{
  "annotation_id": "82ae1f58-ede9-4c42-80bf-4c7271067121",
  "date_created": "2026-03-02T18:00:46.856000Z",
  "date_modified": "2026-03-02T18:00:46.856000Z",
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  "record": {
    "abstract": "The discovery of acceleration of the universe expansion in recent\nastrophysics research prompts the author to propose that the Newton\u0027s\ngravitation law can be generalized to accommodate the antimatter: While the\nforce between matters(antimatters) is attractive, the force between matter and\nantimatter is a repulsive one. A paradox of negative-mass in gravity versus a\nbasic symmetry (m--\u003e-m) based on quantum mechanics is discussed in sufficient\ndetail so that the new postulate could be established quite naturally.\nCorresponding modification of the theory of general relativity is also\nsuggested. If we believe in the symmetry of particle and antiparticle as well\nas the antigravity between them, it might be possible to consider a new\nscenario of the expansion of universe which might provide some new insight into\nthe interpretation of cosmological phenomena including the accelerating\nuniverse observed.",
    "arxiv_id": "physics/0308038",
    "authors": [
      "Guang-Jiong Ni"
    ],
    "categories": [
      "physics.gen-ph"
    ],
    "journal_ref": "Rel.Grav.Cosmol. 1 (2004) 123-136",
    "title": "A new insight into the negative-mass paradox of gravity and the   accelerating universe",
    "url": "https://arxiv.org/abs/physics/0308038"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "f1ea60ad-40a3-4308-b36e-df1daf3c21ac",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}