{
  "id": "2311.04484",
  "version": "v1",
  "published": "2023-11-08T06:28:46.000Z",
  "updated": "2023-11-08T06:28:46.000Z",
  "title": "Leggett-Garg test of macrorealism using indefinite causal order of measurements",
  "authors": [
    "A. K. Pan"
  ],
  "journal": "Physics Letters A, 478,128898 (2023)",
  "doi": "10.1016/j.physleta.2023.128898",
  "categories": [
    "quant-ph"
  ],
  "abstract": "Macrorealism is a belief that constitutes the core of our perception of reality in the everyday world. The Leggett-Garg (LG) test is a conceptually elegant approach for probing the compatibility between the notion of macrorealism and quantum theory. However, a conclusive LG test hinges on how one fixes the operational invasiveness loophole, i.e., how the statistical form of non-invasive measurability assumption is guaranteed in an LG test. Despite many attempts to close this loophole, no consensus has been achieved yet. In this work, we propose a simple and elegant scheme based on indefinite causal order in quantum switch experiment, which enables us to close this loophole, and eventually, the LG test becomes a conclusive test of macrorealism.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2023-11-08T06:28:46.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "indefinite causal order",
      "leggett-garg test",
      "macrorealism",
      "measurements",
      "conclusive lg test hinges"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "Elsevier"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}