{
  "id": "2406.19355",
  "version": "v1",
  "published": "2024-06-27T17:33:12.000Z",
  "updated": "2024-06-27T17:33:12.000Z",
  "title": "A class of ghost-free theories in symmetric teleparallel geometry",
  "authors": [
    "Antonio G. Bello-Morales",
    "Jose Beltrán Jiménez",
    "Alejandro Jiménez Cano",
    "Antonio L. Maroto",
    "Tomi S. Koivisto"
  ],
  "comment": "11 pages, no figures",
  "categories": [
    "gr-qc",
    "astro-ph.CO"
  ],
  "abstract": "Theories formulated in the arena of teleparallel geometries are generically plagued by ghost-like instabilities or other pathologies that are ultimately caused by the breaking of some symmetries. In this work, we construct a class of ghost-free theories based on a symmetry under Transverse Diffeomorphisms that is naturally realised in symmetric teleparallelism. We explicitly show their equivalence to a family of theories with an extra scalar field plus a global degree of freedom and how Horndeski theories and healthy couplings to matter fields can be readily accommodated.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2024-06-27T17:33:12.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "symmetric teleparallel geometry",
      "ghost-free theories",
      "extra scalar field plus",
      "matter fields",
      "transverse diffeomorphisms"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}