{
  "annotation_id": "a468215b-9c91-4864-8cbf-5c43c74f0ea5",
  "date_created": "2026-03-02T18:02:23.896000Z",
  "date_modified": "2026-03-02T18:02:23.896000Z",
  "file_hash": "1c770d591d2ce0942630eb92c1388409e56d1a6b6dc66d98a5024cd6a0477f5e",
  "private": false,
  "record": {
    "abstract": "We revisit a scenario of continuous quantum error detection proposed by Ahn,\nDoherty and Landahl [Phys. Rev. A 65, 042301 (2002)] and construct optimal\nfilters for tracking accumulative errors. These filters turn out to be of a\ncanonical form from hybrid control theory; we numerically assess their\nperformance for the bit-flip and five-qubit codes. We show that a tight upper\nbound on the stochastic decay of encoded fidelity can be computed from the\nmeasurement records. Our results provide an informative case study in\ndecoherence suppression with finite-strength measurement.",
    "arxiv_id": "quant-ph/0511221",
    "authors": [
      "Ramon van Handel",
      "Hideo Mabuchi"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Optimal error tracking via quantum coding and continuous syndrome   measurement",
    "url": "https://arxiv.org/abs/quant-ph/0511221"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e680cc3a-b26f-4767-8ca4-8c27ee3013fc",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}