{
  "annotation_id": "bcac5d02-be6e-4409-98f4-62607fe226e5",
  "date_created": "2026-03-02T18:01:56.003000Z",
  "date_modified": "2026-03-02T18:01:56.003000Z",
  "file_hash": "8b14a07611f2b32ff6e287f441cf9b381445ba512bf2cd8e07444c6247fd2395",
  "private": false,
  "record": {
    "abstract": "The frame of classical probability theory can be generalized by enlarging the\nusual family of random variables in order to encompass nondeterministic ones:\nthis leads to a frame in which two kinds of correlations emerge: the classical\ncorrelation which is coded in the mixed state of the physical system and a new\ncorrelation, to be called probabilistic entanglement, which may occur also at\npure states. We examine to what extent this characterization of correlations\ncan be applied to quantum mechanics. Explicit calculations on simple examples\noutline that a same quantum state can show only classical correlations or only\nentanglement depending on its statistical content; situations may also arise in\nwhich the two kinds of correlations compensate each other.",
    "arxiv_id": "quant-ph/0301103",
    "authors": [
      "E. G. Beltrametti",
      "S. Bugajski"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Entanglement and classical correlations in the quantum frame",
    "url": "https://arxiv.org/abs/quant-ph/0301103"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "ebe7b0e6-97b0-41c3-a027-be55ee625bdd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}