{
  "annotation_id": "0263d1a8-c435-4b4d-b19f-34f28c2fdb07",
  "date_created": "2026-03-02T18:01:42.369000Z",
  "date_modified": "2026-03-02T18:01:42.369000Z",
  "file_hash": "52f17c27a5d520969546a13794f1d49ee4f219072a3046530d2cd241c5972093",
  "private": false,
  "record": {
    "abstract": "A superconducting ring has different sectors of states corresponding to\ndifferent values of the trapped magnetic flux; this multitude of states can be\nused for quantum information storage. If a current supporting a nonzero flux is\nset up in the ring, fluctuations of electromagnetic field will be able to\n``detect\u0027\u0027 that current and thus cause a loss of quantum coherence. We estimate\nthe decoherence exponent for a ring of a round type-II wire and find that it\ncontains a macroscopic suppression factor $(\\delta / R_{1})^{2}$, where $R_{1}$\nis the radius of the wire, and $\\delta$ is the London penetration depth. We\npresent some encouraging numerical estimates based on this result.",
    "arxiv_id": "quant-ph/0010072",
    "authors": [
      "S. Khlebnikov"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.supr-con"
    ],
    "title": "Decoherence in a superconducting ring",
    "url": "https://arxiv.org/abs/quant-ph/0010072"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "c312d68d-9873-44fe-a953-be05d29dfa5a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}