{
  "annotation_id": "b43fd4fd-6086-4954-b098-e51525b34137",
  "date_created": "2026-03-02T18:02:27.506000Z",
  "date_modified": "2026-03-02T18:02:27.506000Z",
  "file_hash": "9ab44162e58962e61cb03dcdbfaeba1187455b1514d84b47351a8ebdfea731cf",
  "private": false,
  "record": {
    "abstract": "We demonstrate a fast, robust and non-destructive protocol for quantum state\nestimation based on continuous weak measurement in the presence of a controlled\ndynamical evolution. Our experiment uses optically probed atomic spins as a\ntestbed, and successfully reconstructs a range of trial states with fidelities\nof ~90%. The procedure holds promise as a practical diagnostic tool for the\nstudy of complex quantum dynamics, the testing of quantum hardware, and as a\nstarting point for new types of quantum feedback control.",
    "arxiv_id": "quant-ph/0606115",
    "authors": [
      "Greg A. Smith",
      "Andrew Silberfarb",
      "Ivan H. Deutsch",
      "Poul S. Jessen"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.97.180403",
    "title": "Efficient Quantum State Estimation by Continuous Weak Measurement and   Dynamical Control",
    "url": "https://arxiv.org/abs/quant-ph/0606115"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "16dd4540-23db-4782-9a75-d0e20c909f15",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}