{
  "annotation_id": "c1329799-6113-462c-a26c-e431a87ec96c",
  "date_created": "2026-03-02T18:02:20.427000Z",
  "date_modified": "2026-03-02T18:02:20.427000Z",
  "file_hash": "b7fc591a4be4eccbba2f106b15ea6dc8b13e35b6a734ff01abfc9b6624d86cf1",
  "private": false,
  "record": {
    "abstract": "Bell proved that quantum entanglement enables two space-like separated\nparties to exhibit classically impossible correlations. Even though these\ncorrelations are stronger than anything classically achievable, they cannot be\nharnessed to make instantaneous (faster than light) communication possible.\nYet, Popescu and Rohrlich have shown that even stronger correlations can be\ndefined, under which instantaneous communication remains impossible. This\nraises the question: Why are the correlations achievable by quantum mechanics\nnot maximal among those that preserve causality? We give a partial answer to\nthis question by showing that slightly stronger correlations would result in a\nworld in which communication complexity becomes trivial.",
    "arxiv_id": "quant-ph/0508042",
    "authors": [
      "Gilles Brassard",
      "Harry Buhrman",
      "Noah Linden",
      "Andre A. Methot",
      "Alain Tapp",
      "Falk Unger"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevLett.96.250401",
    "journal_ref": "Physical Review Letters 96: 250401, 2006.",
    "title": "A limit on nonlocality in any world in which communication complexity is   not trivial",
    "url": "https://arxiv.org/abs/quant-ph/0508042"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "e7598a59-7c1a-470f-9661-a26b2c5215df",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}