{
  "id": "1007.1795",
  "version": "v2",
  "published": "2010-07-11T19:40:44.000Z",
  "updated": "2010-08-20T04:00:48.000Z",
  "title": "Emergent Geometry and Quantum Gravity",
  "authors": [
    "Hyun Seok Yang"
  ],
  "comment": "Invited Review for Mod. Phys. Lett. A, 17 pages",
  "journal": "Mod.Phys.Lett.A25:2381,2010",
  "doi": "10.1142/S0217732310034067",
  "categories": [
    "hep-th",
    "gr-qc",
    "hep-ph"
  ],
  "abstract": "We explain how quantum gravity can be defined by quantizing spacetime itself. A pinpoint is that the gravitational constant G = L_P^2 whose physical dimension is of (length)^2 in natural unit introduces a symplectic structure of spacetime which causes a noncommutative spacetime at the Planck scale L_P. The symplectic structure of spacetime M leads to an isomorphism between symplectic geometry (M, \\omega) and Riemannian geometry (M, g) where the deformations of symplectic structure \\omega in terms of electromagnetic fields F=dA are transformed into those of Riemannian metric g. This approach for quantum gravity allows a background independent formulation where spacetime as well as matter fields is equally emergent from a universal vacuum of quantum gravity which is thus dubbed as the quantum equivalence principle.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-08-20T04:00:48.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "02.40.Gh",
      "11.25.Tq",
      "11.10.Nx"
    ],
    "keywords": [
      "quantum gravity",
      "emergent geometry",
      "symplectic structure",
      "background independent formulation",
      "quantum equivalence principle"
    ],
    "tags": [
      "review article",
      "journal article"
    ],
    "publication": {
      "journal": "Modern Physics Letters A",
      "year": 2010,
      "volume": 25,
      "number": 28,
      "pages": 2381
    },
    "note": {
      "typesetting": "TeX",
      "pages": 17,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 860890,
      "adsabs": "2010MPLA...25.2381Y"
    }
  }
}