{
  "annotation_id": "9d344201-bcad-41b0-a504-2ce51f18798b",
  "date_created": "2026-03-02T18:02:33.510000Z",
  "date_modified": "2026-03-02T18:02:33.510000Z",
  "file_hash": "16cc753414f6f7a44eb257da046caa00844afd23da6494d9f49151ee3abae816",
  "private": false,
  "record": {
    "abstract": "Entanglement are the non-local correlations permitted by quantum theory,\nbelieved to play a fundamental role in a quantum computer. We have investigated\nthese correlations in a number of theoretical models for condensed matter\nsystems. Such systems are likely candidates for quantum computing, and\nexperimentally feasible for instance as superconducting qubits. At quantum\ncritical points the ground state of these systems is very complicated, and the\nentanglement is usually larger than at non-critical points. This entanglement\ncan be used to identify the critical points through what we denote the\nentanglement signature, even for very small systems. From another perspective,\nit seems that the entanglement is an essential tool to find an unknown ground\nstate, since this gives rise to a simple decomposition of the state.",
    "arxiv_id": "quant-ph/0612133",
    "authors": [
      "Stein Olav Skr\u00f8vseth"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Entanglement and its applications in systems with many degrees of   freedom",
    "url": "https://arxiv.org/abs/quant-ph/0612133"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "d84af3d1-f212-476d-9f0d-19fe1de59da7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}