{
  "annotation_id": "7a3c1d05-9952-4369-b593-fb8912697528",
  "date_created": "2026-03-02T18:02:10.043000Z",
  "date_modified": "2026-03-02T18:02:10.043000Z",
  "file_hash": "dfa108795399d128f37504caddfa75ac7779002507244302448a6f56c1856562",
  "private": false,
  "record": {
    "abstract": "The information in quantum computers is often stored in identical two-level\nsystems (spins or pseudo-spins) that are separated by a distance shorter than\nthe characteristic wavelength of a reservoir which is responsible for\ndecoherence. In such a case, the collective spin-reservoir interaction, rather\nthan an individual spin-reservoir interaction, may determine the decoherence\ncharacteristics. We use computational basis states, symmetrized spin states and\nspin coherent states to study collective decoherence in the implementation of\nvarious quantum algorithms. A simple method of implementing quantum algorithms\nusing stable subradiant states and avoiding unstable Dicke\u0027s superradiant\nstates and Schrodinger\u0027s cat states is proposed.",
    "arxiv_id": "quant-ph/0408162",
    "authors": [
      "Shoko Utsunomiya",
      "Cyrus P. Master",
      "Yoshihisa Yamamoto"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Algorithm-Based Analysis of Collective Decoherence in Quantum   Computation",
    "url": "https://arxiv.org/abs/quant-ph/0408162"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "600b22c4-a3e8-4f02-97ec-dce1a88445db",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}