{
  "id": "1210.5799",
  "version": "v2",
  "published": "2012-10-22T04:09:17.000Z",
  "updated": "2012-11-29T03:37:03.000Z",
  "title": "Surface code with decoherence: An analysis of three superconducting architectures",
  "authors": [
    "Joydip Ghosh",
    "Austin G. Fowler",
    "Michael R. Geller"
  ],
  "comment": "14 pages, 12 figures",
  "journal": "Phys. Rev. A 86, 062318 (2012)",
  "doi": "10.1103/PhysRevA.86.062318",
  "categories": [
    "quant-ph",
    "cond-mat.other",
    "cond-mat.supr-con"
  ],
  "abstract": "We consider realistic, multi-parameter error models and investigate the performance of the surface code for three possible fault-tolerant superconducting quantum computer architectures. We map amplitude and phase damping to a diagonal Pauli \"depolarization\" channel via the Pauli twirl approximation, and obtain the logical error rate as a function of the qubit T1, T2 and state preparation, gate, and readout errors. A numerical Monte Carlo simulation is performed to obtain the logical error rates and a leading-order analytic formula is derived to estimate their behavior below threshold. Our results suggest that scalable fault-tolerant quantum computation should be possible with existing superconducting devices.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-11-29T03:37:03.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "03.67.Lx",
      "03.67.Pp",
      "85.25.-j"
    ],
    "keywords": [
      "surface code",
      "superconducting architectures",
      "logical error rate",
      "fault-tolerant superconducting quantum computer architectures",
      "decoherence"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review A",
      "year": 2012,
      "month": "Dec",
      "volume": 86,
      "number": 6,
      "pages": "062318"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2012PhRvA..86f2318G"
    }
  }
}