{
  "annotation_id": "d46afdca-372c-4126-82d8-65b5ed88687f",
  "date_created": "2026-03-02T18:02:23.619000Z",
  "date_modified": "2026-03-02T18:02:23.619000Z",
  "file_hash": "5df7c80c91d8882d65025b09052ec4b2d8d5640121ef941bae33720383f5c6a0",
  "private": false,
  "record": {
    "abstract": "We present a scheme for creating macroscopic superpositions of the direction\nof superfluid flow around a loop. Using the Bose-Hubbard model we study an\narray of Bose-Einstein condensates trapped in optical potentials and coupled to\none another to form a ring. By rotating the ring so that each particle acquires\non average half a quantum of superfluid flow, it is possible to create a\nmultiparticle superposition of all the particles rotating and all the particles\nstationary. Under certain conditions it is possible to scale up the number of\nparticles to form a macroscopic superposition. The simplicity of the model has\nallowed us to study macroscopic superpositions at an atomic level for different\nvariables. Here we concentrate on the tunnelling strength between the\npotentials. Further investigation remains important, because it could lead us\nto making an ultra-precise quantum-limited gyroscope.",
    "arxiv_id": "quant-ph/0602025",
    "authors": [
      "David W. Hallwood",
      "Jacob Dunningham",
      "Keith Burnett"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/1367-2630/8/9/180",
    "journal_ref": "New J. Phys. 8 (2006) 180",
    "title": "Macroscopic superpositions of superfluid flows",
    "url": "https://arxiv.org/abs/quant-ph/0602025"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "8f61c831-a9e6-40da-b723-91b5af5e3de0",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}