{
  "annotation_id": "1353a468-2934-4296-a170-7f37e547b53f",
  "date_created": "2026-03-02T18:02:31.099000Z",
  "date_modified": "2026-03-02T18:02:31.099000Z",
  "file_hash": "ebed512d6713ec1b10f9cc82ef823e25210f9936b2a65da727c4c902a36c66ab",
  "private": false,
  "record": {
    "abstract": "Coherence properties of Bose-Einstein condensates offer the potential for\nimproved interferometric phase contrast. However, decoherence effects due to\nthe mean-field interaction shorten the coherence time, thus limiting potential\nsensitivity. In this work, we demonstrate increased coherence times with number\nsqueezed states in an optical lattice using the decay of Bloch oscillations to\nprobe the coherence time. We extend coherence times by a factor of 2 over those\nexpected with coherent state BEC interferometry. We observe quantitative\nagreement with theory both for the degree of initial number squeezing as well\nas for prolonged coherence times.",
    "arxiv_id": "quant-ph/0609009",
    "authors": [
      "Wei Li",
      "Ari K. Tuchman",
      "Hui-Chun Chien",
      "Mark A. Kasevich"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.98.040402",
    "title": "Extended Coherence Time with Atom-Number Squeezed Sources",
    "url": "https://arxiv.org/abs/quant-ph/0609009"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2701ca05-9d4f-42f9-af98-714dd35a9035",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}