{
  "annotation_id": "1c2972fe-5e00-45ff-8151-e4dafbebf17e",
  "date_created": "2026-03-02T18:02:24.079000Z",
  "date_modified": "2026-03-02T18:02:24.079000Z",
  "file_hash": "94239b4946af0b7d866bfd7d89d24df73d1264a1925fb400281daabc4d8e9227",
  "private": false,
  "record": {
    "abstract": "We demonstrate a universal physical mechanism to probe the macroscopic\nquantum phase transition based on circuit QED architecture. We found that, with\ncertain parameters, the Josephson junction qubit array behaves as an\nantiferromagnetic Ising model in transverse field and the coupled transmission\nline resonator serves as a bosonic quantum probe. Our investigation shows that,\nat the critical point, the drastic broadening of the spectrum of the probe\nindicates the quantum phase transition.",
    "arxiv_id": "quant-ph/0603014",
    "authors": [
      "Y. D. Wang",
      "Fei Xue",
      "C. P. Sun"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.supr-con"
    ],
    "doi": "10.1103/PhysRevB.76.174519",
    "title": "Probing Quantum Phase Transition in Macroscopic Qubit Array via circuit   QED architecture",
    "url": "https://arxiv.org/abs/quant-ph/0603014"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "6a08a632-df49-487d-ac7b-362b38afe57e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}