{
  "id": "1702.01720",
  "version": "v1",
  "published": "2017-02-06T17:46:19.000Z",
  "updated": "2017-02-06T17:46:19.000Z",
  "title": "Quantum detection of wormholes",
  "authors": [
    "Carlos Sabín"
  ],
  "comment": "5 pages, 4 figures",
  "categories": [
    "quant-ph",
    "gr-qc"
  ],
  "abstract": "We show how to use quantum metrology to detect a wormhole. A coherent state of the electromagnetic field experiences a phase shift with a slight dependence on the throat radius of a possible distant wormhole. We show that this tiny correction is, in principle, detectable by homodyne measurements after long propagation lengths for a wide range of throat radii and distances to the wormhole, even if the detection takes place very far away from the throat, where the spacetime is very close to a flat geometry. We use realistic parameters from state-of-the-art long-baseline laser interferometry, both Earth-based and space-borne. The scheme is, in principle, robust to optical losses and initial mixedness.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-02-06T17:46:19.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum detection",
      "throat radius",
      "state-of-the-art long-baseline laser interferometry",
      "long propagation lengths",
      "electromagnetic field experiences"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 5,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}