{
  "annotation_id": "6b85ef75-e706-40db-9e03-6b45374b3270",
  "date_created": "2026-03-02T18:02:44.278000Z",
  "date_modified": "2026-03-02T18:02:44.278000Z",
  "file_hash": "40fe4ebb444f5cce167c1663cd4f8cbd515731884cf4718b8464de868997753a",
  "private": false,
  "record": {
    "abstract": "The possibility of determining the state of a quantum system after a\ncontinuous measurement of position is discussed in the framework of quantum\ntrajectory theory. Initial lack of knowledge of the system and external noises\nare accounted for by considering the evolution of conditioned density matrices\nunder a stochastic master equation. It is shown that after a finite time the\nstate of the system is a pure state and can be inferred from the measurement\nrecord alone. The relation to emerging possibilities for the continuous\nexperimental observation of single quanta, as for example in cavity quantum\nelectrodynamics, is discussed.",
    "arxiv_id": "quant-ph/9903030",
    "authors": [
      "A. C. Doherty",
      "S. M. Tan",
      "A. S. Parkins",
      "D. F. Walls"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.60.2380",
    "title": "State determination in continuous measurement",
    "url": "https://arxiv.org/abs/quant-ph/9903030"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "a0c92679-b21e-40a4-a720-fd456c556179",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}