{
  "id": "0712.3554",
  "version": "v1",
  "published": "2007-12-20T19:55:03.000Z",
  "updated": "2007-12-20T19:55:03.000Z",
  "title": "Unified Theory of Ghost Imaging with Gaussian-State Light",
  "authors": [
    "Baris I. Erkmen",
    "Jeffrey H. Shapiro"
  ],
  "comment": "14 pages, 4 figures",
  "doi": "10.1103/PhysRevA.77.043809",
  "categories": [
    "quant-ph"
  ],
  "abstract": "The theory of ghost imaging is developed in a Gaussian-state framework that both encompasses prior work - on thermal-state and biphoton-state imagers - and provides a complete understanding of the boundary between classical and quantum behavior in such systems. The core of this analysis is the expression derived for the photocurrent-correlation image obtained using a general Gaussian-state source. This image is expressed in terms of the phase-insensitive and phase-sensitive cross-correlations between the two detected fields, plus a background. Because any pair of cross-correlations is obtainable with classical Gaussian states, the image does not carry a quantum signature per se. However, if the image characteristics of classical and nonclassical Gaussian-state sources with identical auto-correlation functions are compared, the nonclassical source provides resolution improvement in its near field and field-of-view improvement in its far field.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-12-20T19:55:03.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "42.30.Va",
      "42.50.Ar",
      "42.50.Dv"
    ],
    "keywords": [
      "ghost imaging",
      "gaussian-state light",
      "unified theory",
      "encompasses prior work",
      "general gaussian-state source"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2008,
      "month": "Apr",
      "volume": 77,
      "number": 4,
      "pages": "043809"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2008PhRvA..77d3809E"
    }
  }
}