{
  "id": "quant-ph/0312093",
  "version": "v2",
  "published": "2003-12-10T11:19:07.000Z",
  "updated": "2004-06-02T06:06:49.000Z",
  "title": "Group Velocity of a Probe Light in an Ensemble of Lambda Atoms under Two-Photon Resonance",
  "authors": [
    "Y. Li",
    "C. P. Sun"
  ],
  "comment": "4 pages, 3 figures",
  "journal": "Phys. Rev. A 69, 051802(R) (2004)",
  "doi": "10.1103/PhysRevA.69.051802",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We study the propagation of a probe light in an ensemble of $\\Lambda$-type atoms, utilizing the dynamic symmetry as recently discovered when the atoms are coupled to a classical control field and a quantum probe field {[Sun {\\it et al.,} Phys. Rev. Lett. {\\bf 91}, 147903 (2003)]}. Under two-photon resonance, we calculate the group velocity of the probe light with collective atomic excitations. Our result gives the dependence of the group velocity on the common one-photon detuning, and can be compared with the recent experiment (E. E. Mikhailov, Y. V. Rostovtsev, and G. R. Welch, quant-ph/0309173).",
  "revisions": [
    {
      "version": "v2",
      "updated": "2004-06-02T06:06:49.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "group velocity",
      "probe light",
      "two-photon resonance",
      "lambda atoms",
      "quantum probe field"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. A"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 4,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}