{
  "id": "1305.5837",
  "version": "v1",
  "published": "2013-05-24T19:52:40.000Z",
  "updated": "2013-05-24T19:52:40.000Z",
  "title": "Comment on: \"Classical signature of quantum annealing\"",
  "authors": [
    "Lei Wang",
    "Troels F. Rønnow",
    "Sergio Boixo",
    "Sergei V. Isakov",
    "Zhihui Wang",
    "David Wecker",
    "Daniel A. Lidar",
    "John M. Martinis",
    "Matthias Troyer"
  ],
  "comment": "3 pages, 5 figures, ancillary file contains 1000 instances and QA success probabilities",
  "categories": [
    "quant-ph"
  ],
  "abstract": "In a recent preprint (arXiv:1305.4904) entitled \"Classical signature of quantum annealing\" Smolin and Smith point out that a bimodal distribution presented in (arXiv:1304.4595) for the success probability in the D-Wave device does not in itself provide sufficient evidence for quantum annealing, by presenting a classical model that also exhibits bimodality. Here we analyze their model and in addition present a similar model derived from the semi-classical limit of quantum spin dynamics, which also exhibits a bimodal distribution. We find that in both cases the correlations between the success probabilities of these classical models and the D-Wave device are weak compared to the correlations between a simulated quantum annealer and the D-Wave device. Indeed, the evidence for quantum annealing presented in arXiv:1304.4595 is not limited to the bimodality, but relies in addition on the success probability correlations between the D-Wave device and the simulated quantum annealer. The Smolin-Smith model and our semi-classical spin model both fail this correlation test.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2013-05-24T19:52:40.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum annealing",
      "classical signature",
      "d-wave device",
      "simulated quantum annealer",
      "bimodal distribution"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 3,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2013arXiv1305.5837W"
    }
  }
}