{
  "annotation_id": "0e26e9ce-2434-47c3-b453-779cb2c79de9",
  "date_created": "2026-03-02T18:02:37.252000Z",
  "date_modified": "2026-03-02T18:02:37.252000Z",
  "file_hash": "e72eac026fbc1c7656bd7643c0ff4ed1b242cdc7537d1f77e1efd52d291ee051",
  "private": false,
  "record": {
    "abstract": "We have observed the ultraslow propagation of matched pulses in nondegenerate\nfour-wave mixing in a hot atomic vapor. Probe pulses as short as 70 ns can be\ndelayed by a tunable time of up to 40 ns with little broadening or distortion.\nDuring the propagation, a probe pulse is amplified and generates a conjugate\npulse which is faster and separates from the probe pulse before getting locked\nto it at a fixed delay. The precise timing of this process allows us to\ndetermine the key coefficients of the susceptibility tensor. The presence of\ngain in this system makes this system very interesting in the context of\nall-optical information processing.",
    "arxiv_id": "quant-ph/0703173",
    "authors": [
      "V. Boyer",
      "C. F. McCormick",
      "E. Arimondo",
      "P. D. Lett"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.99.143601",
    "title": "Ultraslow propagation of matched pulses by four-wave mixing in an atomic   vapor",
    "url": "https://arxiv.org/abs/quant-ph/0703173"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "caa63318-a363-4606-8bc5-843044ab9720",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}