{
  "annotation_id": "7cdf2e1c-d9fd-48ab-8fac-761a312df1ac",
  "date_created": "2026-03-02T18:01:49.542000Z",
  "date_modified": "2026-03-02T18:01:49.542000Z",
  "file_hash": "b6bc36504189250261399cb924d053bc0a96fca4bf16f13196070e5b93fa186d",
  "private": false,
  "record": {
    "abstract": "We investigate the collisional stability of magnetically trapped ultracold\nmolecules, taking into account the influence of magnetic fields. We compute\nelastic and spin-state-changing inelastic rate constants for collisions of the\nprototype molecule $^{17}$O$_2$ with a $^3$He buffer gas as a function of the\nmagnetic field and the translational collision energy. We find that\nspin-state-changing collisions are suppressed by Wigner\u0027s threshold laws as\nlong as the asymptotic Zeeman splitting between incident and final states does\nnot exceed the height of the centrifugal barrier in the exit channel. In\naddition, we propose a useful one-parameter fitting formula that describes the\nthreshold behavior of the inelastic rates as a function of the field and\ncollision energy. Results show a semi-quantitative agreement of this formula\nwith the full quantum calculations, and suggest useful applications also to\ndifferent systems. As an example, we predict the low-energy rate constants\nrelevant to evaporative cooling of molecular oxygen.",
    "arxiv_id": "quant-ph/0201048",
    "authors": [
      "Alessandro Volpi",
      "John L. Bohn"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.65.052712",
    "title": "Magnetic field effects in ultracold molecular collisions",
    "url": "https://arxiv.org/abs/quant-ph/0201048"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "1f9e928e-b01a-4c01-9472-6106f3523239",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}