{
  "annotation_id": "b27513ed-c789-4ee6-9fb2-db384d3c0d30",
  "date_created": "2026-03-02T18:02:27.457000Z",
  "date_modified": "2026-03-02T18:02:27.457000Z",
  "file_hash": "7089346210897f243345ce732263834f049783431296eeb0be22ba9fbf96d4cc",
  "private": false,
  "record": {
    "abstract": "Decoherence induced by coupling a system with an environment may display\nuniversal features. Here we demostrate that when the coupling to the system\ndrives a quantum phase transition in the environment, the temporal decay of\nquantum coherences in the system is Gaussian with a width independent of the\nsystem-environment coupling strength. The existence of this effect opens the\nway for a new type of quantum simulation algorithm, where a single qubit is\nused to detect a quantum phase transition. We discuss possible implementations\nof such algorithm and we relate our results to available data on universal\ndecoherence in NMR echo experiments.",
    "arxiv_id": "quant-ph/0604136",
    "authors": [
      "Fernando Martin Cucchietti",
      "Sonia Fernandez-Vidal",
      "Juan Pablo Paz"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.75.032337",
    "journal_ref": "Phys. Rev. A 75, 032337 (2007)",
    "title": "Universal decoherence induced by an environmental quantum phase   transition",
    "url": "https://arxiv.org/abs/quant-ph/0604136"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "31f62fe2-0723-443f-9243-aff1eca88aea",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}