{
  "annotation_id": "a504d6bf-5f6e-474d-91a3-0d38e2b8abb1",
  "date_created": "2026-03-02T18:01:46.027000Z",
  "date_modified": "2026-03-02T18:01:46.027000Z",
  "file_hash": "f5cc6934bf5875f409d10cea8ede0f64380dc3ff1e23ded12a8a0c242cd86ecc",
  "private": false,
  "record": {
    "abstract": "The communication of directions using quantum states is a useful laboratory\ntest for some basic facts of quantum information. For a system of spin-1/2\nparticles there are different quantum states that can encode directions. This\ninformation can later be decoded by means of a generalized measurement. In this\ntalk we present the optimal strategies under different assumptions.",
    "arxiv_id": "quant-ph/0106155",
    "authors": [
      "E. Bagan",
      "M. Baig",
      "R. Munoz-Tapia"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Communicating a direction using spin states",
    "url": "https://arxiv.org/abs/quant-ph/0106155"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "efabe146-5614-4fb4-9a88-9f0498eb0d52",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}