{
  "annotation_id": "f961d639-ebc9-4362-a39c-7e638ebd1ed0",
  "date_created": "2026-03-02T18:02:43.941000Z",
  "date_modified": "2026-03-02T18:02:43.941000Z",
  "file_hash": "eee46a666d2ac40095dac460999aca1abf8c0e16a6d1ce2242cce4a741b21db1",
  "private": false,
  "record": {
    "abstract": "We consider a continuous measurement of a two-level system (double-dot) by\nweakly coupled detector (tunnel point contact nearby). While usual treatment\nleads to the gradual system decoherence due to the measurement, we show that\nthe knowledge of the measurement result can restore the pure wavefunction at\nany time (this can be experimentally verified). The formalism allows to write a\nsimple Langevin equation for the random evolution of the system density matrix\nwhich is reflected and caused by the stochastic detector output. Gradual\nwavefunction ``collapse\u0027\u0027 and quantum Zeno effect are naturally described by\nthe equation.",
    "arxiv_id": "quant-ph/9808026",
    "authors": [
      "Alexander N. Korotkov"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.mes-hall"
    ],
    "title": "Continuous quantum measurement with particular output: pure wavefunction   evolution instead of decoherence",
    "url": "https://arxiv.org/abs/quant-ph/9808026"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d538ffb9-c828-43b2-970c-d9ea0bc4f014",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}