{
  "annotation_id": "f53c3032-47a4-49f5-ab69-1e283ee500b7",
  "date_created": "2026-03-02T18:02:23.788000Z",
  "date_modified": "2026-03-02T18:02:23.788000Z",
  "file_hash": "a11a57e3e6d36930b01efb6de23daf8b948414dbbeb410f670198693f32c3385",
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  "record": {
    "abstract": "We propose a technique to prepare coherent superpositions of two\nnondegenerate quantum states in a three-state ladder system, driven by two\nsimultaneous fields near resonance with an intermediate state. The technique,\nof potential application to enhancement of nonlinear processes, uses adiabatic\npassage assisted by dynamic Stark shifts induced by a third laser field. The\nmethod offers significant advantages over alternative techniques: (\\i) it does\nnot require laser pulses of specific shape and duration and (\\ii) it requires\nless intense fields than schemes based on two-photon excitation with\nnon-resonant intermediate states. We discuss possible experimental\nimplementation for enhancement of frequency conversion in mercury atoms.",
    "arxiv_id": "quant-ph/0601028",
    "authors": [
      "N. Sangouard",
      "L. P. Yatsenko",
      "B. W. Shore",
      "T. Halfmann"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.73.043415",
    "journal_ref": "Phys. Rev. A 73, 043415 (2006)",
    "title": "Preparation of nondegenerate coherent superpositions in a three-state   ladder system assisted by Stark Shifts",
    "url": "https://arxiv.org/abs/quant-ph/0601028"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "7f3e166c-5bfe-41fe-b63f-87d92e458d4a",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}