{
  "annotation_id": "bd242921-b61f-4d5e-a806-f52abfa86c0e",
  "date_created": "2026-03-02T18:02:13.635000Z",
  "date_modified": "2026-03-02T18:02:13.635000Z",
  "file_hash": "7132e8ab18ee7fc4bf39d6343f66d881012c38efc69db4f67229db940572f7f9",
  "private": false,
  "record": {
    "abstract": "We present a communication protocol for chains of permanently coupled qubits\nwhich achieves perfect quantum state transfer and which is efficient with\nrespect to the number chains employed in the scheme. The system consists of $M$\nuncoupled identical quantum chains. Local control (gates, measurements) is only\nallowed at the sending/receiving end of the chains. Under a quite general\nhypothesis on the interaction Hamiltonian of the qubits a theorem is proved\nwhich shows that the receiver is able to asymptotically recover the messages by\nrepetitive monitoring of his qubits.",
    "arxiv_id": "quant-ph/0410175",
    "authors": [
      "Daniel Burgarth",
      "Vittorio Giovannetti",
      "Sougato Bose"
    ],
    "categories": [
      "quant-ph"
    ],
    "doi": "10.1088/0305-4470/38/30/013",
    "journal_ref": "J. Phys. A: Math. Gen. 38 6793 (2005)",
    "title": "Efficient and perfect state transfer in quantum chains",
    "url": "https://arxiv.org/abs/quant-ph/0410175"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "b4510970-0d14-4ef3-9417-b4e3344280e7",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}