{
  "annotation_id": "d1b1b777-765e-429c-a249-8989ff5255a2",
  "date_created": "2026-03-02T18:02:31.151000Z",
  "date_modified": "2026-03-02T18:02:31.151000Z",
  "file_hash": "6c7c1bc192a7b71769f8f374f942de6c521bf2f85a211185eb8df3ef3667a51e",
  "private": false,
  "record": {
    "abstract": "We give a simple example of the tight connection between entanglement and\ncoherence for pure bipartite systems showing the double role played by\nentanglement; it allows for the creation of superpositions of macroscopic\nobjects but at the same time makes subsystems lose their quantum mechanical\ncoherence. For this we study the time evolution of the spin coherence in the\nStern-Gerlach (SG) experiment. We also show that, contrary to the naive\nintuition, the spin coherence is lost before the two beams become separated in\nthe spatial coordinates.",
    "arxiv_id": "quant-ph/0608192",
    "authors": [
      "Thiago R. de Oliveira",
      "A. O. Caldeira"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Coherence and Entanglement in a Stern-Gerlach experiment",
    "url": "https://arxiv.org/abs/quant-ph/0608192"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "fba3e0e5-15bf-4529-89d4-3bd598c84248",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}