{
  "annotation_id": "02d3cd0d-a5e6-4535-99fb-7b46f04ce970",
  "date_created": "2026-03-02T18:02:34.645000Z",
  "date_modified": "2026-03-02T18:02:34.645000Z",
  "file_hash": "4dbd9895d3f767dee9f7742b679c7601003bdce21d87e881baaadbb58e8b22d2",
  "private": false,
  "record": {
    "abstract": "We discuss the laser theory for a single-mode laser with nonlinear gain. We\nfocus in particular on a micromaser which is pumped with a dilute beam of\nexcited atoms crossing the laser cavity. In the weak-coupling regime, an\nexpansion in the coupling strength is developed that preserves the Lindblad\nform of the master equation, securing the positivity of the density matrix.\nThis expansion breaks rapidly down above threshold. This can be improved with\nan alternative approach, not restricted to weak coupling: the Lindblad\noperators are expanded in orthogonal polynomials adapted to the probability\ndistribution for the atom-laser interaction time. Results for the photon\nstatistics and the laser linewidth illustrate the theory.",
    "arxiv_id": "quant-ph/0703094",
    "authors": [
      "C. Henkel"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0953-4075/40/12/012",
    "journal_ref": "J. Phys. B: At. Mol. Opt. Phys. 40 (2007) 2359-71",
    "title": "Laser theory in manifest Lindblad form",
    "url": "https://arxiv.org/abs/quant-ph/0703094"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "3b7f1969-ca5b-4cb7-a43e-fa8f0745c43f",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}