{
  "id": "2002.01402",
  "version": "v1",
  "published": "2020-02-04T16:51:59.000Z",
  "updated": "2020-02-04T16:51:59.000Z",
  "title": "Universal Gate Set for Continuous-Variable Quantum Computation with Microwave Circuits",
  "authors": [
    "Timo Hillmann",
    "Fernando Quijandría",
    "Göran Johansson",
    "Alessandro Ferraro",
    "Simone Gasparinetti",
    "Giulia Ferrini"
  ],
  "comment": "6+6 pages, 2 figures",
  "categories": [
    "quant-ph"
  ],
  "abstract": "We provide an explicit construction of a universal gate set for continuous-variable quantum computation with microwave circuits. Such a universal set has been first proposed in quantum-optical setups, but its experimental implementation has remained elusive in that domain due to the difficulties in engineering strong nonlinearities. Here, we show that a realistic microwave architecture allows to overcome this difficulty. As an application, we show that this architecture allows to generate a cubic phase state with an experimentally feasible procedure. This work highlights a practical advantage of microwave circuits with respect to optical systems for the purpose of engineering non-Gaussian states, and opens the quest for continuous-variable algorithms based on a few repetitions of elementary gates from the continuous-variable universal set.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2020-02-04T16:51:59.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "universal gate set",
      "continuous-variable quantum computation",
      "microwave circuits",
      "cubic phase state",
      "realistic microwave architecture"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}