{
  "annotation_id": "d0e15851-2d54-43cf-b480-c456e9135d99",
  "date_created": "2026-03-02T18:02:24.189000Z",
  "date_modified": "2026-03-02T18:02:24.189000Z",
  "file_hash": "e3dfadea3f7490dc9c7b4a7aa8f1878cf0871555d87c113719672e534adc576a",
  "private": false,
  "record": {
    "abstract": "Consider a scenario where $N$ separated quantum systems are measured, each\nwith one among two possible dichotomic observables. Assume that the $N$ events\ncorresponding to the choice and performance of the measurement in each site are\nspace-like separated. In the present paper, the correlations among the\nmeasurement outcomes that arise in this scenario are analyzed. It is shown that\nall extreme points of this convex set are attainable by measuring $N$-qubit\npure-states with projective observables. This result allows the possibility of\nusing known algorithms in order decide whether some correlations are achievable\nwithin quantum mechanics or not. It is also proven that if an $N$-partite state\n$\\rho$ violates a given Bell inequality, then, $\\rho$ can be transformed by\nstochastic local operations into an $N$-qubit state that violates the same Bell\ninequality by an equal or larger amount.",
    "arxiv_id": "quant-ph/0512100",
    "authors": [
      "Ll. Masanes"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Extremal quantum correlations for N parties with two dichotomic   observables per site",
    "url": "https://arxiv.org/abs/quant-ph/0512100"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "2cb9e716-b306-4acf-b27a-1fa8273e90d7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}