{
  "annotation_id": "51145540-d23b-44cb-833e-1bf7c327664c",
  "date_created": "2026-03-02T18:00:53.783000Z",
  "date_modified": "2026-03-02T18:00:53.783000Z",
  "file_hash": "fd0626d3bfd48098235900e522b46ed7b3db7d1045538a1e28e8efa5e82b6917",
  "private": false,
  "record": {
    "abstract": "The decay rate $\\gam$ of an excited dipole molecule inside a waveguide is\nevaluated for the strongly coupled matter-field case near a cutoff frequency\n$\\ome_c$ without using perturbation analysis. Due to the singularity in the\ndensity of photon states at the cutoff frequency, we find that $\\gam$ depends\nnon-analytically on the coupling constant $\\ggg$ as $\\ggg^{4/3}$. In contrast\nto the ordinary evaluation of $\\gam$ which relies on the Fermi golden rule\n(itself based on perturbation analysis), $\\gam$ has an upper bound and does not\ndiverge at $\\ome_c$ even if we assume perfect conductance in the waveguide\nwalls. As a result, again in contrast to the statement found in the literature,\nthe speed of emitted light from the molecule does not vanish at $\\ome_c$ and is\nproportional to $c\\ggg^{2/3}$ which is on the order of $10^3 \\sim 10^4$ m/s for\ntypical dipole molecules.",
    "arxiv_id": "physics/0409122",
    "authors": [
      "T. Petrosky",
      "Chu-Ong Ting",
      "Sterling Garmon"
    ],
    "categories": [
      "physics.atom-ph"
    ],
    "doi": "10.1103/PhysRevLett.94.043601",
    "title": "Strongly Coupled Matter-Field and Non-Analytic Decay Rate of Dipole   Molecules in a Waveguide",
    "url": "https://arxiv.org/abs/physics/0409122"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "215d79a8-ea1f-4a53-a240-2e22126a8afe",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}