{
  "id": "1605.03911",
  "version": "v1",
  "published": "2016-05-12T17:38:17.000Z",
  "updated": "2016-05-12T17:38:17.000Z",
  "title": "Optimal measurement scheme for Gravitational Wave Detection with Coherent and Squeezed Vacuum",
  "authors": [
    "Bryan T. Gard",
    "Chenglong You",
    "Devendra K. Mishra",
    "Robinjeet Singh",
    "Hwang Lee",
    "Thomas R. Corbitt",
    "Jonathan P. Dowling"
  ],
  "comment": "7 pages, 5 figures",
  "categories": [
    "quant-ph"
  ],
  "abstract": "The search for gravitational waves is a significant undertaking; taking place at several locations around the world. Here we discuss the optimal measurement scheme for interferometric gravitational wave detectors and similar setups and find that a single mode intensity measurement, while able to beat the shot-noise limit, is outperformed by other measurement schemes in the low-power regime, but at high powers, is only outperformed by a small factor. Specifically, we confirm, that the optimal measurement scheme under ideal conditions is the parity measurement and also discuss the performance of several other common measurement schemes when considering photon loss, detector efficiency, phase drift, and thermal photon noise. We conclude that, with noise considerations, a homodyne measurement is likely the best-performing measurement and is superior to a standard single-mode intensity measurement in the low-power regime. At high powers, most detection schemes are similar, except parity, which suffers significantly under loss and thermal photon noise.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2016-05-12T17:38:17.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "optimal measurement scheme",
      "gravitational wave detection",
      "squeezed vacuum",
      "thermal photon noise",
      "standard single-mode intensity measurement"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1458310
    }
  }
}