{
  "annotation_id": "dd7db3c4-f134-4ff8-968d-25cba6e05e8b",
  "date_created": "2026-03-02T18:02:43.936000Z",
  "date_modified": "2026-03-02T18:02:43.936000Z",
  "file_hash": "41c5a93e55df1afc5d5c26e726542fc04435658a774ad6403a4e12005dba6614",
  "private": false,
  "record": {
    "abstract": "We study the dynamics of the relative phase between two Bose-Einstein\ncondensates coupled via collisions and via a Josephson-like coupling. We derive\nthe equations of the motion for the relative phase and the relative number\noperators from the second quantized Hamiltonian of the system using a quantum\nfield theoretical approach. We distinguish the cases in which the two\ncondensates are in the same trap or in two different traps and study the\ninfluence of this difference on the first order correlation function of atomic\nfields. In identical traps this function does not undergo dephasing. We\ncalculate the dephasing time for the case of different traps.",
    "arxiv_id": "quant-ph/9808017",
    "authors": [
      "Villain Pierre",
      "Lewenstein Maciej"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Dephasing of Josephson oscillations between two coupled Bose-Einstein   condensates",
    "url": "https://arxiv.org/abs/quant-ph/9808017"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "0d3a2db3-ebae-486a-92a1-d79963c8026d",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}