{
  "id": "2405.08192",
  "version": "v1",
  "published": "2024-05-13T21:19:50.000Z",
  "updated": "2024-05-13T21:19:50.000Z",
  "title": "What is \"quantum\" about quantum gravity?",
  "authors": [
    "Giorgio Torrieri"
  ],
  "categories": [
    "quant-ph",
    "gr-qc",
    "hep-th"
  ],
  "abstract": "Assuming the validity of the equivalence principle in the quantum regime, we argue that one of the assumptions of the usual definition of quantum mechanics, namely separation between the ``classical'' detector and the ``quantum'' system, must be relaxed. We argue, therefore, that if both the equivalence principle and quantum mechanics continue to survive experimental tests, that this favors ``epistemic'' interpretations of quantum mechanics (where formalism is built around relations between observables) over ``ontic ones'' (assuming the reality of states and wavefunctions). In particular, we show that relational type interpretations can readily accomodate the equivalence principle via a minor modification of the assumptions used to justify the formalism. We qualitatively speculate what a full generally covariant quantum dynamics could look like, and comment on experimental investigations.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-05-13T21:19:50.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "quantum gravity",
      "equivalence principle",
      "relational type interpretations",
      "quantum mechanics continue",
      "covariant quantum dynamics"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}