{
  "annotation_id": "650647bf-0603-4c7a-af90-378487fa1703",
  "date_created": "2026-03-02T18:01:53.191000Z",
  "date_modified": "2026-03-02T18:01:53.191000Z",
  "file_hash": "18988de63b98bba5ee3a072857830880fecdc6e3cef6a5578c153067459fc909",
  "private": false,
  "record": {
    "abstract": "We propose a simple geometrical approach for finding the Lewenstein-Sanpera\ndecomposition of Bell decomposable states of 2 otimes 2 quantum systems. We\nshow that in these systems, the weight of the pure entangled part in the\ndecomposition is equal to the concurrence of the state. It is also shown that\nthe optimized separable part of L-S decomposition minimizes the von Neumann\nrelative entropy. We also obtain the decomposition for a class of mixed states\nby using some LQCC actions. It is also shown that for these states the average\nconcurrence of L-S decomposition is equal to their concurrence.",
    "arxiv_id": "quant-ph/0207161",
    "authors": [
      "S. J. Akhtarshenas",
      "M. A. Jafarizadeh"
    ],
    "categories": [
      "quant-ph"
    ],
    "title": "Lewenstein-Sanpera decomposition For Bell Decomposable",
    "url": "https://arxiv.org/abs/quant-ph/0207161"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "170073e3-29de-4f34-b3db-042d7dec914e",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}