate of its\nposition at the start of the measurement, the pointer will indicate the\narithmetic average between the initial and final position of the particle.\nFurthermore, the probability that the pointer will indicate a given average\nvalue is equal to the transition probability for the undisturbed particle to\nexperience the change in position. If the initial state of the pointer is a\nnarrow wavepacket, then for any initial state of the particle, the measurement\nyields, approximately, the undisturbed probability distribution for the\nposition of the particle at the end of the measurement.",
    "arxiv_id": "quant-ph/0512160",
    "authors": [
      "Francesc S. Roig"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.042106",
    "title": "Time Extended Measurement of the Position of a Particle",
    "url": "https://arxiv.org/abs/quant-ph/0512160"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b7800f8f-aa19-4aaa-af17-99f34c79aadb",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}