{
  "annotation_id": "2348e0f9-3a84-48fd-8f18-2826959fe94c",
  "date_created": "2026-03-02T18:02:31.140000Z",
  "date_modified": "2026-03-02T18:02:31.140000Z",
  "file_hash": "bd9b9f1f819202aea4703c90873d0b9c7737c7e517fe612ed5be22429b1aad19",
  "private": false,
  "record": {
    "abstract": "We investigate the problem of enhancement of mutual information by encoding\nclassical data into entangled input states of arbitrary length and show that\nwhile there is a threshold memory or correlation parameter beyond which\nentangled states outperform the separable states, resulting in a higher mutual\ninformation, this memory threshold increases toward unity as the length of the\nstring increases. These observations imply that encoding classical data into\nentangled states may not enhance the classical capacity of quantum channels.",
    "arxiv_id": "quant-ph/0611130",
    "authors": [
      "V. Karimipour",
      "L. Memarzadeh"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1103/PhysRevA.74.062311",
    "journal_ref": "Phys. Rev. A 74, 062311 (2006)",
    "title": "Entanglement and optimal strings of qubits for memory channels",
    "url": "https://arxiv.org/abs/quant-ph/0611130"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "423bc351-dcdb-427c-940e-61ba1adfe5a5",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}