{
  "id": "1809.08476",
  "version": "v1",
  "published": "2018-09-22T19:18:19.000Z",
  "updated": "2018-09-22T19:18:19.000Z",
  "title": "Understanding the saturation power of Josephson Parametric Amplifiers made from SQUIDs arrays",
  "authors": [
    "Luca Planat",
    "Remy Dassonneville",
    "Javier Puertas Martinez",
    "Farshad Foroughi",
    "Olivier Buisson",
    "Wiebke Hasch-Guichard",
    "Cecile Naud",
    "R. Vijay",
    "Kater Murch",
    "Nicolas Roch"
  ],
  "comment": "12 pages, 9 figures, Appendices included",
  "categories": [
    "cond-mat.mes-hall",
    "quant-ph"
  ],
  "abstract": "We report on the implementation and detailed modelling of a Josephson Parametric Amplifier (JPA) made from an array of eighty Superconducting QUantum Interference Devices (SQUIDs), forming a non-linear quarter-wave resonator. This device was fabricated using a very simple single step fabrication process. It shows a large bandwidth (45 MHz), an operating frequency tunable between 5.9 GHz and 6.8 GHz and a large input saturation power (-117 dBm) when biased to obtain 20 dB of gain. Despite the length of the SQUID array being comparable to the wavelength, we present a model based on an effective non-linear LC series resonator that quantitatively describes these figures of merit without fitting parameters. Our work illustrates the advantage of using array-based JPA since a single-SQUID device showing the same bandwidth and resonant frequency would display a saturation power 15 dB lower.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2018-09-22T19:18:19.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "josephson parametric amplifier",
      "saturation power",
      "squids arrays",
      "non-linear lc series resonator",
      "superconducting quantum interference devices"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}