{
  "annotation_id": "0ee54490-1a55-4f00-bb26-26f4e499a222",
  "date_created": "2026-03-02T18:02:19.354000Z",
  "date_modified": "2026-03-02T18:02:19.354000Z",
  "file_hash": "382d0dacaaa4fdb7d759dbd6824ffffd1180babc083d983174af34cc9e01dde1",
  "private": false,
  "record": {
    "abstract": "Noise correlations, such as those observable in the time of flight images of\na released cloud, are calculated for hard-core bosonic (HCB) atoms. We find\nthat the standard mapping of HCB systems onto spin-1/2 XY models fails in\napplication to computation of noise correlations. This is due to the\ncontribution of multiply occupied virtual states to noise correlations in\nbosonic systems. Such states do not exist in spin models. We use these\ncorrelations to explore quantum coherence of the ground states and re-address\nthe relationship between the peaks present in noise correlation and the Mott\nphase. Our analysis points to distinctive new experimental signatures of the\nMott phase. The importance of these correlations is illustrated in an example\nof a quasiperiodic potential that exhibits a localization transition. In this\ncase, in contrast to the momentum distribution, the noise correlations reveal\nthe presence of quasiperiodic order in the localized phase.",
    "arxiv_id": "quant-ph/0507153",
    "authors": [
      "Ana Maria Rey",
      "Indubala I Satija",
      "Charles W Clark"
    ],
    "categories": [
      "quant-ph",
      "cond-mat.str-el",
      "nlin.PS"
    ],
    "title": "Noise Correlations and Quantum Coherence in Hard-core Bosons in   One-dimensional Lattices",
    "url": "https://arxiv.org/abs/quant-ph/0507153"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "faf57e31-c62a-41a8-8eb0-40929af0a16b",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}