{
  "id": "0708.0653",
  "version": "v1",
  "published": "2007-08-05T02:23:53.000Z",
  "updated": "2007-08-05T02:23:53.000Z",
  "title": "Experimental Violation of Bell's Inequality in Spatial-Parity Space",
  "authors": [
    "Timothy Yarnall",
    "Ayman F. Abouraddy",
    "Bahaa E. A. Saleh",
    "Malvin C. Teich"
  ],
  "comment": "10 pages, 3 figures, 1 Table",
  "journal": "Phys. Rev. Lett. 99, 170408 (2007)",
  "doi": "10.1103/PhysRevLett.99.170408",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We report the first experimental violation of Bell's inequality in the spatial domain using the Einstein--Podolsky--Rosen state. Two-photon states generated via optical spontaneous parametric downconversion are shown to be entangled in the parity of their one-dimensional transverse spatial profile. Superpositions of Bell states are prepared by manipulation of the optical pump's transverse spatial parity--a classical parameter. The Bell-operator measurements are made possible by devising simple optical arrangements that perform rotations in the one-dimensional spatial-parity space of each photon of an entangled pair and projective measurements onto a basis of even--odd functions. A Bell-operator value of 2.389 +- 0.016 is recorded, a violation of the inequality by more than 24 standard deviations.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-08-05T02:23:53.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.65.Ud",
      "03.67.Mn",
      "42.65.Lm"
    ],
    "keywords": [
      "bells inequality",
      "spatial-parity space",
      "experimental violation",
      "optical pumps transverse spatial parity-a",
      "transverse spatial parity-a classical parameter"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review Letters",
      "year": 2007,
      "month": "Oct",
      "volume": 99,
      "number": 17,
      "pages": 170408
    },
    "note": {
      "typesetting": "TeX",
      "pages": 10,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007PhRvL..99q0408Y"
    }
  }
}