{
  "annotation_id": "f90468ad-ce47-43d4-b2dc-5f0282323f8c",
  "date_created": "2026-03-02T18:02:41.365000Z",
  "date_modified": "2026-03-02T18:02:41.365000Z",
  "file_hash": "5d3bebbe6c7e817a9baf773340783194e2eb956e9d3e767f3b992c876a947e0f",
  "private": false,
  "record": {
    "abstract": "We investigate a detector scheme designed to measure the arrival of a\nparticle at $x=0$ during a finite time interval. The detector consists of a two\nstate system which undergoes a transition from one state to the other when the\nparticle crosses $x=0$, and possesses the realistic feature that it is\neffectively irreversible as a result of being coupled to a large environment.\nThe probabilities for crossing or not crossing $x=0$ thereby derived coincide\nwith earlier phenomenologically proposed expressions involving a complex\npotential. The probabilities are compared with similar previously proposed\nexpressions involving sums over paths, and a connection with time operator\napproaches is also indicated.",
    "arxiv_id": "quant-ph/9805057",
    "authors": [
      "J. J. Halliwell"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1143/PTP.102.707",
    "journal_ref": "Prog.Theor.Phys. 102 (1999) 707-717",
    "title": "Arrival Times in Quantum Theory from an Irreversible Detector Model",
    "url": "https://arxiv.org/abs/quant-ph/9805057"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "bab41fbe-dd89-4ae8-be17-dd144eaca0cc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}