{
  "annotation_id": "0dca8c7e-b19b-4530-8fdd-67baf2f4e30a",
  "date_created": "2026-03-02T18:02:27.620000Z",
  "date_modified": "2026-03-02T18:02:27.620000Z",
  "file_hash": "41a6309f89806935292ff1649bd578bef93c09c2cc3a32737829e689f36dc704",
  "private": false,
  "record": {
    "abstract": "The unitary time evolution of a critical quantum spin chain with an impurity\nis calculated, and the entanglement evolution is shown. Moreover, we show that\nthe reduced density matrix of a part of the chain evolves such that the\nfidelity of its spectrum is very high with respect to a state in thermal\nequilibrium. Hence, a thermal state occurs through unitary time evolution in a\nsimple spin chain with impurity.",
    "arxiv_id": "quant-ph/0606216",
    "authors": [
      "Stein Olav Skr\u00f8vseth"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1209/epl/i2006-10388-9",
    "journal_ref": "Europhys. Lett. 76, 1179 (2006)",
    "title": "Thermalization through unitary evolution of pure states",
    "url": "https://arxiv.org/abs/quant-ph/0606216"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1a3902d2-c5fc-4c7b-ac3b-d536bec546f0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}